U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

You searched for: Subject term rivers Remove constraint Subject term: rivers Text availability Citation in PubAg Remove constraint Text availability: Citation in PubAg
Start Over

Search

65,962  Search Results

« Previous | 1 - 100 of 65,962 |
Number of results to display per page

Search Results

1. "Ashkui" Vernal Ice-cover Phenomena and Their Ecological Role in Southern Labrador

Author:
Shauna M. Baillie; Corinne D. Wilkerson; Tina L. Newbury
Source:
Canadian field-naturalist 2004 v.118 no.2 pp. 267-269
ISSN:
0008-3550
Subject:
Bucephala; Lontra canadensis; birds of prey; forage; lakes; rivers; spring; waterfowl; Newfoundland and Labrador
Abstract:
... This is the first documented incident of River Otter (Lutra canadensis) feeding on Common Goldeneye (Bucephala clangula) in a little studied region, southern Labrador. Our observations were made during spring staging when waterfowl aggregate at open water sites in frozen lakes and rivers, locally known as ashkui. We suggest that otters and raptors opportunistically forage on staging waterfowl at a ...
DOI:
10.22621/cfn.v118i2.927

2. "Cooperation gets it done": social capital in natural resources management along the Kaskaskia River

Author:
Leahy, Jessica E.; Anderson, Dorothy H.
Source:
Society & natural resources 2010 v.23 no.3 pp. 224-239
ISSN:
0894-1920
Subject:
rivers; natural resource management; social capital; case studies; Illinois
DOI:
10.1080/08941920802378897

3. "Industrialized agriculture" on mini-plots within cities / conurbations

Author:
Thomas, S.
Source:
Acta horticulturae 2010 v. no.881 pp. 73-78
ISSN:
0567-7572
Subject:
air pollution; cities; ground vegetation; industrialization; natural resources conservation; residential areas; risk; rivers; soil; terraces; tourism; vineyards; water erosion; wind erosion
Abstract:
... The fundamental changes of pre-industrial agriculture into “industrialized agricultural practices” on mini-plots within cities will be discussed, especially for vineyards on slopes / terraces. The areas under consideration are the west and south exposed right-hand river-side slopes of the Elbe river valley within the conurbation “Upper Elbe” between Pillnitz south of Dresden and Seusslitz north of ...

4.  Winter survival of Phytophthora alni subsp. alni in aerial tissues of black alder        

Author:
K. Černý; V. Strnadová
Source:
Journal of Forest Science v.58 no.7 pp. 328-336
ISSN:
1212-4834
Subject:
Alnus glutinosa; Phytophthora alni; bark; climate change; cold; disease severity; environmental factors; forests; overwintering; pathogen survival; pathogens; rivers; survival rate; temperature; winter; Central European region
Abstract:
... The winter survival of the invasive pathogen Phytophthora alni subsp. alni in black alder stems was studied in the bankside alder stand of the Moravská Dyje River in southern Bohemia after two very different winter seasons: cold in 2008/2009, with the average temperature of –1.96°C, and extremely mild in 2006/2007, with the average temperature of 2.54°C. The difference in thes ...
DOI:
10.17221/11/2012-jfs

5. (Eco)toxicological effects of 2,4,7,9-tetramethyl-5-decyne-4,7-diol (TMDD) in zebrafish (Danio rerio) and permanent fish cell cultures

Author:
Krisztina Vincze; Martin Gehring; Thomas Braunbeck
Source:
Environmental science and pollution research international 2014 v.21 no.13 pp. 8233-8241
ISSN:
0944-1344
Subject:
Danio rerio; acute effects; bioaccumulation; biodegradation; carcinogenicity; cell culture; cytotoxicity; developmental stages; developmental toxicity; fish; genotoxicity; in vivo studies; industry; long term effects; mortality; paper; pesticides; physicochemical properties; reproduction; risk; rivers; screening; sexual development
Abstract:
... 2,4,7,9-tetramethyl-5-decyne-4,7-diol (TMDD) is a high-production volume chemical used in paper, ink, pesticide, and adhesive industries as a wetting and anti-foaming agent. The physicochemical properties and slow biodegradation rate of TMDD indicate a low bioaccumulation potential but a high prevalence in the environment. As a consequence, TMDD has been detected in several European rivers in the ...
DOI:
10.1007/s11356-014-2806-y
PubMed:
24687796

6. (Eco)toxicological maps: A new risk assessment method integrating traditional and in silico tools and its application in the Ledra River (Italy)

Author:
Giuseppa Raitano; Daniele Goi; Valentina Pieri; Alice Passoni; Michele Mattiussi; Anna Lutman; Isabella Romeo; Alberto Manganaro; Marco Marzo; Nicola Porta; Diego Baderna; Andrea Colombo; Eleonora Aneggi; Fabrizio Natolino; Marco Lodi; Renzo Bagnati; Emilio Benfenati
Source:
Environment international 2018 v.119 pp. 275-286
ISSN:
0160-4120
Subject:
chemical pollutants; drugs; endocrine-disrupting chemicals; human health; humans; personal care products; pesticides; receptors; risk; risk assessment process; rivers; wastewater; wastewater treatment; watersheds; Italy
Abstract:
... Contaminants giving rise to emerging concern like pharmaceuticals, personal care products, pesticides and Endocrine Disrupting Chemicals (EDCs) have been detected in wastewaters, as reported in the literature, but little is known about their (eco)toxicological effects and consequent human health impact. The present study aimed at overcoming this lack of information through the use of in silico met ...
DOI:
10.1016/j.envint.2018.06.035

7. (Fluoro)quinolones and quinolone resistance genes in the aquatic environment: A river catchment perspective

Author:
Erika Castrignanò; Andrew M. Kannan; Kathryn Proctor; Bruce Petrie; Sarah Hodgen; Edward J. Feil; Simon E. Lewis; Luigi Lopardo; Dolores Camacho-Muñoz; Jack Rice; Nick Cartwright; Ruth Barden; Barbara Kasprzyk-Hordern
Source:
Water research 2020 v.182 pp. 116015
ISSN:
0043-1354
Subject:
activated sludge; antibiotic resistance; aquatic environment; ciprofloxacin; epidemiology; flumequine; gene dosage; levofloxacin; lomefloxacin; metabolites; moxifloxacin; nalidixic acid; norfloxacin; people; research; resistance genes; rivers; statistics; stereoselectivity; wastewater; wastewater treatment; water; watersheds; England
Abstract:
... This study provides an insight into the prevalence of (fluoro)quinolones (FQs) and their specific quinolone qnrS resistance gene in the Avon river catchment area receiving treated wastewater from 5 wastewater treatment plants (WWTPs), serving 1.5 million people and accounting for 75% of inhabitants living in the catchment area in the South West of England.. Ofloxacin, ciprofloxacin, nalidixic acid ...
DOI:
10.1016/j.watres.2020.116015

8. (Methyl)Mercury, Arsenic, and Lead Contamination of the World’s Largest Wastewater Irrigation System: the Mezquital Valley (Hidalgo State—Mexico)

Author:
Stéphane Guédron; Céline Duwig; Blanca Lucia Prado; David Point; Marizol Giovana Flores; Christina Siebe
Source:
Water, air, and soil pollution 2014 v.225 no.8 pp. 2045
ISSN:
0049-6979
Subject:
adsorption; agricultural soils; arsenic; chromium; drinking water; groundwater; iron; irrigated soils; lead; manganese; mercury; methylmercury compounds; monitoring; oxidation; pH; people; risk; rivers; soil profiles; surface water; wastewater; wastewater irrigation; water supply; Mexico
Abstract:
... In the Mezquital valley, untreated wastewater (45 m³ s⁻¹) from Mexico City is used for the irrigation of around 900 km²of agricultural soil. High concentrations of metals including methylmercury (3.8 ± 2.5 ng l⁻¹) and lead (0.16 ± 0.05 mg l⁻¹) were measured in anoxic wastewater canals. Downstream, dissolved, and particulate polymetallic (Hg, Pb, Cr…) concentrations decreased by factors 10 to 1,000 ...
DOI:
10.1007/s11270-014-2045-3

9. (Micro) plastic fluxes and stocks in Lake Geneva basin

Author:
Julien Boucher; Florian Faure; Olivier Pompini; Zara Plummer; Olivier Wieser; Luiz Felippe de Alencastro
Source:
Trends in analytical chemistry 2019 v.112 pp. 66-74
ISSN:
0165-9936
Subject:
basins; lakes; microplastics; models; pollution; rivers; sediments; socioeconomics; Lake Geneva
Abstract:
... High amounts of macro and microplastic have been reported in rivers, lakes and seas. However, links between the observed pollution and their sources remain unclear. This study aims to clarify these links in the Lake Geneva basin by analysing each step of the local plastic life cycle.Two distinct approaches have been compared: (i) a top-down approach based on modelling socio-economic activities, pl ...
DOI:
10.1016/j.trac.2018.11.037

10. (Mis) management of floodplain vegetation: The effect of invasive species on vegetation roughness and flood levels

Author:
Tímea Kiss; Judit Nagy; István Fehérváry; Csaba Vaszkó
Source:
Science of the total environment 2019 v.686 pp. 931-945
ISSN:
0048-9697
Subject:
Amorpha fruticosa; Populus; ecological invasion; floodplains; floods; forest plantations; habitats; invasive species; land cover; models; pastures; plants (botany); plows; riparian forests; rivers; roughness; water flow; wetlands; Hungary
Abstract:
... Floodplains are prone to plant invasions, which increase their roughness and decrease their flood conveyance capacity. In recent decades, extremely high floods have occurred in the Tisza River (Hungary) without an increase in discharge. This could be partly explained by land cover changes, as plough fields and pastures have been replaced by forest plantations and invasive plants have become widesp ...
DOI:
10.1016/j.scitotenv.2019.06.006

11. (Re)Development of fluvial islands along the lower Mississippi River over five decades, 1965–2015

Author:
Paul F. Hudson; Edward van der Hout; Madelief Verdaasdonk
Source:
Geomorphology 2019 v.331 pp. 78-91
ISSN:
0169-555X
Subject:
Internet; aerial photography; computer software; data collection; engineering; geographic information systems; growth and development; habitats; hydrologic data; islands; lidar; pollution load; remote sensing; riparian areas; rivers; sediment yield; sediments; spatial data; t-test; topographic maps; vegetation; Mississippi; Mississippi River
Abstract:
... The development and evolution of islands along the lower Mississippi River were examined over a 50 year period, between 1965 and 2015. Fluvial islands were historically a fundamental component of the riparian corridor, serving as important ecological habitat for aquatic and terrestrial species. Their degradation was associated with channel engineering, leading to a pronounced single thread channel ...
DOI:
10.1016/j.geomorph.2018.11.005

12. +Study of metallic contamination of Oued Sebou sediments, Morocco

Author:
Saadia El Hajjami; Nor-edine Abriak; Salah Souabi; Mohammed El Alami
Source:
Environmental technology & innovation 2021 v.23 pp. 101680
ISSN:
2352-1864
Subject:
cadmium; chromium; copper; environmental technology; lead; mass spectrometry; mercury; nickel; pollution; rivers; zinc; Morocco
Abstract:
... The water of Oued Sebou has known for several years, an alteration in its quality. This is due to the discharge of pollutants of different natures and origins, which come from domestic, agricultural or industrial activities. In this study, we will try to carry out a spatiotemporal evaluation of the contamination of the sediments of the river in question by metallic trace elements. This assessment ...
DOI:
10.1016/j.eti.2021.101680

13. 1,4-Dioxane contamination of German drinking water obtained by managed aquifer recharge systems: Distribution and main influencing factors

Author:
Ursula Karges; Diana Ott; Sabrina De Boer; Wilhelm Püttmann
Source:
Science of the total environment 2020 v.711 pp. 134783
ISSN:
0048-9697
Subject:
aquifers; biodegradability; carcinogens; dioxane; drinking water; filtration; gas chromatography-mass spectrometry; groundwater; groundwater contamination; groundwater recharge; rivers; solid phase extraction; surface water; water utilities; Germany
Abstract:
... 1,4-Dioxane, a cyclic ether that has been classified as a class 2B carcinogen by the US-EPA, is a substance of growing environmental concern because of its abundant occurrence in surface waters worldwide. Its high polarity and low biodegradability hamper its retardation in aquifer systems. Previous investigations in Germany have shown that 1,4-dioxane is already widely distributed in rivers and ca ...
DOI:
10.1016/j.scitotenv.2019.134783

14. 1-Butyl-3-aminopropyl imidazolium—functionalized graphene oxide as a nanoadsorbent for the simultaneous extraction of steroids and β-blockers via dispersive solid–phase microextraction

Author:
Maria Serrano; Theodoros Chatzimitakos; Mercedes Gallego; Constantine D. Stalikas
Source:
Journal of chromatography 2016 v.1436 pp. 9-18
ISSN:
0021-9673
Subject:
adsorbents; anabolic steroids; beta-adrenergic antagonists; chromatography; detection limit; graphene oxide; ionic liquids; lakes; municipal wastewater; nanomaterials; rivers; solid phase microextraction; statistical analysis; steroids; wastewater treatment
Abstract:
... In this study, we describe the synthesis of graphene oxide functionalized with the ionic liquid 1-butyl-3-aminopropyl imidazolium chloride and its use as an adsorbent for the dispersive solid–phase microextraction (micro SPE) of four anabolic steroids and six β-blockers from aqueous samples of environmental importance, prior to their HPLC-diode array detector analysis. As the ionic liquid is coval ...
DOI:
10.1016/j.chroma.2016.01.052

15. 1/4 to 1/3 of observed warming trends in China from 1980 to 2015 are attributed to land use changes

Author:
Pengke Shen; Shuqing Zhao
Source:
Climatic change 2021 v.164 no.3-4 pp. 59
ISSN:
0165-0009
Subject:
asymmetry; autumn; climate; data collection; river deltas; rivers; spring; summer; temperature; urbanization; vegetation cover; winter; China; Yangtze River
Abstract:
... Changes in land use, especially urbanization, alter the biophysical properties of Earth’s surface, which in turn affects local climate and even contributes to global warming. The observation minus reanalysis (OMR) approach has been widely applied to isolate the signal of surface forcing from observed temperature changes (which reflect all the sources of climate forcings, including surface effects) ...
DOI:
10.1007/s10584-021-03045-9

16. 10 years after the largest river restoration project in Northern Europe: Hydromorphological changes on multiple scales in River Skjern

Author:
E.A. Kristensen; B. Kronvang; P. Wiberg-Larsen; H. Thodsen; C. Nielsen; E. Amor; N. Friberg; M.L. Pedersen; A. Baattrup-Pedersen
Source:
Ecological engineering 2014 v.66 pp. 141-149
ISSN:
0925-8574
Subject:
ecological restoration; engineering; floodplains; habitats; hydrology; islands; oxbow lakes; riparian areas; rivers; sediments; wetlands; Denmark; Northern European region
Abstract:
... The lower river Skjern (Denmark) historically contained a large variation in habitats and the river ran through large areas with wetlands, many backwaters, islands and oxbow lakes. During the 1960s the river was channelized and the wetland drained. A restoration during 2001–2002 transformed 19km of channelized river into 26km meandering river. The short-term effects of this restoration have previo ...
DOI:
10.1016/j.ecoleng.2013.10.001

17. 10 years long-term assessment on characterizing spatiotemporal trend and source apportionment of metal(loid)s in terrestrial soils along the west coast of South Korea

Author:
Seo Joon Yoon; Seongjin Hong; Changkeun Lee; Junghyun Lee; Taewoo Kim; Jongmin Lee; Beomgi Kim; Junsung Noh; Bong-Oh Kwon; Jong Seong Khim
Source:
Science of the total environment 2022 v.826 pp. 154214
ISSN:
0048-9697
Subject:
agricultural pollution; coasts; environment; fuel combustion; lakes; land use; models; risk; rivers; soil; temporal variation; transportation; South Korea
Abstract:
... Long-term trends in the spatial distributions and sources of metal(loid)s in soils adjacent to the west coastal areas of South Korea have been systematically investigated for 10 years (2010–2019). Monitoring in 17 sites clearly showed site- and region-specific distributions, being associated with land use type (significant differences, as road > agriculture > wild) (P < 0.05), rather than temporal ...
DOI:
10.1016/j.scitotenv.2022.154214

18. 1000 dams down and counting

Author:
J. E. O'Connor; J. J. Duda; G. E. Grant
Source:
Science 2015 v.348 no.6234 pp. 496-497
ISSN:
0036-8075
Subject:
rivers; sediments; Washington (state)
Abstract:
... Forty years ago, the demolition of large dams was mostly fiction, notably plotted in Edward Abbey's novel The Monkey Wrench Gang. Its 1975 publication roughly coincided with the end of large-dam construction in the United States. Since then, dams have been taken down in increasing numbers as they have filled with sediment, become unsafe or inefficient, or otherwise outlived their usefulness (1) (s ...
DOI:
10.1126/science.aaa9204

19. 1001. NICOTIANA MEGALOSIPHON: Solanaceae

Author:
Mark W. Chase; Maarten J. M. Christenhusz
Source:
Curtis's botanical magazine 2021 v.38 no.3 pp. 425-434
ISSN:
1355-4905
Subject:
Nicotiana; cell biology; ecology; rivers
Abstract:
... Nicotiana megalosiphon is illustrated from plants cultivated at the Royal Botanic Gardens, Kew, which were grown from seeds collected near the bridge over the Mehi River near Moree, New South Wales, Australia. Its taxonomic history, ecology, cytology, etymology and cultivation are discussed. The two subspecies previously recognised within this taxon are here elevated to species level: N. megalosip ...
DOI:
10.1111/curt.12409

20. 1008. ECHINOPS WAKHANICUS: Compositae

Author:
Nicholas Hind; Kit Strange; Masumi Yamanaka
Source:
Curtis's botanical magazine 2022 v.39 no.1 pp. 15-34
ISSN:
1355-4905
Subject:
Echinops; Oligolepis; conservation status; rivers; seed collecting; synflorescences; terminology; Afghanistan; Tajikistan
Abstract:
... Echinops wakhanicus Rech.f. (Compositae: Cardueae: Echinopsinae) is described and illustrated, and its taxonomic position discussed. Field observations and seed collection of the species are mentioned. The genus Echinops is discussed, and comments made on its infrageneric classification, and the placement of E. wakhanicus in sect. Oligolepis. The terminology used in describing the flowering struct ...
DOI:
10.1111/curt.12430

21. 100 kyr sedimentary record of Marginal Gangetic Plain: Implications for forebulge tectonics

Author:
Rupa Ghosh; Pradeep Srivastava; U.K. Shukla; R.K. Sehgal; I.B. Singh
Source:
Palaeogeography, palaeoclimatology, palaeoecology 2019 v.520 pp. 78-95
ISSN:
0031-0182
Subject:
basins; climatic factors; color; floodplains; luminescence; rivers; rocks; sediments; tectonics; Himalayan region
Abstract:
... The Gangetic Foreland is a consequence of continent-continent collision and formation of the Himalayan thrust and fold belt. In the more distal part of the peripheral Gangetic foreland basin, the Late Quaternary sedimentary architecture analysis from 17 stratigraphic successions together with optically stimulated luminescence dating (OSL) divulge interaction of peripheral bulge tectonics and clima ...
DOI:
10.1016/j.palaeo.2019.01.035

22. 10Be and OSL dating of Pleistocene fluvial terraces along the Hongshuiba River: Constraints on tectonic and climatic drivers for fluvial downcutting across the NE Tibetan Plateau margin, China

Author:
Haibo Yang; Xiaoping Yang; Weiliang Huang; An Li; Zongkai Hu; Xiongnan Huang; Huili Yang
Source:
Geomorphology 2020 v.348 pp. 106884
ISSN:
0169-555X
Subject:
Holocene epoch; Pleistocene epoch; arid zones; climate change; climatic factors; loess; monsoon season; radiative forcing; rivers; sampling; summer; tectonics; terraces; watersheds; China
Abstract:
... Accurate geochronologic constraints of fluvial surfaces along tectonically active mountain fronts can help clarify river responses to tectonic uplift and rapid climate change. In this study, we re-constrained abandonment ages of four fluvial terraces along the Hongshuiba River on the northern margin of the Qilian Shan, NE Tibet using 10Be depth profiles to date fluvial deposits, and OSL dating of ...
DOI:
10.1016/j.geomorph.2019.106884

23. 10Be constrains the sediment sources and sediment yields to the Great Barrier Reef from the tropical Barron River catchment, Queensland, Australia

Author:
Kyle K. Nichols; Paul R. Bierman; Dylan H. Rood
Source:
Geomorphology 2014 v.224 pp. 102-110
ISSN:
0169-555X
Subject:
climate change; coasts; highlands; hurricanes; landscape management; rivers; sand; sediment yield; topographic slope; watersheds; Coral Sea; Great Barrier Reef; Pacific Ocean; Queensland
Abstract:
... Estimates of long-term, background sediment generation rates place current and future sediment fluxes to the Great Barrier Reef in context. Without reliable estimates of sediment generation rates and without identification of the sources of sediment delivered to the reef prior to European settlement (c. 1850), determining the necessity and effectiveness of contemporary landscape management efforts ...
DOI:
10.1016/j.geomorph.2014.07.019

24. 10Be dating of the Kuitun River terraces in the northern Chinese Tian Shan foreland: Insights into fluvial evolution and tectonic shortening pattern

Author:
Lichen Pang; Honghua Lu; Yanwu Lü; Yutong Jiang; Dengyun Wu; Menghan Wu; Xiangmin Zheng; Youli Li
Source:
Geomorphology 2022 v.412 pp. 108317
ISSN:
0169-555X
Subject:
Holocene epoch; Pleistocene epoch; alluvial land; climate change; deformation; evolution; flight; piedmont; rivers; stream channels; tectonics; topography; Asia
Abstract:
... Characterizing active deformation of a piedmont structure is particularly helpful for understanding the dynamics of deformation of its adjacent active orogenic belt. This work focuses on fluvial geomorphology of the Kuitun River, which flows northwards out of the high mountains and perpendicularly cuts the E-W-striking Dushanzi anticline, a structure of the outermost fold-and-thrust belt in the no ...
DOI:
10.1016/j.geomorph.2022.108317

25. 10Be exposure dating of river terraces at the southern mountain front of the Dzungarian Alatau (SE Kazakhstan) reveals rate of thrust faulting over the past ~400ka

Author:
Anja Cording; Ralf Hetzel; Martin Kober; Jonas Kley
Source:
Quaternary research 2014 v.81 no.1 pp. 168-178
ISSN:
0033-5894
Subject:
global positioning systems; mountains; quartz; rivers; sand; terraces; Kazakhstan
Abstract:
... The mountain belts of the Dzungarian Alatau (SE Kazakhstan) and the Tien Shan are part of the actively deforming India–Asia collision zone but how the strain is partitioned on individual faults remains poorly known. Here we use terrace mapping, topographic profiling, and ¹⁰Be exposure dating to constrain the slip rate of the 160-km-long Usek thrust fault, which defines the southern front of the Dz ...
DOI:
10.1016/j.yqres.2013.10.016

26. 10Be-derived denudation rates from the Burdekin catchment: The largest contributor of sediment to the Great Barrier Reef

Author:
Jacky Croke; Rebecca Bartley; John Chappell; Jenet M. Austin; Keith Fifield; Stephen G. Tims; Chris J. Thompson; Takahisa Furuichi
Source:
Geomorphology 2015 v.241 pp. 122-134
ISSN:
0169-555X
Subject:
basins; models; nuclides; rivers; sediments; subwatersheds; water; Australia; Great Barrier Reef
Abstract:
... Terrestrial cosmogenic nuclides (TCNs) such as Beryllium-10 (¹⁰Be) are now routinely used to reconstruct erosional rates over tens of thousands of years at increasingly large basin scales (>100,000km²). In Australia, however, the approach and its assumptions have not been systematically tested within a single, large drainage basin. This study measures ¹⁰Be concentrations in river sediments from th ...
DOI:
10.1016/j.geomorph.2015.04.003

27. 11: Polygonum thunbergii Sieb. et Zucc. (Polygonaceae)

Author:
KAWANO, SHOICHI
Source:
Plant species biology 2008 v.23 no.3 pp. 222-227
ISSN:
0913-557X
Subject:
Persicaria thunbergii; Tabanidae; butterflies; cleistogamy; color; demography; floodplains; flowers; fruits; islands; lakes; life history; outbreeding; pollinators; ponds; rivers; seed dispersal; soil; stems; wetlands; Asia
Abstract:
... The life-history characteristics and demography of Polygonum thunbergii Sieb. et Zucc. (Polygonaceae) are described here. This is a typical annual species of the Polygonaceae, extending widely over wetlands in the lowlands of the Japanese Islands and in north-eastern Asia. A unique feature of P. thunbergii is that each individual plant possesses two reproductive systems, that is, chasmogamy and cl ...
DOI:
10.1111/j.1442-1984.2008.00226.x

28. 121 fixed-time laparoscopic oviductal artificial insemination (lo-ai) with frozen-thawed semen in pallas’ cats (otocolobus manul)

Author:
W. F. Swanson; H. L. Bateman; J. R. Herrick; L. A. Lyons; L. M. Vansandt
Source:
Reproduction, fertility, and development 2016 v.28 no.2 pp. 190-191
ISSN:
1031-3613
Subject:
Otocolobus manul; animal care; animal ovaries; artificial insemination; body weight; conception; equine chorionic gonadotropin; females; kittens; males; microsatellite repeats; oviducts; ovulation; paternity; placenta; pregnancy; progeny; relaxin; rivers; semen; spermatozoa; urine; zoos; Central Asia
Abstract:
... The Pallas’ cat, a small-sized felid native to Central Asia, is becoming increasingly threatened in the wild. Their ex situ conservation would benefit from effective assisted reproduction methods, especially AI using frozen semen. In our previous research, we showed that laparoscopic oviductal AI (LO-AI) with low numbers of freshly collected spermatozoa could be used to produce viable offspring in ...
DOI:
10.1071/RDv28n2Ab120

29. 129I Dispersion in Argentina: Concentrations in Fresh and Marine Water and Deposition Fluences in Patagonia

Author:
Negri Agustín E.; Fernández Niello Jorge O.; Wallner Anton; Arazi Andrés; Fifield Leslie K.; Tims Stephen G.
Source:
Environmental Science & Technology 2013 v.47 no.17 pp. 9693-9698
ISSN:
1520-5851
Subject:
biomass; burning; emissions; iodine; lakes; models; radionuclides; rivers; seawater; watersheds; Argentina; Atlantic Ocean
Abstract:
... Measurements of total iodine (I) and iodine-129 (¹²⁹I) concentrations in rivers and lakes of Argentina are presented. Their latitudinal distribution can be explained by taking into account their main sources (oceanic emissions and biomass burning for I, and atmospheric nuclear tests for ¹²⁹I), transport mechanisms, and fallout patterns. From the measured ¹²⁹I concentrations in the studied lakes, d ...
DOI:
10.1021/es400610h

30. 137Cs and 239+240Pu in the Bohai Sea of China: Comparison in distribution and source identification between the inner bay and the tidal flat

Author:
Qifan Zhuang; Guosheng Li; Fu Wang; Lizhu Tian; Xingyu Jiang; Kexing Zhang; Geng Liu; Shaoming Pan; Zhiyong Liu
Source:
Marine pollution bulletin 2019 v.138 pp. 604-617
ISSN:
0025-326X
Subject:
cesium; estuaries; mixing; radionuclides; rivers; sediments; soil conservation; water pollution; watersheds; China; Yangtze River; Yellow Sea
Abstract:
... We investigated artificial radionuclides (²³⁹⁺²⁴⁰Pu and ¹³⁷Cs) in surface sediments and sediment cores collected from the Bohai Bay and the tidal flat of the Liaodong Bay, China. Increasing trends for ²³⁹⁺²⁴⁰Pu activities and ²⁴⁰Pu/²³⁹Pu atom ratios (˃0.18) were observed from land to sea and from north to south in the Bohai Bay. This spatial pattern implied that the scavenging process between rive ...
DOI:
10.1016/j.marpolbul.2018.12.005

31. 137Cs and plutonium isotopes accumulation/retention in bottom sediments and soil in Lithuania: A case study of the activity concentration of anthropogenic radionuclides and their provenance before the start of operation of the Belarusian Nuclear Power Plant (NPP)

Author:
D. Marčiulionienė; B. Lukšienė; D. Montvydienė; O. Jefanova; J. Mažeika; R. Taraškevičius; R. Stakėnienė; R. Petrošius; E. Maceika; N. Tarasiuk; Z. Žukauskaitė; L. Kazakevičiūtė; M. Volkova
Source:
Journal of environmental radioactivity 2017 v.178-179 pp. 253-264
ISSN:
0265-931X
Subject:
case studies; cesium; detection limit; floodplains; isotopes; macrophytes; nuclear power; organic carbon; plutonium; power plants; provenance; radioactivity; radionuclides; rivers; sediment contamination; silt; soil; soil pollution; surface water; Belarus; Lithuania
Abstract:
... Knowledge of the background activity concentrations of anthropogenic radionuclides before the start of operations of the new nuclear facilities in Belarus is of great value worldwide. Inland water bodies in Lithuania (specifically the Neris River, the Nemunas River and the Curonian Lagoon) are near the site of the Belarusian NPP under construction and, for this reason, sediments and flooded soils ...
DOI:
10.1016/j.jenvrad.2017.07.024

32. 137Cs estimates of soil erosion rates in a small catchment on a channelized river floodplain in the lower reaches of Yangtze River, China

Author:
Xiaolei Wang; Bin Xue; Shuchun Yao; Hao Yang; Zhujun Gu; Benjun Yang; Mingli Zhang; Ying Zhu
Source:
Journal of environmental radioactivity 2019 v.208-209 pp. 106008
ISSN:
0265-931X
Subject:
Castanea mollissima; bamboos; cesium; channelization; floodplains; gardens; hills; inventories; land use; paddies; plantations; radionuclides; rivers; soil; soil erosion; tea; watersheds; woodlands; China; Yangtze River
Abstract:
... Channelization significantly affects soil erosion in river floodplains. The object of this study was to use 137Cs as a tracer to determine the 137Cs inventory and derived soil erosion rates under various land use types in a catchment on channelized river floodplain in the lower reaches of Yangtze River, China. Sampling was carried out to establish a137Cs reference inventory in a 70-year old paddy ...
DOI:
10.1016/j.jenvrad.2019.106008

33. 14-Month Water Quality Investigation of Coal Mine Discharge on Two Rivers in NSW, Australia: Implications for Environmental Regulation

Author:
Callum Fleming; Katherine Morrison; Leo Robba; Jason Reynolds; Ian A. Wright
Source:
Water, air, and soil pollution 2021 v.232 no.3 pp. 90
ISSN:
0049-6979
Subject:
air; aluminum; arsenic; coal; environmental law; governance; hydrochemistry; nickel; pH; rivers; soil pollution; total nitrogen; water; water pollution; water quality; zinc
Abstract:
... Ineffective environmental regulation of effluent discharged from an underground coal mine operation has enabled water pollution within two highly valued Australian rivers. This study investigated the impacts on water chemistry of the Bargo and Nepean rivers as a result of the continuous disposal of mine effluent from Tahmoor Colliery over a 14-month period. Coal mine effluent was saline (2180 μS/c ...
DOI:
10.1007/s11270-021-05020-7

34. 146 Fecal egg count reduction in juvenile and mature horses administered fenbendazole or moxidectin/praziquantel dewormer

Author:
R. Hoff; J. Haack; A. Konop; B. Fisher; M. DeBoer
Source:
Journal of equine veterinary science 2021 v.100 pp. 103609
ISSN:
0737-0806
Subject:
deworming; eggs; fecal egg count; fenbendazole; herds; horses; juveniles; moxidectin; parasites; praziquantel; rivers; veterinary medicine; Wisconsin
Abstract:
... Parasite resistance is a concern in horses and can be monitored by performing fecal egg counts (FECs). Unfortunately, FECs are not performed regularly, which could contribute to developing anthelmintic resistance as it may lead to deworming too frequently or not using an effective dewormer for the horse. This study aims to evaluate the ability of pellet and paste fenbendazole (FBZ) and a paste mox ...
DOI:
10.1016/j.jevs.2021.103609

35. 150 years of anthropogenic metal input in a Biosphere Reserve: the case study of the Cananéia–Iguape coastal system, Southeastern Brazil

Author:
Michel Michaelovitch de Mahiques; Rubens Cesar Lopes Figueira; Alexandre Barbosa Salaroli; Daniel Pavani Vicente Alves; Cristina Gonçalves
Source:
Environmental earth sciences 2013 v.68 no.4 pp. 1073-1087
ISSN:
1866-6280
Subject:
United Nations; case studies; gold; lead; mining; rivers; sediments; zinc; Brazil
Abstract:
... The Cananéia–Iguape system consists of a complex of estuarine and lagoonal channels located in the coastal region of southeastern Brazil known as Lagamar, a Biosphere Reserve recognized by the United Nations Educational, Scientific and Cultural Organization (UNESCO) in 1991. The area suffered dramatic environmental changes along the last ca. 150 years initiated by the 1852 opening of an artificial ...
DOI:
10.1007/s12665-012-1809-6

36. 15n‐nitrate signature in low‐order streams: effects of land cover and agricultural practices

Author:
S. Lefebvre; J.-C. Clément; G. Pinay; C. Thenail; P. Durand; P. Marmonier
Source:
Ecological applications 2007 v.17 no.8 pp. 2333-2346
ISSN:
1051-0761
Subject:
vegetation cover; anthropogenic activities; grasslands; stable isotopes; forests; agricultural watersheds; water analysis; forested watersheds; nitrate nitrogen; groundwater contamination; nitrification; denitrification; microbial activity; nitrogen fertilizers; prediction; rivers; nitrogen; geographic information systems; intensive cropping; streams; pollution load; environmental indicators; nitrates; France
Abstract:
... Many studies have shown that intensive agricultural practices significantly increase the nitrogen concentration of stream surface waters, but it remains difficult to identify, quantify, and differentiate between terrestrial and in‐stream sources or sinks of nitrogen, and rates of transformation. In this study we used the δ¹⁵N‐NO₃ signature in a watershed dominated by agriculture as an integrating ...
DOI:
10.1890/06-1496.1
PubMed:
18213973

37. 16s rRNA metagenomic analysis reveals predominance of Crtl and CruF genes in Arabian Sea coast of India

Author:
Jamseel Moopantakath; Madangchanok Imchen; Busi Siddhardha; Ranjith Kumavath
Source:
Science of the total environment 2020 v.743 pp. 140699
ISSN:
0048-9697
Subject:
Crenarchaeota; Methanobacteria; Methanococci; Methanomicrobia; ammonia; biosynthesis; carotenoids; coasts; environment; estuaries; genes; lakes; mangrove sediments; metagenomics; methane; microbial communities; rivers; sulfur; Arabian Sea; India
Abstract:
... Microbial communities perform crucial biogeochemical cycles in distinct ecosystems. Halophilic microbial communities are enriched in the saline areas. Hence, haloarchaea have been primarily studied in salterns and marine biosystems with the aim to harness haloarcheal carotenoids biosynthesis. In this study, sediment from several distinct biosystems (mangrove, seashore, estuary, river, lake, salt p ...
DOI:
10.1016/j.scitotenv.2020.140699

38. 18O and 2H in streamflow across Canada

Author:
J.J. Gibson; T. Holmes; T.A. Stadnyk; S.J. Birks; P. Eby; A. Pietroniro
Source:
Journal of hydrology 2020 v.32 pp. 100754
ISSN:
2214-5818
Subject:
drainage; isotope labeling; models; mountains; permafrost; regression analysis; rivers; stream flow; uncertainty; Arctic region; Canada
Abstract:
... Water samples for isotopic analysis were collected during 2013–2019 at 331 gauging stations across Canada in representative watersheds ranging from the Atlantic to the Pacific to the Arctic Oceans. Drainage area coverage of the network included 56 % of Canada’s landmass (9,984,670 km²) and was representative of 91 % of Canada’s annual water yield.Baseline data, including 4603 ¹⁸O and ²H analyses, ...
DOI:
10.1016/j.ejrh.2020.100754

39. 18S rRNA Analysis Reveals High Diversity of Phytoplankton with Emphasis on a Naked Dinoflagellate Gymnodinium sp. at the Han River (Korea)

Author:
Buhari Lawan Muhammad; Taehee Kim; Jang-Seu Ki
Source:
Diversity 2021 v.13 no.2 pp. -
ISSN:
1424-2818
Subject:
Gymnodinium; Stephanodiscus; autumn; environmental monitoring; freshwater; microscopy; phytoplankton; quantitative polymerase chain reaction; rivers; spring; toxicity; water quality; winter; Korean Peninsula
Abstract:
... Biomonitoring of phytoplankton communities in freshwater ecosystems is imperative for efficient water quality management. In the present study, we present the seasonal diversity of phytoplankton from the non-reservoir area of the Han River (Korea), assessed using the 18S rRNA amplicon sequencing. Our results uncovered a considerably high eukaryotic diversity, which was predominantly represented by ...
DOI:
10.3390/d13020073

40. 18S rRNA gene sequencing reveals significant influence of anthropogenic effects on microeukaryote diversity and composition along a river-to-estuary gradient ecosystem

Author:
Hangzhou Xu; Shasha Zhang; Guangxiang Ma; Yanfang Zhang; Yizhen Li; Haiyan Pei
Source:
Science of the total environment 2020 v.705 pp. 135910
ISSN:
0048-9697
Subject:
agricultural land; anthropogenic activities; biogeography; community structure; dissolved oxygen; environmental factors; fertilizer application; functional diversity; lotic systems; nutrients; oxygen; pesticides; phytoplankton; pollution; ribosomal RNA; rivers; salinity; sequence analysis; turbidity; wastewater; zooplankton; China; Yellow Sea
Abstract:
... Microeukaryotes play key roles in the structure and functioning of lotic ecosystems; however, little is known about the relative importance of the processes that drive planktonic microeukaryotic biogeography in rivers, especially the effects of anthropogenic inputs (e.g., wastewater discharge and pesticide and fertilizer use) on the taxonomic and functional diversity of microeukaryotes. Herein 18S ...
DOI:
10.1016/j.scitotenv.2019.135910

41. 1980s population-specific compositions of two related anadromous shad species during the oceanic phase determined by microchemistry of archived otoliths

Author:
David José Nachón; Gilles Bareille; Hilaire Drouineau; Hélène Tabouret; Catherine Taverny; Catherine Boisneau; Sylvain Berail; Christophe Pécheyran; Fanny Claverie; Françoise Daverat
Source:
Canadian journal of fisheries and aquatic sciences 2020 v.77 no.1 pp. 164-176
ISSN:
1205-7533
Subject:
Alosa alosa; Alosa fallax; Bayesian theory; anadromous fish; geology; juveniles; marine environment; otoliths; river plume; rivers; shad
Abstract:
... The specific stock composition and dispersion of anadromous fish species aggregations in the marine environment are poorly known, while they can play a major role in the metapopulation dynamics. Otolith microchemistry has proven to be a powerful tool to address natal origins of anadromous fish. We used archived otolith microchemistry to investigate the population-specific composition of subadult E ...
DOI:
10.1139/cjfas-2018-0444

42. 1D finite volume model of unsteady flow over mobile bed

Author:
Shiyan Zhang; Jennifer G. Duan
Source:
Journal of hydrology 2011 v.405 no.1-2 pp. 57-68
ISSN:
0022-1694
Subject:
algorithms; alluvium; equations; floods; rivers; sediment transport; simulation models; surface water; transient flow; Arizona
Abstract:
... A one dimensional (1D) finite volume method (FVM) model was developed for simulating unsteady flow, such as dam break flow, and flood routing over mobile alluvium. The governing equation is the modified 1D shallow water equation and the Exner equation that take both bed load and suspended load transport into account. The non-equilibrium sediment transport algorithm was adopted in the model, and th ...
DOI:
10.1016/j.jhydrol.2011.05.010

43. 2,3,7,8-Tetrachlorodibenzo-p-dioxin Dechlorination is Differentially Enhanced by Dichlorobenzene Amendment in Passaic River, NJ Sediments

Author:
Rachel K. Dean; Cassidy R. Schneider; Haider S. Almnehlawi; Katherine S. Dawson; Donna E. Fennell
Source:
Environmental science & technology 2020 v.54 no.13 pp. 8380-8389
ISSN:
1520-5851
Subject:
DCB (herbicide); Dehalococcoidia; dechlorination; dichlorobenzene; enrichment culture; environmental science; inoculum; phylotype; rivers; sediments; technology; tetrachlorodibenzo-p-dioxin; toxicity; New Jersey
Abstract:
... Polychlorinated dibenzo-p-dioxins (PCDDs) are a class of toxic organic compounds released by a number of industrial processes. Sediments of the Passaic River in New Jersey are contaminated by these compounds. To explore the ability of native organohalide respiring bacteria to dechlorinate PCDDs, we first enriched bacteria from sediments of the Passaic River on two organohalides, trichloroethene (T ...
DOI:
10.1021/acs.est.0c00876

44. 2,4,6,8-Tetrachlorodibenzothiophene in the Newark Bay Estuary: The likely source and reaction pathways

Author:
Robert Parette; Wendy N. Pearson
Source:
Chemosphere 2014 v.111 pp. 157-163
ISSN:
0045-6535
Subject:
2,4-D; 2,4-dichlorophenol; chlorination; estuaries; phenol; pollution; rivers
Abstract:
... Historic industrial activity along the Newark Bay Estuary has resulted in pollution from a number of contaminants; one of which is 2,4,6,8-tetrachlorodibenzothiophene (2,4,6,8-TCDT), a unique chemical contaminant whose origins have not been adequately explained. This research demonstrates that the probable source of 2,4,6,8-TCDT was the chlorination of phenol produced via the sulfonation method. T ...
DOI:
10.1016/j.chemosphere.2014.03.076

45. 2,4-Dichlorophenoxyacetic acid (2,4-D) biodegradation in river sediments of Northeast-Scotland and its effect on the microbial communities (PLFA and DGGE)

Author:
Chinalia, F.A.; Killham, K.S.
Source:
Chemosphere 2006 v.64 no.10 pp. 1675-1683
ISSN:
0045-6535
Subject:
denaturing gradient gel electrophoresis; sediment contamination; rivers; fatty acid composition; pesticide residues; species diversity; biodegradation; 2,4-D; oxygenases; bacteria; phospholipids; Scotland
DOI:
10.1016/j.chemosphere.2006.01.022
PubMed:
16488464

46. 2,6-Dichloro-1,4-benzoquinone formation from chlorination of substituted aromatic antioxidants and its control by pre-ozonation in drinking water treatment plant

Author:
Rongrong Qiao; Shiqi Liang; Chunjing Chen; Lilin Xiong; Qiangdong Guan; Li Wang; Zhiqiang Fu; Yang Pan; Haozhe Liu; Jun Zhu; Yechen Hu; Lei Li; Guang Huang
Source:
Chemosphere 2022 v.299 pp. 134498
ISSN:
0045-6535
Subject:
absorbance; activated carbon; chlorination; chlorine; disinfection; dissolved organic carbon; hydrolysis; oxidation; quartz; risk; rivers; sand; toxicity; water quality
Abstract:
... Halobenzoquinones are frequently detected as disinfection by-products in drinking water. Among identified halobenzoquinones, 2,6-dichloro-1,4-benzoquinone (2,6-DCBQ) is particularly toxic and is frequently detected in drinking water. Synthetic aromatic antioxidants discharged to source water may increase the risk of 2,6-DCBQ formation, as many studies suggest that aromatic compounds are the most l ...
DOI:
10.1016/j.chemosphere.2022.134498

47. 2-Methylisoborneol (2-MIB) Excretion by Pseudanabaena yagii under Low Temperature

Author:
Ju-Yong Jeong; Sang-Hoon Lee; Mi-Ra Yun; Seung-Eun Oh; Kyong-Hee Lee; Hee-Deung Park
Source:
Microorganisms 2021 v.9 no.12 pp. -
ISSN:
2076-2607
Subject:
2-methylisoborneol; Pseudanabaena; autumn; excretion; freshwater; genes; odors; phylogeny; rivers; sequence homology; temperature; water distribution; South Korea
Abstract:
... Outbreaks of 2-methylisoborneol (2-MIB) contamination in drinking water sources cause inconvenient odor issues in the water distribution system. In this study, microscopy-based isolation with physiological and molecular phylogenetic characterization were performed to investigate and characterize the 2-MIB odor producers that caused an odor problem in the freshwater system of the North Han River in ...
DOI:
10.3390/microorganisms9122486

48. 2008–2017 Bogota River Water Quality Assessment Based on the Water Quality Index

Author:
Daissy Milena Díaz-Casallas; Mario Fernando Castro-Fernández; Elvira Bocos; Carlos Enrique Montenegro-Marin; Rubén González Crespo
Source:
Sustainability 2019 v.11 no.6 pp. -
ISSN:
2071-1050
Subject:
aquatic ecosystems; basins; effluents; government agencies; issues and policy; meteorology; monitoring; river water; rivers; sustainable development; wastewater treatment; water pollution; water quality; watersheds; Colombia
Abstract:
... This article provides a deep analysis of the water quality at the upper basin of the Bogota River (Colombia) between 2008 and 2017. The Water Quality Index has been the indicator employed to determine the ecological status of the river. This index was chosen in order to normalize the analysis, given that it is commonly used by the Institute of Hydrology, Meteorology and Environmental Studies, a go ...
DOI:
10.3390/su11061668

49. 20th century sediment budget trends on the Western Gulf of Lions shoreface (France): An application of an integrated method for the study of sediment coastal reservoirs

Author:
C. Brunel; R. Certain; F. Sabatier; N. Robin; J.P. Barusseau; N. Aleman; O. Raynal
Source:
Geomorphology 2014 v.204 pp. 625-637
ISSN:
0169-555X
Subject:
climate change; coasts; engineering; geophysics; humans; lidar; littoral zone; rivers; sand; sediment transport; surveys; France; Mediterranean Sea
Abstract:
... This paper presents a shoreface sediment budget established for the 20th century (1895–1984–2009) along the microtidal wave-dominated coast of the western Gulf of Lions (Languedoc-Roussillon, Mediterranean Sea, SE France). The implementation of a diachronic bathymetric approach, coupled with the definition of sand reservoirs (upper sand unit — USU) by very high-resolution seismic surveys and the r ...
DOI:
10.1016/j.geomorph.2013.09.009

50. 210Pb dating to investigate the historical variations and identification of different sources of heavy metal pollution in sediments of the Pearl River Estuary, Southern China

Author:
Zhiping Ye; Jianyao Chen; Lei Gao; Zuobing Liang; Shaoheng Li; Rui Li; Guangzhe Jin; Yuta Shimizu; Shin-ichi Onodera; Mitsuyo Saito; Gnanachandrasamy Gopalakrishnan
Source:
Marine pollution bulletin 2020 v.150 pp. 110670
ISSN:
0025-326X
Subject:
economic development; estuaries; heavy metals; lead; marine pollution; river deltas; rivers; sewage; China
Abstract:
... In this study, we investigated the historical variation, source identification, and distribution of heavy metal pollution in sediments of the Pearl River Estuary (PRE) using ²¹⁰Pb dating. Our results suggest that the heavy metal concentrations were higher in the western part of the estuary. For all heavy metals, Cd was significantly enriched in the sediments. The Pearl River Delta (PRD) has experi ...
DOI:
10.1016/j.marpolbul.2019.110670

51. 234U/238U signatures associated with uranium ore bodies: part 2 Manyingee

Author:
Richard T. Lowson; Mark G. McIntyre
Source:
Journal of environmental radioactivity 2013 v.118 pp. 157-162
ISSN:
0265-931X
Subject:
aquifers; groundwater; leaching; rivers; sandstone; sediments; uranium
Abstract:
... The Manyingee ore body is a roll-front U ore body located at depth in the Cretaceous sandstone sediments of a Proterozoic palaeo valley. It is located in a confined aquifer. The aquifer is recharged 4 km upstream by the Ashburton River. Groundwater samples were collected at and up to 4.7 km downstream of the ore body. The ground water 234U/238U activity ratios (AR) were elevated to 1.86 in the vic ...
DOI:
10.1016/j.jenvrad.2012.10.006

52. 236U and radiocesium in river bank soil and river sediment in Fukushima Prefecture, after the Fukushima Daiichi Nuclear Power Plant accident

Author:
Guosheng Yang; M. Safiur Rahman; Hirofumi Tazoe; Jun Hu; Yang Shao; Masatoshi Yamada
Source:
Chemosphere 2019 v.225 pp. 388-394
ISSN:
0045-6535
Subject:
accidents; cesium; databases; monitoring; nuclear power; power plants; radionuclides; riparian soils; rivers; sediments; soil sampling; tandem mass spectrometry; uranium
Abstract:
... Almost 8 years after the Japanese Fukushima Daiichi Nuclear Power Plant (FDNPP) accident, data for 236U and 236U/238U have mainly remained limited to only a few heavily contaminated samples. In the present study, activities of 236U, 134Cs, and 137Cs, along with 234U, 235U, 238U, in 15 river bank soil and 10 river sediment samples, were measured by ICP-MS/MS and γ spectrometry. The 134Cs activities ...
DOI:
10.1016/j.chemosphere.2019.03.061

53. 238U/235U isotope ratios of crustal material, rivers and products of hydrothermal alteration: new insights on the oceanic U isotope mass balance

Author:
Janine Noordmann; Stefan Weyer; R. Bastian Georg; Svenja Jöns; Mukul Sharma
Source:
Isotopes in Environmental and Health Studies 2016 v.52 no.1-2 pp. 141-163
ISSN:
1477-2639
Subject:
calcium carbonate; isotope fractionation; isotopes; models; oceans; radionuclides; rivers; rocks; seawater; uranium; watersheds; weathering; Alps region; Switzerland
Abstract:
... In this study, the U isotope composition, n (²³⁸U)/ n (²³⁵U), of major components of the upper continental crust, including granitic rocks of different age and post-Archaean shales, as well as that of rivers (the major U source to the oceans) was investigated. Furthermore, U isotope fractionation during the removal of U at mid-ocean ridges, an important sink for U from the oceans, was investigated ...
DOI:
10.1080/10256016.2015.1047449

54. 2D Electrical resistivity imaging for geothermal groundwater characterization and rejuvenation of the Gaurikund hot spring in the Main Central Thrust (MCT) zone of the Garhwal Himalaya, Uttrakhand, India

Author:
Somvir Singh; Param K. Gautam; Debasish Bagchi; Sashikant Singh; Sushil Kumar; Suresh Kannaujiya
Source:
Groundwater for sustainable development 2021 v.15 pp. 100686
ISSN:
2352-801X
Subject:
electrical resistance; groundwater; groundwater flow; hot springs; rivers; spring; sustainable development; water temperature; Himalayan region; India
Abstract:
... Gaurikund is a famous geothermal spring near the Kedarnath Dham in the central Himalaya, Uttarakhand, India. During the Kedarnath Disaster in 2013, the thermal spring and most of the areas surrounding the Kedarnath temple lies ruined and covered by debris. In the present study, an effort has been made to image the debris covered source of the geothermal groundwater potential zones for rejuvenating ...
DOI:
10.1016/j.gsd.2021.100686

55. 2D Finite Element Inundation Modelling in Anabranching Channels with Sparse Data: Examination of Uncertainties

Author:
Joy Sanyal; Alexander L. Densmore; Patrice Carbonneau
Source:
Water resources management 2014 v.28 no.8 pp. 2351-2366
ISSN:
0920-4741
Subject:
developing countries; islands; model validation; models; prediction; rivers; uncertainty
Abstract:
... Flood inundation modelling in developing countries is severely limited by the lack of high resolution terrain data and suitable imagery to map flood extents. This study assessed the predictive uncertainty of modelled flood extents generated from TELEMAC2D model using low-cost, sparse input data commonly available in developing countries. We studied a river reach characterised by anabranching chann ...
DOI:
10.1007/s11269-014-0619-x

56. 2D numerical simulation of unsteady flows for large scale floods prediction in real time

Author:
I. Echeverribar; M. Morales-Hernández; P. Brufau; P. García-Navarro
Source:
Advances in water resources 2019 v.134 pp. 103444
ISSN:
0309-1708
Subject:
floods; hydrologic models; mathematical models; prediction; rivers; topography; Italy; Spain
Abstract:
... The challenge of finding a compromise between computational time and level of accuracy and robustness has traditionally expanded the use simplified models rather than full two-dimensional (2D) models for flood simulation. This work presents a GPU accelerated 2D shallow water model for the simulation of flood events in real time. In particular, an explicit first-order finite volume scheme is detail ...
DOI:
10.1016/j.advwatres.2019.103444

57. 2α-Methylhopane: Indicator for Oil–Source Correlation in the Pearl River Mouth Basin, China

Author:
Wanfeng Zhang; Xiangtao Jiang; Liling Pang; Xuanbo Gao; Shukui Zhu
Source:
Aquatic geochemistry 2017 v.23 no.3 pp. 185-198
ISSN:
1380-6165
Subject:
autotrophs; basins; biomarkers; comprehensive two-dimensional gas chromatography; mass spectrometry; oils; petroleum; rivers; rocks; China
Abstract:
... Oil samples collected from the Pearl River Mouth Basin (PRMB) were analyzed using comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry (GC × GC-TOFMS). High abundances of compounds in the 2α-methylhopane series were observed and accurately quantified. Although the 2α-methylhopane series can be a prominent biomarker in the oil and source rock samples, it ha ...
DOI:
10.1007/s10498-017-9317-7

58. 3-D dam break flow simulations in simplified and complex domains

Author:
Daniel Horna Munoz; George Constantinescu
Source:
Advances in water resources 2020 v.137 pp. 103510
ISSN:
0309-1708
Subject:
flood control; floods; prediction; rivers; simulation models; water flow; Iowa
Abstract:
... This paper presents a 3-D, non-hydrostatic, Reynolds-Averaged Navier-Stokes (RANS) model using the volume of fluid (VOF) approach to simulate dam-break flows. Good agreement is observed between the 3-D model predictions and results of dam-break experiments performed in the laboratory. The 3-D model is then applied to predict flood-wave propagation induced by the sudden failure of two flood-protect ...
DOI:
10.1016/j.advwatres.2020.103510

59. 3-D spatial hedonic modelling: Environmental impacts of polluted urban river in a high-rise apartment market

Author:
Xun Li; Wendy Y. Chen; Frankie Hin Ting Cho
Source:
Landscape and urban planning 2020 v.203 pp. 103883
ISSN:
0169-2046
Subject:
hybrids; landscapes; markets; model validation; models; residential areas; residential housing; rivers; spatial variation; China
Abstract:
... The vertical dimension of the residential apartment market has been largely overlooked in spatial hedonic studies. To adequately quantify the environmental impacts brought by various urban natural elements on apartment prices using spatial hedonic models, the selection of an appropriate weights matrix, which could adequately approximate complex spatial relationship amongst apartment units in high- ...
DOI:
10.1016/j.landurbplan.2020.103883

60. 30 years of data reveal dramatic increase in abundance of brown trout following the removal of a small hydrodam

Author:
Kim Birnie-Gauvin; Martin H. Larsen; Jan Nielsen; Kim Aarestrup
Source:
Journal of environmental management 2017 pp. -
ISSN:
0301-4797
Subject:
Salmo trutta; dams (hydrology); fish communities; freshwater ecosystems; habitats; humans; rivers; spawning; surveys; trout; vegetation; water flow; Denmark
Abstract:
... Humans and freshwater ecosystems have a long history of cohabitation. Today, nearly all major rivers of the world have an in-stream structure which changes water flow, substrate composition, vegetation, and fish assemblage composition. The realization of these effects and their subsequent impacts on population sustainability and conservation has led to a collective effort aimed to find ways to mit ...
DOI:
10.1016/j.jenvman.2017.09.022

61. 30 years of large river restoration: How long do restored floodplain channels remain suitable for targeted rheophilic fishes in the lower river Rhine?

Author:
T. Stoffers; F.P.L. Collas; A.D. Buijse; G.W. Geerling; L.H. Jans; N. van Kessel; J.A.J. Verreth; L.A.J. Nagelkerke
Source:
Science of the total environment 2021 v.755 pp. 142931
ISSN:
0048-9697
Subject:
ecological function; environment; fish; fish communities; floodplains; habitats; humans; rheophilic species; rivers; species richness; surface water; Rhine River
Abstract:
... The ecological efficacy of river restoration projects may change over time, resulting in the loss of their ecological function for targeted species. The goal of this study was to evaluate the rheophilic nursery function of restored floodplain channels over time, by analysing 30 years of monitoring data from 12 restoration projects in the lower river Rhine. We hypothesised that the nursery function ...
DOI:
10.1016/j.scitotenv.2020.142931

62. 3000 years of agriculture in a valley of the High Himalayas

Author:
Karl-Heinz Knörzer
Source:
Vegetation history and archaeobotany 2000 v.9 no.4 pp. 219-222
ISSN:
0939-6314
Subject:
altitude; fruits; immigration; lowlands; rivers; sampling; seeds; vegetation; Europe; Himalayan region; Nepal
Abstract:
... 3000 years of agriculture were investigated in the valley of the Jhong river situated north of the main chain of the Himalayas in western Nepal at 3000–4000 m asl. During excavations carried out by the Institute for Prehistory of the University of Cologne (part of the DFG-Schwerpunktprogramm „Siedlungen und Staatenbildungen im tibetischen Himalaya”) in collaboration with the Nepal Department of Ar ...
DOI:
10.1007/BF01294636

63. 300MW Baspa II — India's largest private hydroelectric facility on top of a rock avalanche-dammed palaeo-lake (NW Himalaya): Regional geology, tectonic setting and seismicity

Author:
Erich Draganits; Bernhard Grasemann; Christoph Janda; Christian Hager; Alexander Preh
Source:
Engineering geology 2014 v.169 pp. 14-29
ISSN:
0013-7952
Subject:
Miocene epoch; deformation; earthquakes; engineering; geophysics; lacustrine sediments; liquefaction; mass movement; rivers; tectonics; Himalayan region; India
Abstract:
... This study aims for the characterization of the geological setting of 300MW Baspa II, India's largest private hydroelectric facility which was built on top of a relict rock avalanche dammed palaeo-lake (Baspa Valley, NW Himalaya). Geologically, the hydroelectric installation is located in the Higher Himalayan Crystalline, just above the active Karcham Normal Fault, which is reactivating the Early ...
DOI:
10.1016/j.enggeo.2013.11.009

64. 36Cl exposure dating of the Mahu Giant landslide (Sichuan Province, China)

Author:
Yulong Cui; Jianhui Deng; Wanyu Hu; Chong Xu; Hua Ge; Jinbing Wei; Jun Zheng
Source:
Engineering geology 2021 v.285 pp. 106039
ISSN:
0013-7952
Subject:
bedrock; case studies; earthquakes; hazard characterization; landslides; lithology; risk; rivers; China
Abstract:
... Age is of great significance to understanding the causes of landslide instability and movement, and therefore, it is important to know when conducting a hazard assessment. To date, no detailed and comprehensive determination of the age of the Mahu giant landslide has been conducted. The Mahu giant landslide is located in the lower reaches of the Jinsha River and has a volume of 2.38 km³ and a maxi ...
DOI:
10.1016/j.enggeo.2021.106039

65. 36year trends in dissolved organic carbon export from Finnish rivers to the Baltic Sea

Author:
Antti Räike; Pirkko Kortelainen; Tuija Mattsson; David N. Thomas
Source:
Science of the total environment 2012 v.435-436 no. pp. 188-201
ISSN:
0048-9697
Subject:
peat; rivers; lakes; exports; streams; water flow; latitude; dissolved organic carbon; land cover; watersheds; land use; Baltic Sea; Finland
Abstract:
... Increasing dissolved organic carbon (DOC) concentrations in lakes, rivers and streams in northern mid latitudes have been widely reported during the last two decades, but relatively few studies have dealt with trends in DOC export. We studied the export of DOC from Finnish rivers to the Baltic Sea between 1975 and 2010, and estimated trends in DOC fluxes (both flow normalised and non-normalised). ...
DOI:
10.1016/j.scitotenv.2012.06.111
PubMed:
22854090

66. 3D CFD Modeling of Local Scouring, Bed Armoring and Sediment Deposition

Author:
Gergely T. Török; Sándor Baranya; Nils Rüther
Source:
Water 2017 v.9 no.1 pp. -
ISSN:
2073-4441
Subject:
bedload; empirical models; laboratory experimentation; model validation; rivers; sediment deposition; sediment transport
Abstract:
... 3D numerical models are increasingly used to simulate flow, sediment transport and morphological changes of rivers. For the simulation of bedload transport, the numerical flow model is generally coupled with an empirical sediment transport model. The application range of the most widely used empirical models is, however, often limited in terms of hydraulic and sedimentological features and therefo ...
DOI:
10.3390/w9010056

67. 3D Layer-Integrated Modelling of Morphodynamic Processes Near River Regulated Structures

Author:
S. Faghihirad; B. Lin; R. A. Falconer
Source:
Water resources management 2017 v.31 no.1 pp. 443-460
ISSN:
0920-4741
Subject:
algorithms; equations; gates; hydraulic structures; hydrodynamics; models; momentum; rivers; sediment transport; sediments; suspended sediment
Abstract:
... Sedimentation and erosion can significantly affect the performance of river regulated reservoirs. In the vicinity of flow control structures, the interaction between the hydrodynamics and sediment transport often induces complex morphological processes. It is generally very challenging to accurately predict these morphological processes in real applications. Details are given of the refinement and ...
DOI:
10.1007/s11269-016-1537-x

68. 3D alluvial aquifer reconstruction in polluted areas by means of GPR (Sabiñánigo, N Spain)

Author:
Ó. Pueyo Anchuela; J. F. Ipas-Lloréns; H. Gil Garbí; A. M. Casas-Sainz; A. Pocoví Juan; M. L. Garijo; J. G. Fernández-Martos; J. Fernández-Cascán
Source:
Environmental earth sciences 2014 v.72 no.11 pp. 4291-4302
ISSN:
1866-6280
Subject:
alluvium; aquifers; chemical industry; chlorination; ground-penetrating radar; groundwater; industrialization; models; monitoring; pesticides; rivers; surveys; terraces; water flow; water table; Spain
Abstract:
... Assumptions of simple geometries for alluvial deposits (related to main rivers) can preclude determination of complexities that are revealed as fundamental controls in underground flow. Although subhorizontal contacts between alluvial and substratum materials are expected, previous sedimentary or erosional processes can result in irregular geometries, only accessible through detailed analysis. The ...
DOI:
10.1007/s12665-014-3326-2

69. 3D conservation planning: Including aquifer protection in freshwater plans refines priorities without much additional effort

Author:
Simon Linke; Eren Turak; Maria Gulbrandsen Asmyhr; Grant Hose
Source:
Aquatic conservation 2019 v.29 no.7 pp. 1063-1072
ISSN:
1052-7613
Subject:
aquatic ecosystems; aquatic organisms; aquifers; computer software; freshwater; groundwater; groundwater recharge; models; planning; rivers; surface area; wetlands; New South Wales
Abstract:
... Groundwater has very rarely been included in modern systematic conservation planning methods that identify key areas for protection of aquatic organisms. Three conservation plans were developed for aquatic ecosystems in the Hunter Valley, NSW, Australia using the planning software Marxan: one model for rivers and wetlands and two that consider groundwater ecosystems. The first of these groundwater ...
DOI:
10.1002/aqc.3129

70. 3D float tracking: in situ floodplain roughness estimation

Author:
Straatsma, Menno
Source:
Hydrological processes 2009 v.23 no.2 pp. 201-212
ISSN:
0885-6087
Subject:
equations; floodplains; floods; rivers; roughness; stream flow; topography; vegetation cover
Abstract:
... This paper presents a novel technique to quantify in situ hydrodynamic roughness of submerged floodplain vegetation: 3D float tracking. This method uses a custom-built floating tripod that is released on the inundated floodplain and tracked from shore by a robotic total station. Simultaneously, an acoustic Doppler current profiler (ADCP) collects flow velocity profiles and water depth data. Roughn ...
DOI:
10.1002/hyp.7147

71. 3D modelling of non-uniform and turbulent flow in vertical slot fishways

Author:
J.F. Fuentes-Pérez; A.T. Silva; J.A. Tuhtan; A. García-Vega; R. Carbonell-Baeza; M. Musall; M. Kruusmaa
Source:
Environmental modelling & software 2018 v.99 pp. 156-169
ISSN:
1364-8152
Subject:
computer software; environmental models; freshwater fish; hydrology; migratory behavior; raceways; rivers; turbulent flow
Abstract:
... Global stocks of freshwater fish have been on the decline for decades, driven in part by the obstruction of their migration routes by anthropogenic barriers. To mitigate such impacts, fishways have been developed to facilitate bidirectional fish migration. These structures are affected by the hydrological variability of rivers, which can cause changes in the up and downstream boundary conditions o ...
DOI:
10.1016/j.envsoft.2017.09.011

72. 3D numerical modelling of a willow vegetated river/floodplain system

Author:
Wilson, C.A.M.E.; Yagci, O.; Rauch, H.P.; Olsen, N.R.B.
Source:
Journal of hydrology 2006 v.327 no.1-2 pp. 13-21
ISSN:
0022-1694
Subject:
mathematical models; rivers; stream flow; Salix fragilis; equations; floods; Salix alba; floodplains; riparian areas; hydrologic models
Abstract:
... Using a three-dimensional finite volume code with standard k-ε turbulence closure the hydraulic impact of willow stands (Salix alba and Salix fragilis) on the velocity distribution was modelled. The additional hydraulic resistance of the willow stands was modelled separately to the bed resistance using a drag force term that was introduced into the Navier-Stokes equations. Two flood events of vary ...
DOI:
10.1016/j.jhydrol.2005.11.027

73. 3D numerical modelling of braided channel formation

Author:
Nils Reidar B. Olsen
Source:
Geomorphology 2021 v.375 pp. 107528
ISSN:
0169-555X
Subject:
algorithms; evolution; geometry; geomorphology; hydraulic flumes; mathematical models; rivers; sediment transport; sediments; water flow
Abstract:
... A numerical model was used to compute the formation of a braided channel system. The model calculated the water flow field from the fully 3D Navier-Stokes equations on a non-orthogonal unstructured adaptive grid. The sediment transport was computed from the Engelund-Hansen formula. A free surface algorithm based on local pressure gradients was used. The model was applied to an idealized geometry o ...
DOI:
10.1016/j.geomorph.2020.107528

74. 3D terrestrial lidar data classification of complex natural scenes using a multi-scale dimensionality criterion: Applications in geomorphology

Author:
N. Brodu; D. Lague
Source:
ISPRS journal of photogrammetry and remote sensing 2012 v.68 no. pp. 121-134
ISSN:
0924-2716
Subject:
cliffs; gravel; lidar; rivers; rockfalls; streams; surface water; vegetation types
Abstract:
... 3D point clouds of natural environments relevant to problems in geomorphology (rivers, coastal environments, cliffs,…) often require classification of the data into elementary relevant classes. A typical example is the separation of riparian vegetation from ground in fluvial environments, the distinction between fresh surfaces and rockfall in cliff environments, or more generally the classificatio ...
DOI:
10.1016/j.isprsjprs.2012.01.006

75. 3D transient numerical flow simulation of groundwater bypass seepage at the dam site of Dongzhuang hydro-junction

Author:
Tong Jiang; Junran Zhang; Weifeng Wan; Shuai Cui; Dongpin Deng
Source:
Engineering geology 2017 v.231 pp. 176-189
ISSN:
0013-7952
Subject:
engineering; groundwater; groundwater flow; karsts; mathematical models; permeability; rivers; seepage
Abstract:
... Hydrogeological conditions at the Dongzhuang Hydro-Junction site are complex and include underground water divides, a hanging river and hydraulic drops along faults. The site suffers from seepage because of its location in karst terrain. This study addresses dam bypass leakage at the Dongzhuang site and deficiencies in the regional groundwater seepage model. A hydrological conceptual model is gene ...
DOI:
10.1016/j.enggeo.2017.10.022

76. 3D-Printed Magnetic Stirring Cages for Semidispersive Extraction of Bisphenols from Water Using Polymer Micro- and Nanofibers

Author:
Ivana H. Šrámková; Burkhard Horstkotte; Jakub Erben; Jiří Chvojka; František Švec; Petr Solich; Dalibor Šatínský
Source:
Analytical chemistry 2020 v.92 no.5 pp. 3964-3971
ISSN:
1520-6882
Subject:
cages; chemical species; detection limit; experimental design; high performance liquid chromatography; lactones; lakes; magnetism; methanol; mixing; nanofibers; polypropylenes; river water; rivers; solid phase extraction; sorbents; surface water; three-dimensional printing; water pollution
Abstract:
... A magnetic stirring device allowing semidispersive solid phase extraction of eight bisphenols (A, AF, AP, C, BP, G, M, and Z) from river waters using polymer nano- and microfibers followed by HPLC with spectrophotometric detection has been developed and applied. About 50 mg of fibers was placed in a round, cage-like housing consisting of two identical 3D printed pieces that were locked together by ...
DOI:
10.1021/acs.analchem.9b05455

77. 3D–3D Computations on Submerged-Driftwood Motions in Water Flows with Large Wood Density around Driftwood Capture Facility

Author:
Ichiro Kimura; Taeun Kang; Kazuo Kato
Source:
Water 2021 v.13 no.10 pp. -
ISSN:
2073-4441
Subject:
anisotropy; friction; laboratory experimentation; mathematical models; rain; rivers; roughness; specific gravity; stream channels; turbulent flow; water; water flow; wood; wood density
Abstract:
... The accumulation of driftwood during heavy rainfall may block river channels and damage structures. It is necessary to mitigate such effects by periodically capturing and removing driftwood from rivers. In this study, the behavior of driftwood in open-channel flows with a relatively large wood density was modeled numerically. The water flow and driftwood motion were solved three-dimensionally, wit ...
DOI:
10.3390/w13101406

78. 4-MCHM sorption to and desorption from granular activated carbon and raw coal

Author:
T. Scott Jeter; Emily A. Sarver; Harold M. McNair; Mohammad Rezaee
Source:
Chemosphere 2016 v.157 pp. 160-165
ISSN:
0045-6535
Subject:
activated carbon; alcohols; business enterprises; cleaning; coal; desorption; filters; flame ionization; headspace analysis; particle size; rivers; sorbents; water pollution; water supply; water treatment; West Virginia
Abstract:
... 4-Methylcyclohexanemethanol (4-MCHM) is a saturated higher alicyclic primary alcohol that is used in the froth flotation process for cleaning coal. In early 2014, a large spill of crude chemical (containing primarily 4-MCHM) to the Elk River near Charleston, WV contaminated the local water supply. Carbon filters at the affected water treatment facility quickly became saturated, and the contaminate ...
DOI:
10.1016/j.chemosphere.2016.04.125

79. 4-Methylcyclohexane methanol (MCHM) affects viability, development, and movement of Xenopus embryos

Author:
Mark Perfetto; Scotia G. Kirkham; Michael C. Ayers; Shuo Wei; Jennifer E.G. Gallagher
Source:
Toxicology reports 2021 v.8 pp. 38-43
ISSN:
2214-7500
Subject:
Xenopus tropicalis; coal; human cell lines; melanization; methanol; river water; rivers; toxicity; toxicology; viability; water supply
Abstract:
... Following chemical spill disasters, it is important to estimate the effects of spilled chemicals on humans and the environment. Here we analyzed the toxicological effects of the coal cleaning chemical, 4-methylcyclohexane methanol (MCHM), which was spilled into the Elk River water supply in 2014. The viability of HEK293 T human cell line cultures and Xenopus tropicalis embryos was negatively affec ...
DOI:
10.1016/j.toxrep.2020.12.009

80. 42. Age-old changes in ecosystems of Tit–Ary, the polar island in the lower reaches of the Lena river (north-east Asia)

Author:
A.P. Isaev; L.G. Mikhalyova; N.G. Solomonov; M.V. Okoneshnikova; V.K. Vasilyeva; A.A. Popov; T.I. Ivanova
Source:
Cryobiology 2012 v.65 no.3 pp. 352-353
ISSN:
0011-2240
Subject:
arthropods; trees; fungi; mosses and liverworts; shoots; forests; stems; tree trunk; Microtus oeconomus; ecosystems; winter; growth and development; soil; climate change; temperature; small mammals; humus; climatic factors; cold; birds; canopy; rivers; latitude; shrews; thawing; lichens; Australia; Asia
Abstract:
... At the beginning of the 20th century, the expedition headed by Cajander (1903, 1904) discovered the northern outpost of a larch forest in the lower reaches of the Lena River, on a polar island Tit-Ary. At that time, the canopy density of the forest values reached 0.4; tree height was 3–5m, and tree trunk stems were crooked. Two years later, the Australian ornithologists Hall and Trebilcock (Robin, ...
DOI:
10.1016/j.cryobiol.2012.07.041

81. 50,000 dams later: Erosion of the Yangtze River and its delta

Author:
S.L. Yang; J.D. Milliman; P. Li; K. Xu
Source:
Global and planetary change 2011 v.75 no.1-2 pp. 14-20
ISSN:
0921-8181
Subject:
islands; pollution load; river deltas; rivers; sediment yield; sediments; watersheds; Yangtze River
Abstract:
... Using 50years of hydrologic and bathymetric data, we show that construction of ~50,000 dams throughout the Yangtze River watershed, particularly the 2003 closing of the Three Gorges Dam (TGD), has resulted in downstream channel erosion and coarsening of bottom sediment, and erosion of the Yangtze's subaqueous delta. The downstream channel from TGD reverted from an accretion rate of ~90Mt (1Mt = 10 ...
DOI:
10.1016/j.gloplacha.2010.09.006

82. 500-year tree-ring reconstruction of Salween River streamflow related to the history of water supply in Southeast Asia

Author:
Feng Chen; Huaming Shang; Irina Panyushkina; David Meko; Jinbao Li; Yujiang Yuan; Shulong Yu; Fahu Chen; Daming He; Xian Luo
Source:
Climate dynamics 2019 v.53 no.11 pp. 6595-6607
ISSN:
0930-7575
Subject:
climate; cold; dendroclimatology; drought; growth rings; monsoon season; regression analysis; rivers; stream flow; summer; temperature; trees; variance; water management; water shortages; watersheds; China; Myanmar
Abstract:
... The great rivers that flow from the southern Tibetan Plateau (TP) affect billions of people in the downstream countries of Asia. Understanding of the hydrological variability of these rivers is still limited, however, because of the lack of long-term streamflow records. Tree-ring width chronologies from six sites are applied to reconstruct annual streamflow of the Salween River, the last remaining ...
DOI:
10.1007/s00382-019-04948-1

83. 6700 yr sedimentary record of climatic and anthropogenic signals in Lake Aydat (French Massif Central)

Author:
Marlène Lavrieux; Jean-Robert Disnar; Emmanuel Chapron; Jean-Gabriel Bréheret; Jérémy Jacob; Yannick Miras; Jean-Louis Reyss; Valérie Andrieu-Ponel; Fabien Arnaud
Source:
Holocene v.23 no.9 pp. 1317-1328
ISSN:
1477-0911
Subject:
Holocene epoch; X-ray fluorescence spectroscopy; algal blooms; anthropogenic activities; eutrophication; lakes; lava; magnetism; models; pollen; rivers; watersheds
Abstract:
... A 19 m long sedimentary record retrieved in Lake Aydat (French Massif Central) covers the last 6700 yr at a high resolution. A multiproxy approach (density, magnetic susceptibility, XRF, Rock-Eval, pollen and non-pollen palynomorph analyses and a historical archives study) was used to characterise and propose a model of sedimentation. The high deposition rate results from the combined effects of t ...
DOI:
10.1177/0959683613484616

84. 6:2 Fluorotelomer alcohol biotransformation in an aerobic river sediment system

Author:
Lijie Zhao; Patrick W. Folsom; Barry W. Wolstenholme; Hongwen Sun; Ning Wang; Robert C. Buck
Source:
Chemosphere 2013 v.90 pp. 203-209
ISSN:
0045-6535
Subject:
acids; alcohols; biotransformation; carbon; microorganisms; raw materials; rivers; sediments; sodium hydroxide; soil
Abstract:
... The 6:2 FTOH [F(CF2)6CH2CH2OH] is a major raw material being used to replace 8:2 FTOH [F(CF2)8CH2CH2OH] to make FTOH-based products for industrial and consumer applications. A novel aerobic sediment experimental system containing 20g wet sediment and 30mL aqueous solution was developed to study 6:2 FTOH biotransformation in river sediment. 6:2 FTOH was dosed into the sediment to follow its biotran ...
DOI:
10.1016/j.chemosphere.2012.06.035
PubMed:
22840539

85. 7200 years of Rhône river flooding activity in Lake Le Bourget, France: a high-resolution sediment record of NW Alps hydrology

Author:
F. Arnaud; M. Revel; E. Chapron; M. Desmet; N. Tribovillard
Source:
Holocene 2005 v.15 no.3 pp. 420-428
ISSN:
0959-6836
Subject:
aluminum; anthropogenic activities; carbonates; geomorphology; hydrology; iron; lakes; magnesium; magnetism; potassium; radiocarbon dating; rivers; sediments; silicate minerals; silicon; soil; France
Abstract:
... Magnetic susceptibility (MS) was measured with high resolution (5 mm) on a 9 m long, ¹⁴C dated core from Lake Le Bourget (Savoie, France), spanning the last 7200 years. The strong correlation (R=0.85) of the MS with the silicate-borne suite of elements (Si, Al, Fe, Mg, K) and anti-correlation with the carbonate content (R =-0.87) allows it to be used as a proxy for the fluctuations of the abundanc ...
DOI:
10.1191/0959683605hl801rp

86. 758. IXIA MOSTERTII: Iridaceae

Author:
Graham Duncan
Source:
Curtis's botanical magazine 2013 v.30 no.2 pp. 76-86
ISSN:
1355-4905
Subject:
Ixia mostertii; habitats; indigenous species; pollination; rivers; taxonomy; threatened species
Abstract:
... The South African geophyte Ixia mostertii M.P. de Vos is a beautiful but highly threatened species endemic to the Upper Breede River Valley in the south‐western Cape. Details of its history and threats to its habitat and possible restoration are given, with notes on taxonomy, pollination and cultivation. ...
DOI:
10.1111/curt.12022

87. 891. NICOTIANA OCCIDENTALIS SUBSPECIES OBLIQUA: Solanaceae

Author:
Mark W. Chase; Maarten J. M. Christenhusz
Source:
Curtis's botanical magazine 2018 v.35 no.3 pp. 295-303
ISSN:
1355-4905
Subject:
Nicotiana occidentalis; botanical gardens; botany; cell biology; ecology; plants (botany); rivers; taxon descriptions; tobacco; Australia
Abstract:
... Nicotiana occidentalis subsp. obliqua is a highly glandular and scented tobacco widespread in Australia. It is illustrated from plants collected along the Gascoyne River and cultivated at the Royal Botanic Gardens, Kew. Its ecology, cytology and horticultural use are discussed. ...
DOI:
10.1111/curt.12250

88. 9. Investigation into genetic diversity of perch inhabiting Lake Drūkšiai and other water bodies of Lithuania on the basis of mtDNA analysis

Author:
Adomas Ragauskas; Dalius Butkauskas; Aniolas Sruoga
Source:
Zoology and ecology 2014 v.24 no.2 pp. 154-159
ISSN:
2165-8013
Subject:
coasts; genetic relationships; genetic variation; haplotypes; lakes; mitochondrial DNA; nuclear power; perch; phylogeny; population structure; power plants; rivers; surface water; zoology; Baltic Sea; Lithuania
Abstract:
... To collect information on possible impacts of a nuclear power plant on the formation of the genetic structure of the population of perch as an intensively exploited fish species, an investigation into the scope of intraspecific genetic diversity of a rapidly changing mtDNA D-loop region of perch was initiated. We determined the partial D-loop sequences for 173 perch specimens representing populati ...
DOI:
10.1080/21658005.2014.925232

89. 996. NICOTIANA MONOSCHIZOCARPA: Solanaceae

Author:
Mark W. Chase; Maarten J. M. Christenhusz
Source:
Curtis's botanical magazine 2021 v.38 no.3 pp. 374-382
ISSN:
1355-4905
Subject:
Nicotiana; cell biology; ecology; rivers; Northern Territory
Abstract:
... Nicotiana monoschizocarpa is illustrated from plants collected along the banks of the Daly River in the Northern Territory (Australia) and cultivated at the Royal Botanic Gardens, Kew. Its taxonomic history, ecology, cytology and cultivation are discussed. ...
DOI:
10.1111/curt.12404

90. 997. NICOTIANA MURCHISONICA: Solanaceae

Author:
Mark W. Chase; Rachel A. Przeslawski; Liam E. Falvey; Michael F. Fay; Maarten J. M. Christenhusz
Source:
Curtis's botanical magazine 2021 v.38 no.3 pp. 383-393
ISSN:
1355-4905
Subject:
Nicotiana; cell biology; ecology; rivers; Western Australia
Abstract:
... Nicotiana murchisonica is described here. It is illustrated from plants collected along the Murchison River and tributaries in Western Australia and cultivated at the Royal Botanic Gardens, Kew. Its discovery, ecology, cytology and cultivation are discussed. ...
DOI:
10.1111/curt.12405

91. Trichomycterus sketi: a new species of subterranean catfish (Siluriformes: Trichomycteridae) from the Andean Cordillera of Colombia

Author:
César A. Castellanos-Morales
Source:
Biota Colombiana 2010 v.11 no.1 y 2 pp. -
ISSN:
2539-200X
Subject:
Trichomycterus; basins; catfish; new species; rivers; Andes region; Colombia
Abstract:
... A new catfish species belonging to genus Trichomycterus Valenciennes (Trichomycteridae) is described. Trichomycterus sketi n. sp. was collected in Cueva del Indio located in the upper río Opón basin, Magdalena river system, in the Andean Cordillera, Santander department, Colombia. The new species differs from other species of the genus by having posterior fontanel divided into two widely separated ...
DOI:
10.21068/bc.v11i1 y 2.230

92. Armillaria altimontana Is Associated with Healthy Western White Pine (Pinus monticola): Potential in Situ Biological Control of the Armillaria Root Disease Pathogen, A. solidipes

Author:
Marcus V. Warwell; Geral I. McDonald; John W. Hanna; Mee-Sook Kim; Bradley M. Lalande; Jane E. Stewart; Andrew T. Hudak; Ned B. Klopfenstein
Source:
Forests 2019 v.10 no.4 pp. -
ISSN:
1999-4907
Subject:
Armillaria ostoyae; Pinus monticola; biological control; conifers; dead wood; demography; forests; geographical distribution; pathogens; planting; provenance; rivers; root diseases; tree growth; trees; virulence; Idaho
Abstract:
... Research Highlights: Two genets of Armillaria altimontana Brazee, B. Ortiz, Banik, and D.L. Lindner and five genets of Armillaria solidipes Peck (as A. ostoyae [Romagnesi] Herink) were identified and spatially mapped within a 16-year-old western white pine (Pinus monticola Doug.) plantation, which demonstrated distinct spatial distribution and interspecific associations. Background and Objectives: ...
DOI:
10.3390/f10040294

93. Epipactis albensis (Orchidaceae) in Ukraine — New data on occurrence and ecology

Author:
T. Ljubka; Á. Lovas-Kiss; A. Takács; A. Molnár V.
Source:
Acta botanica Hungarica 2014 v.56 no.3-4 pp. 399-408
ISSN:
0236-6495
Subject:
Epipactis; autogamy; ecology; floodplains; flora; fruit set; pH; potassium chloride; rivers; soil; Central European region; Czech Republic; Hungary; Romania; Ukraine
Abstract:
... Epipactis albensis Nováková et Rydlo (Orchidaceae), a species previously undocumented in the flora of Ukraine, was found in three localities in this country (in vicinity of Chetfalva, Fanchykovo and Drotyntsi, Zakarpattia district) in 2012. The species (originally described from the Czech Republic) recently has only been known to exist in seven Central European countries. The three Ukrainia ...
DOI:
10.1556/ABot.56.2014.3-4.14

94. Myriophyllum aquaticum-Based Surface Flow Constructed Wetlands for Enhanced Eutrophic Nutrient Removal—A Case Study from Laboratory-Scale up to Pilot-Scale Constructed Wetland

Author:
Shugeng Feng; Shengjun Xu; Xupo Zhang; Rui Wang; Xiaona Ma; Zhirui Zhao; Guoqiang Zhuang; Zhihui Bai; Xuliang Zhuang
Source:
Water 2018 v.10 no.10 pp. -
ISSN:
2073-4441
Subject:
Eichhornia crassipes; Myriophyllum aquaticum; ammonium; aquatic environment; case studies; constructed wetlands; ecosystems; energy; eutrophication; lakes; macrophytes; microbial communities; models; nitrogen; nutrients; overland flow; phosphorus; polyethylene; rivers; sediments; total nitrogen; wastewater; water pollution; China
Abstract:
... Water pollution caused by various eutrophic nutrients such as nitrogen (N) and phosphorus (P), such as outbreaks of eutrophication in rivers and lakes, has become a serious environmental problem in China. Such problems have spurred extensive studies aiming at finding environmentally friendly solutions. Various constructed wetlands (CWs), planted with different macrophytes, have been considered as ...
DOI:
10.3390/w10101391

95. Trichomycterus rosablanca (Siluriformes, Trichomycteridae) a new species of hipogean catfish from the Colombian Andes

Author:
M. Mesa S. Lina; Carlos Andrés Lasso; Luz E. Ochoa; Carlos DoNascimiento
Source:
Biota Colombiana 2018 v.19 no.Sup. 1 pp. 95-116
ISSN:
2539-200X
Subject:
Trichomycterus; catfish; genetic distance; new species; nose; nucleotide sequences; pigmentation; rivers; watersheds; Andes region; Colombia
Abstract:
... Trichomycterus rosablanca is described as a new troglobitic catfish species from caves in southeastern Santander, Colombia. These caves are drained by the Carare River of the Magdalena River basin. The new species is characterized by the advanced condition in the typical troglomorphisms found in other congeneric cave-dwelling species, such as absence of eyes and pigmentation. Trichomycterus rosabl ...

96. Vitis vinifera ssp. sylvestris (Gmeli) Hegi populations in Southern Portugal: assessing the genetic diversity for its future management and conservation

Author:
J. Cunha; M. Teixeira Santos; L.C. Carneiro; P. Fevereiro; J.E.J. Eiras-Dias
Source:
Czech journal of genetics and plant breeding v.46 no.Special Issue pp. S87
ISSN:
1212-1975
Subject:
Vitis vinifera subsp. sylvestris; genetic variation; habitats; microsatellite repeats; rivers; surveys; variance; wood; Iberian Peninsula; Portugal
Abstract:
...  A survey of Vitis vinifera ssp. sylvestris (Gmeli) Hegi in Portugal has revealed the existence of wildvine populations that occur only in riparian wood habitats on river margins, as is the case for other European populations. The genetic diversity of four populations has been evaluated using nuclear and chloropastidial microsatellites as molecular markers. An analysis of molecu ...
DOI:
10.17221/2671-cjgpb

97. A 0.65Ma chronology and incision rate assessment of the NW Iberian Miño River terraces based on ¹⁰Be and luminescence dating

Author:
W. Viveen; R. Braucher; D. Bourlès; J.M. Schoorl; A. Veldkamp; R.T. van Balen; J. Wallinga; D. Fernandez-Mosquera; J.R. Vidal-Romani; J. Sanjurjo-Sanchez
Source:
Global and planetary change 2012 v.94-95 no. pp. 82-100
ISSN:
0921-8181
Subject:
altitude; basins; coasts; continental shelf; luminescence; permeability; rivers; sea level; surfaces; tectonics; terraces; vegetation cover
Abstract:
... In this work a series of 5 luminescence and ¹⁰Be dated fluvial terraces of the Miño River (NW Iberian Atlantic Margin) is presented. The outcomes allowed answering the longstanding question whether the Miño valley infill has a fluvial or marine origin. The perfect exponential decrease in ¹⁰Be concentrations with depth and a progressive increase in age with terrace altitude indicate that the Miño t ...
DOI:
10.1016/j.gloplacha.2012.07.001

98. A 1,400-year eolian dust activity record from Lake Erhai in the northeastern Tibetan Plateau

Author:
Min Wang; Caiming Shen; Xudong Wu; Guangxin Liu; Jiaju Zhao; Qifa Sun; Hongbo Zheng; Xiangzhong Li
Source:
Catena 2022 v.212 pp. 106050
ISSN:
0341-8162
Subject:
basins; carbonates; catenas; climate; dust; human health; humans; lakes; oxygen; particle size distribution; riparian areas; rivers; satellites; sediments; Central Asia; China
Abstract:
... Dust raised from Arid Central Asia (ACA) affects the global climate, global biogeochemical cycles, and human health. Studies on the ACA dust activities thus are crucial for understanding dust forcing mechanisms and the mitigation of hazardous storms. Located at the downwind margin of the ACA, the Lake Qinghai basin is an ideal trap for dust activities documentation. However, isolating eolian dust ...
DOI:
10.1016/j.catena.2022.106050

99. A 10-Year Statistical Analysis of Heavy Metals in River and Sediment in Hengyang Segment, Xiangjiang River Basin, China

Author:
Jingwen Tang; Liyuan Chai; Huan Li; Zhihui Yang; Weichun Yang
Source:
Sustainability 2018 v.10 no.4 pp. -
ISSN:
2071-1050
Subject:
chromium; data collection; environmental monitoring; heavy metals; rivers; sediment contamination; sediments; statistical analysis; watersheds; China
Abstract:
... Heavy metal elements in water and surface sediments were characterized in Hengyang river segment in Xiangjiang River basin, one of China’s most important heavy metal control and treatment region. Data of heavy metal monitoring results in water and sediment for 10 years were acquired from an environmental monitoring program in the main channel of the studied area. Descriptive and exploratory statis ...
DOI:
10.3390/su10041057

100. A 125 year record of fluvial calcium flux from a temperate catchment: Interplay of climate, land-use change and atmospheric deposition

Author:
F. Worrall; N.J.K. Howden; T.P. Burt
Source:
Journal of hydrology 2012 v.468-469 no. pp. 249-256
ISSN:
0022-1694
Subject:
agricultural land; agricultural watersheds; atmospheric deposition; calcium; climate; global warming; groundwater; hardness; land use change; leaching; memory; mineral soils; nitrogen; rivers; sulfates; temperature; time series analysis; urbanization; water hardness; United Kingdom
Abstract:
... This paper analyses the world’s longest fluvial record of water hardness and calcium (Ca) concentration. We used records of permanent and temporary hardness and river flow for the UK’s River Thames (catchment area 9998km²) to estimate annual Ca flux from the river since 1883. The Thames catchment has a mix of agricultural and urban land use; it is dominated by mineral soils with groundwater contri ...
DOI:
10.1016/j.jhydrol.2012.08.039