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1. Two pool-to-pool spacing periods on large sand-bed rivers: Mega-pools on the Madeira and Mississippi

Author:
Gibson, S.; Osorio, A.; Creech, C.; Amorim, R.; Dircksen, M.; Dahl, T.; Koohafkan, M.
Source:
Geomorphology 2019 v.328 pp. 196-210
ISSN:
0169-555X
Subject:
alluvium,   etc   ; cliffs; granite; rivers; statistics; Brazil; Mississippi River;     Show all 7 Subjects
Abstract:
... The Madeira River thalweg includes two pool-to-pool spacing periods. First, standard pool-crossing sequences form 6 to 8 m deep pools. These pool-crossing sequences recur approximately every six channel widths (9.7 km or 6.8 W), on average. However, the Madeira study reach (between Manicoré and Porto Velho in Northern Brazil) is relatively straight, making these pools more frequent than meanders. ...
DOI:
10.1016/j.geomorph.2018.12.021

2. Does spatial heterogeneity of hyporheic fauna vary similarly with natural and artificial changes in braided river width?

Author:
Marmonier, Pierre; Olivier, Marie-José; Creuzé des Châtelliers, Michel; Paran, Frédéric; Graillot, Didier; Winiarski, Thierry; Konecny-Dupré, Lara; Navel, Simon; Cadilhac, Laurent
Source:
The Science of the total environment 2019 v.689 pp. 57-69
ISSN:
0048-9697
Subject:
alluvium,   etc   ; community structure; fauna; floodplains; groundwater; hyporheic zone; river regulation; rivers; spatial variation;     Show all 9 Subjects
Abstract:
... Heterogeneity of hyporheic fauna is associated with geomorphological features and related vertical water exchanges. Constrictions on river floodplain are known to induce groundwater inputs and increase stygobite fauna. Two floodplain constrictions were studied in a large braided river (the Drôme River): one linked to a natural process (valley narrowing), another to an artificial river regulation ( ...
DOI:
10.1016/j.scitotenv.2019.06.352

3. Fluvial response to climate change inferred from sediment cores from the Ghaggar–Hakra paleochannel in NW Indo–Gangetic plains

Author:
Singh, Ajit; Sinha, Rajiv
Source:
Palaeogeography, palaeoclimatology, palaeoecology 2019 v.532 pp. 109247
ISSN:
0031-0182
Subject:
alluvium,   etc   ; climate change; drainage; floodplains; luminescence; paleoclimatology; rivers; sand; silty clay soils; stratigraphy; Indo-Gangetic Plain;     Show all 11 Subjects
Abstract:
... In the Indo–Gangetic plains (IGP), the inter–basinal area between the Ganga in east and the Indus in west is currently devoid of any major drainage. A wide paleochannel belt, the Ghaggar-Hakra channel, has been mapped in this region. Our previous studies along with others established that a large Himalayan river flowed through this paleochannel, and a large–scale drainage reorganisation occurred d ...
DOI:
10.1016/j.palaeo.2019.109247

4. Identification and mapping of riverbed sediment facies in the Columbia River through integration of field observations and numerical simulations

Author:
Hou, Zhangshuan; Scheibe, Timothy D.; Murray, Christopher J.; Perkins, William A.; Arntzen, Evan V.; Ren, Huiying; Mackley, Robert D.; Richmond, Marshall C.
Source:
Hydrological processes 2019 v.33 no.8 pp. 1245-1259
ISSN:
0885-6087
Subject:
alluvium,   etc   ; aquifers; biogeochemistry; groundwater; hydrodynamics; mathematical models; rivers; stream channels; surface water; texture; Columbia River;     Show all 11 Subjects
Abstract:
... In the Hanford Reach of the Columbia River, a thin layer of recent alluvium overlies the sedimentary formations that comprise the unconfined groundwater aquifer. Experimental and modelling studies have demonstrated that this alluvial layer exerts significant control on the exchange of groundwater and surface water (hydrologic exchange flux), and is associated with elevated levels of biogeochemical ...
DOI:
10.1002/hyp.13396

5. Disruption in an alluvial landscape: Settlement and environment dynamics on the alluvium of the river Dyje at the Pohansko archaeological site (Czech Republic)

Author:
Petřík, Jan; Petr, Libor; Adameková, Katarína; Prišťáková, Michaela; Potůčková, Anna; Lenďáková, Zuzana; Frączek, Marcin; Dresler, Petr; Macháček, Jiří; Kalicki, Tomasz; Lisá, Lenka
Source:
Quaternary international 2019 v.511 pp. 124-139
ISSN:
1040-6182
Subject:
alluvium,   etc   ; anthropogenic activities; climate change; floodplains; landscapes; paleoecology; rivers; soil horizons; watersheds; Czech Republic;     Show all 10 Subjects
Abstract:
... Floodplain alluvia can provide a combination of natural and anthropogenic evidence of environmental changes, allowing to directly examine their evolution in relation to settlement dynamics. Such evidence is recorded, for example, at the archaeological site Pohansko by the town of Břeclav, a former centre of the Great Moravian Empire. The aim of our research was to explore what conditions on the fl ...
DOI:
10.1016/j.quaint.2018.04.013

6. Monitoring land cover change of a river-floodplain system using high-resolution satellite images

Author:
Okada, Shiena; Khanal, Rajendra; Yoshimura, Chihiro; Saavedra, Oliver; Ryo, Masahiro
Source:
Landscape and ecological engineering 2019 v.15 no.1 pp. 63-74
ISSN:
1860-1871
Subject:
alluvium,   etc   ; cloud cover; habitats; land cover; monitoring; remote sensing; river water; rivers; vegetation; Italy;     Show all 10 Subjects
Abstract:
... In this study, a method was developed to monitor habitat structure in river-floodplain systems using high-resolution satellite images from 2010 to 2012 across a 30-km longitudinal section of the Tagliamento River, Northeast Italy. Three ortho-corrected RapidEye satellite images at 5-m spatial resolution and cloud cover of < 1%, with four spectral bands, namely, blue, green, red, and near-infrared, ...
DOI:
10.1007/s11355-018-0361-2

7. Gravettian weaponry: 23,500-year-old evidence of a composite barbed point from Les Prés de Laure (France)

Author:
Tomasso, Antonin; Rots, Veerle; Purdue, Louise; Beyries, Sylvie; Buckley, Mike; Cheval, Carole; Cnuts, Dries; Coppe, Justin; Julien, Marie-Anne; Grenet, Michel; Lepers, Christian; M'hamdi, Mondher; Simon, Patrick; Sorin, Sabine; Porraz, Guillaume
Source:
Journal of archaeological science 2018 v.100 pp. 158-175
ISSN:
0305-4403
Subject:
alluvium,   etc   ; archaeology; evolution; horses; manufacturing; rivers; socioeconomics; France;     Show all 8 Subjects
Abstract:
... Understanding hunting technology is pivotal in the study of adaptive and innovative forces that influenced the evolution of prehistoric societies. The manufacture, design and use of hunting weapons involve technical processes such as those of tool miniaturization, blank standardization and projection modes, but also influence broader demographic structures such as human subsistence strategies, ter ...
DOI:
10.1016/j.jas.2018.05.003

8. Delineating sources of groundwater recharge and carbon in Holocene aquifers of the central Gangetic basin using stable isotopic signatures

Author:
Kumar, Manoj; Ramanathan, AL.; Mukherjee, Abhijit; Sawlani, Ravi; Ranjan, Shyam
Source:
Isotopes in environmental and health studies 2019 v.55 no.3 pp. 254-271
ISSN:
1477-2639
Subject:
alluvium,   etc   ; Holocene epoch; aquifers; basins; carbon; clay; deuterium; evaporation; floodplains; groundwater; groundwater recharge; microbial activity; oxygen; piedmont; ponds; rivers; sand; sandy clay soils; stable isotopes; India;     Show all 20 Subjects
Abstract:
... Stable isotopes of water (δ²H, δ¹⁸O) and δ¹³CTIC were used as a tool to trace the recharge processes, natural carbon (organic and inorganic) source and dynamics in the aquifers of the central Gangetic basin, India. Stable isotope (δ²H, δ¹⁸O) record of groundwater (n = 105) revealed that the groundwater of Piedmont was recharged by meteoric origin before evaporation, while aquifers of the older and ...
DOI:
10.1080/10256016.2019.1600515

9. Impacts of pre- vs. postcolonial land use on floodplain sedimentation in temperate North America

Author:
James, L. Allan
Source:
Geomorphology 2019 v.331 pp. 59-77
ISSN:
0169-555X
Subject:
alluvium,   etc   ; alluvial soils; floodplains; inventories; land clearing; land use; landscapes; latitude; logging; mining; population dynamics; rivers; soil formation; temporal variation; valleys; Mississippi; Wisconsin;     Show all 17 Subjects
Abstract:
... This paper evaluates the relative importance of anthropogeomorphic sedimentation on floodplains in the mid-latitudes of North America before and after the arrival of EuroAmericans. Geohistorical and geoarchaeological theories have emerged that have conflicts concerning the relative effectiveness of pre- and postcolonial anthropogeomorphic change in North America. Many geoarchaeologists, paleoecolo ...
DOI:
10.1016/j.geomorph.2018.09.025

10. Prehispanic and colonial landscape change and fluvial dynamics in the Chalco Region, Mexico

Author:
Frederick, Charles D.; Cordova, Carlos E.
Source:
Geomorphology 2019 v.331 pp. 107-126
ISSN:
0169-555X
Subject:
alluvium,   etc   ; basins; climate; drying; human settlements; lakes; landscapes; mass movement; population growth; quaternary deposits; radiocarbon dating; rivers; sedentary lifestyle; soil erosion; surveys; Mexico;     Show all 16 Subjects
Abstract:
... The late Quaternary deposits of the lakeshore plain and western edge of Lake Chalco in the southeastern Basin of Mexico were explored in order to understand the influence of alluvial sedimentation on archeological visibility and preservation, as well as to seek out records that would permit direct comparison of erosion and sedimentation with the demographic record derived from the archeological su ...
DOI:
10.1016/j.geomorph.2018.10.009

11. Modeling groundwater level fluctuations in Tehran aquifer: Results from a 3D unconfined aquifer model

Author:
Karimi, L.; Motagh, M.; Entezam, I.
Source:
Groundwater for sustainable development 2019 v.8 pp. 439-449
ISSN:
2352-801X
Subject:
alluvium,   etc   ; groundwater extraction; risk; simulation models; rivers; subsidence; sustainable development; unconfined aquifer; model validation; social impact; groundwater; hydraulic conductivity; water table;     Show all 13 Subjects
Abstract:
... Heavy groundwater withdrawal results in aquifer compaction and increases the risk of land subsidence hazard with significant economic, environmental, and social consequences. Having an accurate model for hydraulic pressure loss and groundwater level changes is one of the crucial factors in proper modeling and evaluation of land subsidence hazard. This paper investigates dynamics of groundwater var ...
DOI:
10.1016/j.gsd.2019.01.003

12. Factors controlling nitrate concentration in space and time in wells distributed along an aquifer/river interface (Káraný, Czechia)

Author:
Bruthans, Jiří; Kůrková, Iva; Kadlecová, Renáta
Source:
Hydrogeology journal 2019 v.27 no.1 pp. 195-210
ISSN:
1431-2174
Subject:
alluvium,   etc   ; agricultural productivity; alluvial aquifer; developed countries; fertilizers; filtration; groundwater; intensive farming; mixing; nitrates; riparian areas; river water; rivers; sandstone; space and time; weirs; wells;     Show all 17 Subjects
Abstract:
... Nitrate is necessary for agricultural productivity, but it is also one of the most common water contaminants in developed countries. The riverbank filtration (RBF) systems in Káraný (Czechia), with nearly 500 wells regularly distributed along 22 km of the alluvium aquifer/river interface, presents a unique field laboratory where the adverse effects of intensive agriculture on groundwater can be tr ...
DOI:
10.1007/s10040-018-1854-7

13. Liquefaction potential assessment of a region using different techniques (Tepebasi, Eskişehir, Turkey)

Author:
Kayabasi, A.; Gokceoglu, C.
Source:
Engineering geology 2018 v.246 pp. 139-161
ISSN:
0013-7952
Subject:
alluvium,   etc   ; earthquakes; equations; geophysics; laboratory experimentation; liquefaction; probability; rivers; sand; soil; Turkey (country);     Show all 11 Subjects
Abstract:
... Eskişehir is a city in Turkey that is located primarily on the Porsuk river alluvium deposits. Hence, the probability of liquefaction is a geotechnical problem in this city. In this study, the liquefaction potential was investigated using a standard penetration test (SPT) and downhole geophysical test. Menard pressuremeter tests were also performed in order to modify liquefaction analysis methods ...
DOI:
10.1016/j.enggeo.2018.09.029

14. Numerical Modeling of Non-Uniform Sediment Transport in River Channels

Author:
Aleksyuk, A. I.; Belikov, V. V.; Borisova, N. M.; Fedorova, T. A.
Source:
Water resources 2018 v.45 no.Supplement 1 pp. 11-17
ISSN:
0097-8078
Subject:
alluvium,   etc   ; algorithms; basins; deformation; equations; hydroelectric power; mathematical models; power plants; rivers; sediment transport; soil; washing;     Show all 12 Subjects
Abstract:
... The mathematical model for simulating deformations of river channels composed of heterogeneous alluvium has been developed. The combination of shallow water equations and a three-layer model is used to describe the fluid flow and non-uniform sediment transport in bed (layer II) and suspended (layer III) loads. Changes in the fractional composition of unerodible bottom sediments (layer I) are also ...
DOI:
10.1134/S0097807818050275

15. The palaeoecological development of the Late Medieval moat - Multiproxy research at Rozprza, Central Poland

Author:
Kittel, P.; Sikora, J.; Antczak, O.; Brooks, S.J.; Elias, S.; Krąpiec, M.; Luoto, T.P.; Borówka, R.K.; Okupny, D.; Pawłowski, D.; Płóciennik, M.; Rzodkiewicz, M.; Stachowicz-Rybka, R.; Wacnik, A.
Source:
Quaternary international 2018 v.482 pp. 131-156
ISSN:
1040-6182
Subject:
alluvium,   etc   ; dendrochronology; floodplains; habitats; paleoecology; peat; river valleys; rivers; terraces; Ontario; Poland;     Show all 11 Subjects
Abstract:
... The Rozprza stronghold functioned as a seat of a noble family since at least the early14ᵗʰ century AD in the form of the motte-and-bailey residence. The remains of the residence are situated in the central part of mid-Luciąża River valley, on the river terrace remnant adjoining a strongly expanding floodplain. The situation and state of preservation give a unique opportunity to conduct research th ...
DOI:
10.1016/j.quaint.2018.03.026

16. Pioneer plant Phalaris arundinacea and earthworms promote initial soil structure formation despite strong alluvial dynamics in a semi-controlled field experiment

Author:
Schomburg, A.; Brunner, P.; Turberg, P.; Guenat, C.; Riaz, M.; Le Bayon, R.C.; Luster, J.
Source:
Catena 2019 v.180 pp. 41-54
ISSN:
0341-8162
Subject:
alluvium,   etc   ; Phalaris arundinacea; aggregate stability; bank erosion; computed tomography; earthworms; ecological restoration; ecosystem engineers; environmental factors; field experimentation; floodplains; habitats; herbaceous plants; hydraulic conductivity; indigenous species; pioneer species; porosity; rivers; sand; soil structure; vegetation; Switzerland;     Show all 22 Subjects
Abstract:
... Soil structure formation is among the most important processes in river floodplains which are strongly influenced by alluvial dynamics. In the context of river restoration projects, a better understanding of soil structure formation in habitats adjacent to the river can help to prevent damages caused by riverbank erosion. Ecosystem engineers such as pioneer herbaceous plants and earthworms likely ...
DOI:
10.1016/j.catena.2019.04.001

17. Modern alluvial pollen distribution in Ganges–Brahmaputra–Meghna (GBM) floodplain and its paleoenvironmental significance

Author:
Kumar, Sazal; Luo, Chuanxiu; Rahman, Ananna; Thilakanayaka, Vidusanka; Khan, Md Hafijur Rahaman; Liu, Jianguo; Islam, G.M. Ariful
Source:
Review of palaeobotany and palynology 2019 v.267 pp. 1-16
ISSN:
0034-6667
Subject:
alluvium,   etc   ; Amaranthaceae; Asteraceae; Brassicaceae; Pinus; Poaceae; Tsuga; agricultural land; climate; dry environmental conditions; ferns and fern allies; floodplains; fungi; hydrodynamics; paleoclimatology; paleoecology; palynology; pollen; population distribution; rivers; spores; stream channels; trees; vegetation; watersheds; wind; Bangladesh; Bay of Bengal; Himalayan region;     Show all 29 Subjects
Abstract:
... Research into modern alluvial pollen constitutes essential information on understanding pollen–vegetation, vegetation–climate, and vegetation distribution pattern, which in turn facilitate reconstruction of paleovegetation and paleoenvironment. However, such studies are scarce in globally renowned Ganges–Brahmaputra–Meghna (GBM) floodplain region, Bangladesh. In order to determine the main charact ...
DOI:
10.1016/j.revpalbo.2019.04.008

18. Bayesian hydrograph separation in a minimally gauged alpine volcanic watershed in central Chile

Author:
Markovich, Katherine H.; Dahlke, Helen E.; Arumí, José Luis; Maxwell, Reed M.; Fogg, Graham E.
Source:
Journal of hydrology 2019
ISSN:
0022-1694
Subject:
alluvium,   etc   ; Bayesian theory; base flow; basins; bedrock; climate change; data collection; groundwater; hydrograph; isotopes; mixing; rain; rivers; snow; statistical models; subsurface flow; subwatersheds; temporal variation; water management; wet season; Chile;     Show all 21 Subjects
Abstract:
... This study examines the question of how much information one can extract from a tracer-based hydrograph separation in a remote and minimally gaged alpine catchment in Chile. We combine PCA-based endmember mixing analysis to identify the sources of flow contribution to the Diguillín River with a hierarchical Bayesian mixing model to integrate spatial and temporal variability in endmember concentrat ...
DOI:
10.1016/j.jhydrol.2019.06.014

19. Development of a groundwater flow and reactive solute transport model in the Yongding River alluvial fan, China

Author:
Hu, Haizhu; Mao, Xiaomin; Yang, Qing
Source:
Frontiers of earth science 2019 v.13 no.2 pp. 371-384
ISSN:
2095-0195
Subject:
alluvium,   etc   ; drinking water; ecological restoration; groundwater; groundwater flow; mathematical models; prediction; risk assessment; rivers; sewage; solutes; suburban areas; unconfined aquifer; wastewater treatment; water budget; water storage; water supply; water table; wells; China;     Show all 20 Subjects
Abstract:
... The Yongding River in the western suburbs of Beijing has been recharged with reclaimed water since 2010 for the purpose of ecological restoration. Where the reclaimed water is not well treated, it poses a danger to the aquifer underneath the river. To provide a reliable tool which could be used in future research to quantify the influence of reclaimed water in the Yongding River on the local groun ...
DOI:
10.1007/s11707-018-0718-8

20. Synlithogenic Evolution of Floodplain Soils in Valleys of Small Rivers in the Trans-Ural Steppe

Author:
Ivanov, I. V.; Prikhodko, V. E.; Zamotaev, I. V.; Manakhov, D. V.; Novenko, E. Yu.; Kalinin, P. I.; Markova, L. M.; Plaksina, A. L.
Source:
Eurasian soil science 2019 v.52 no.6 pp. 593-609
ISSN:
1064-2293
Subject:
alluvium,   etc   ; Holocene epoch; Solonetz; alluvial soils; buried soils; carbonates; climate; floodplains; floods; forests; humus; humus horizons; palynology; pollen; radiocarbon dating; research methods; rivers; salinity; soil formation; soil properties; steppes; trees; valleys; watersheds; Russia;     Show all 25 Subjects
Abstract:
... The relationship between soil formation and sedimentation on the floodplain of the Utyaganka River (the Ural River basin) in the Arkaim Reserve (Chelyabinsk oblast, Southern Ural, Russia) was studied. Pedological, palynological, and mineralogical research methods were applied, and 15 radiocarbon dates of soil humus and sediments were obtained. The thickness of the Holocene sediments on the low flo ...
DOI:
10.1134/S1064229319060061