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1. 1/f noise analyses of urbanization effects on streamflow characteristics

Author:
Dong Hwan Kim; P. Suresh C. Rao; Dongkyun Kim; Jeryang Park
Source:
Hydrological processes 2016 v.30 no.11 pp. 1651-1664
ISSN:
0885-6087
Subject:
autocorrelation; climate change; climatic factors; homogenization; industrialization; risk; runoff; spectral analysis; stream flow; streams; time series analysis; topography; urbanization; watersheds; South Korea
Abstract:
... Nonstationary hydrologic behaviour resulting from rapid industrialization and urbanization, combined with climate change effects, likely produces greater challenges in water resources and flood risk managements. Our country‐wide analyses for South Korea, based on spectral analysis technique, revealed how streamflow characteristics have shifted towards a less hydrologic memory state, which indicate ...
DOI:
10.1002/hyp.10727

2. 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

3. 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

4. 13C CP/MAS-NMR spectra of organic matter as influenced by vegetation, climate, and soil characteristics in soils from Murcia, Spain

Author:
Faz Cano, A.; Mermut, A.R.; Ortiz, R.; Benke, M.B.; Chatson, B.
Source:
Canadian journal of soil science 2002 v.82 no.4 pp. 403-411
ISSN:
0008-4271
Subject:
cation exchange capacity; clay; climatic factors; nutrients; organic compounds; organic matter; plant communities; probability; soil management; spectroscopy; sustainable agriculture; sustainable technology; vegetation; Spain
Abstract:
... Soils in southern Spain are low in organic matter (OM) and nutrients. Understanding the nature and dynamics of OM has potential to improve soil management technologies for sustainable crop production. The objective of this work was to establish the distribution of functional groups in organic-C from these soils using 13C CP/MAS-NMR spectroscopy and to investigate the influence of vegetation, clima ...
DOI:
10.4141/S02-031

5. 14,000 years of climate-induced changes in carbon resources sustaining benthic consumers in a small boreal lake (Lake Tollari, Estonia)

Author:
Belle Simon; Poska Anneli; Hossann Christian; Tõnno Ilmar
Source:
Climatic change 2017 v.145 no.1-2 pp. 205-219
ISSN:
0165-0009
Subject:
sediments; temporal variation; food webs; humans; lakes; air temperature; organic carbon; carbon cycle; watersheds; deforestation; global warming; summer; ecosystems; stable isotopes; biomass; climatic factors; Chironomidae; recycling; Estonia
Abstract:
... In order to forecast the influence of future climate change on lake ecosystems, the paleolimnological approaches are needed to understand the impact of past climate variability. We reconstruct temporal changes in carbon resources sustaining chironomid biomass over the last 14,000 years, by means of carbon stable isotope analysis of subfossil chironomids (δ¹³CHC), with the aim of identifying the re ...
DOI:
10.1007/s10584-017-2074-1

6. 17,000years of vegetation, fire and climate change in the eastern foothills of the Andes (lat. 44°S)

Author:
Virginia Iglesias; Vera Markgraf; Cathy Whitlock
Source:
Palaeogeography, palaeoclimatology, palaeoecology 2016 v.457 pp. 195-208
ISSN:
0031-0182
Subject:
charcoal; climate change; climatic factors; ecosystems; fires; forestry development; forests; hills; humidity; latitude; longitude; paleoecology; pollen; seasonal variation; solar radiation; trees; watersheds; wind; Andes region; Argentina
Abstract:
... Paleoenvironmental records from Patagonia reveal the importance of latitude, longitude and elevation in shaping the response of vegetation to climate change. We examined the vegetation, fire and watershed history from two sites at lat. 44°S, as inferred from pollen, charcoal and lithologic data. These reconstructions were compared with independent paleoenvironmental records to better understand ec ...
DOI:
10.1016/j.palaeo.2016.06.008

7. 30 Years of protection and monitoring of a steppic rangeland undergoing desertification

Author:
Slimani, H.; Aidoud, A.; Rozé, F.
Source:
Journal of arid environments 2010 v.74 no.6 pp. 685-691
ISSN:
0140-1963
Subject:
desertification; steppe soils; rangelands; arid lands; Stipa tenacissima; sheep; rangeland soils; soil degradation; vegetation cover; climatic factors; overgrazing; environmental monitoring; Algeria
Abstract:
... Stipa tenacissima L., which has long been recognised as the typical dominant perennial plant in the North-African arid rangelands is currently going into extinction in the steppic High Plains of Algeria. The vegetation and soil dynamics were analyzed at an initially dense stand. The trend between 1976 and 2006 was investigated using five reference years. Sampling was performed along a grazing grad ...
DOI:
10.1016/j.jaridenv.2009.10.015

8. 32Si dating of sediments from Lake Baikal

Author:
U. Morgenstern; R. G. Ditchburn; E. G. Vologina; M. Sturm
Source:
Journal of paleolimnology 2013 v.50 no.3 pp. 345-352
ISSN:
0921-2728
Subject:
climatic factors; lakes; sediments; silica; surface water level; turbidity; watersheds; Lake Baikal
Abstract:
... We applied the³²Si dating technique to a sediment core from Lake Baikal to obtain the sediment chronology for the last millennium. The core was recovered about 4 km offshore from the north slope of the South Basin in 1,366 m water depth. The sediment material consisted of continuously accumulated diatom-rich geogenic-terrigenous mud, intercalated with a number of dark olive-grey turbidite layers. ...
DOI:
10.1007/s10933-013-9729-3

9. 4-Amino-1,2,4-triazole can be more effective than commercial nitrification inhibitors at high soil temperatures

Author:
Tariq Mahmood; Rehmat Ali; Asma Lodhi; Muhammad Sajid
Source:
Soil research 2017 v.55 no.7 pp. 715-722
ISSN:
1838-675X
Subject:
aerobic conditions; ammonium nitrogen; ammonium sulfate; application rate; calcareous soils; climatic factors; dicyandiamide; granules; nitrapyrin; nitrification; nitrification inhibitors; phosphates; soil temperature; summer
Abstract:
... Commercial nitrification inhibitors (NIs), namely nitrapyrin, 3,4-dimethylpyrazol phosphate (DMPP) and dicyandiamide (DCD), are ineffective at high temperatures. Therefore, it is imperative to explore new compounds that can be commercialised as effective NIs for warm climatic conditions. The aim of the present study was to compare the potential of 4-amino-1,2,4-triazole (ATC) with the two commerci ...
DOI:
10.1071/SR16340

10. 40Ar/ 39Ar ages and stable isotopes of supergene jarosite from the Baiyin VHMS ore field, NE Tibetan Plateau with paleoclimatic implications

Author:
Lei Chen; Jianwei Li
Source:
Chinese science bulletin 2014 v.59 no.24 pp. 2999-3009
ISSN:
1001-6538
Subject:
alluvium; climatic factors; crystals; geochemistry; hills; hydrogen; jarosite; mineralization; oxidation; oxygen; plateaus; rocks; stable isotopes; tectonics; weathering; China
Abstract:
... Supergene jarosite is widely distributed in weathering profiles derived from hypogene sulfide ores. Precise⁴⁰Ar/³⁹Ar dating and determination of hydrogen and oxygen isotopes of supergene jarosite can not only place tight constraints on the timing and history of continental weathering and supergene enrichment of sulfide ore deposits, but also shed significant insights into paleoclimatic conditions ...
DOI:
10.1007/s11434-014-0276-8

11. 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

12. 4200 years of pine‐dominated upland forest dynamics in west‐central mexico: human or natural legacy

Author:
Blanca L. Figueroa-Rangel; Katherine J. Willis; Miguel Olvera-Vargas
Source:
Ecology 2008 v.89 no.7 pp. 1893-1907
ISSN:
0012-9658
Subject:
coniferous forests; biodiversity; conservation areas; forest reserves; anthropogenic activities; indigenous peoples; ecological processes and phenomena; plant ecology; climatic factors; Mexico
Abstract:
... The pine‐dominated forests of west‐central Mexico are internationally recognized for their high biodiversity, and some areas are protected through various conservation measures including prohibition of human activity. In this region, however, there is evidence for human settlement dating back to ca. AD 1200. It is therefore unclear whether the present forest composition and structure are part of a ...
DOI:
10.1890/07-0830.1

13. 5-Aminolevulinic acid moderates environmental stress-induced bunch wilting and stress markers in date palm

Author:
Majid Alikhani-Koupaei; Reza Fatahi; Zabihollah Zamani; Saeedeh Salimi
Source:
Acta physiologiae plantarum 2018 v.40 no.8 pp. 159
ISSN:
0137-5881
Subject:
Phoenix dactylifera; aminolevulinic acid; aqueous solutions; biosynthesis; catalase; chlorophyll; climatic factors; elicitors; enzyme activity; foliar application; fruit set; fruits; hydrogen peroxide; leaves; peroxidase; proline; relative humidity; stress tolerance; superoxide dismutase; temperature; trees; wilting; Iran
Abstract:
... Bunch wilting, a disorder of date palm (Phoenix dactylifera L.) and caused by climatic factors (low relative humidity along with high temperatures), critically damages its production in Iran. In this study, the effects of 5-aminolevulinic acid (5-ALA) as precursor of chlorophyll and elicitor of antioxidants applied to be involve directly or indirectly in stress tolerance mechanisms, bunch wilting ...
DOI:
10.1007/s11738-018-2720-x

14. 7Be in soil, deposited dust and atmospheric air and its using to infer soil erosion along Alexandria region, Egypt

Author:
I.H. Saleh; A.A. Abdel-Halim
Source:
Journal of environmental radioactivity 2017 v.172 pp. 24-29
ISSN:
0265-931X
Subject:
air; autumn; climatic factors; dust; inventories; radioactivity; sea level; seasonal variation; soil; soil erosion; spring; summer; winter; Egypt
Abstract:
... This study investigated the radioactivity behavior of ⁷Be in surface soil, airborne and deposited dust along Alexandria region in Egypt. The results obtained were used to predict scavenging processes of ⁷Be from surface soil to infer soil erosion and land vulnerable to accelerated sea-level rise. The areal activity concentrations of ⁷Be in surface soil were investigated in 30 undisturbed sites and ...
DOI:
10.1016/j.jenvrad.2017.03.005

15. Note: The Role of Seasonality and Climatic Factors in Shaping the Community Composition of Mediterranean Butterflies

Author:
Rachel Schwartz-Tzachor; Ido Izhaki; Avi Perevolotsky
Source:
Israel journal of ecology & evolution 2008 v.54 no.1 pp. 105-110
ISSN:
1565-9801
Subject:
butterflies; climatic factors; community structure; global warming; monitoring; relative humidity; temperature; Israel
Abstract:
... Although many studies indicate a relation between global warming and variation in spatial and temporal butterfly distribution, detailed studies are lacking on the importance of local climatic factors on butterfly community composition. We studied the relation between climatic factors and seasonality on butterfly community composition in a Mediterranean climate-type region. The butterfly diversity ...
DOI:
10.1560/IJEE.54.1.105

16. A 10 000‐Yr History of Natural Ecosystem Acidification

Author:
Mary S. (Jesse) Ford
Source:
Ecological monographs 1990 v.60 no.1 pp. 57-89
ISSN:
0012-9615
Subject:
Bacillariophyceae; Cyclotella; Mallomonas; Melosira; Picea; accidents; acidification; acidity; aluminum; aluminum silicates; aquatic ecosystems; aquifers; calcium; carbonates; cations; chemical bases; climatic factors; flora; gneiss; highlands; lakes; limestone; organic matter; pH; paleoecology; peat; plankton; pollen; sediments; silicon; soil acidification; soil profiles; sulfide minerals; surface water; upland soils; vegetation; watersheds; weathering; New England region; New Hampshire; Vermont
Abstract:
... This study examines natural, long—term (≈10⁴ yr) acidification processes in New England using paleoecological methods (pollen, diatoms, and the chemistry of three operationally defined sediment fractions) and a paired watershed approach.The primary variable is lithology, and the focus of this study is to illuminate the role of lithology in long—term ecosystem acidification. Unlike most cases of re ...
DOI:
10.2307/1943026

17. A 10,000 year local forest fire history in a dry heath forest site in eastern Finland, reconstructed from charcoal layer records of a small mire

Author:
Pitkanen, A.; Huttunen, P.; Jungner, H.; Tolonen, K.
Source:
Canadian journal of forest research = 2002 v.32 no.10 pp. 1875-1880
ISSN:
0045-5067
Subject:
forests; forest fires; history; charcoal; wetlands; peat; Picea abies; climatic factors; air temperature; frequency; Finland
Abstract:
... Local fire history covering the entire Holocene period at a dry forest site in North Karelia, eastern Finland (ca. 63 degrees 07'N, 30 degrees 44'E), was reconstructed on the basis of visible charcoal layers from peat deposits of a small mire basin. Seven points studied along a transect a few metres long provided a record of ancient local forest fires that had scarred the margin of the peat deposi ...
DOI:
10.1139/x02-103

18. A 10-days Heatwave Around Flowering Superimposed on Climate Change Conditions Significantly Affects Production of 22 Barley Accessions

Author:
C.H. Ingvordsen; M.F. Lyngkjær; P. Peltonen-Sainio; T.N. Mikkelsen; R.B. Jørgensen
Source:
Procedia Environmental Sciences 2015 v.29 pp. 160-161
ISSN:
1878-0296
Subject:
barley; biomass; breeding; carbon dioxide; climate change; climatic factors; cultivars; floods; flowering; genotype; grain yield; primary productivity; storms; summer; temperature
Abstract:
... Extreme climate events as heatwaves, floods and storms cause acute changes in season variability influencing primary production and are very likely to increase in magnitude and/or frequency (IPCC, AR5, WGI)1,2.In the present study 22 primarily Nordic barley accessions were grown in four basic climate treatments of 1) 19/12°C (day/night) and 400ppm carbon dioxide concentration [CO2] mimicking ambie ...
DOI:
10.1016/j.proenv.2015.07.239

19. A 100-Year Review: A century of change in temperate grazing dairy systems

Author:
J.R. Roche; D.P. Berry; A.M. Bryant; C.R. Burke; S.T. Butler; P.G. Dillon; D.J. Donaghy; B. Horan; K.A. Macdonald; K.L. Macmillan
Source:
Journal of dairy science 2017 v.100 no.12 pp. 10189-10233
ISSN:
0022-0302
Subject:
agricultural research; anestrus; animal welfare; automation; breeds; climatic factors; continuous grazing; cows; dairy farming; electric fences; environmental sustainability; estrus; farm management; farmers; farming systems; feed supplements; feeds; genetic improvement; grazing systems; harvesting; herds; labor; leaching; milk; milk production; milking parlors; natural selection; nitrates; nitrogen content; nitrogen fertilizers; plants (botany); research institutions; researchers; risk; rotational grazing; spermatozoa; stocking rate; urine
Abstract:
... From 1917 to 2017, dairy grazing systems have evolved from uncontrolled grazing of unimproved pastures by dual-purpose dairy-beef breeds to an intensive system with a high output per unit of land from a fit-for-purpose cow. The end of World War I signaled significant government investments in agricultural research institutes around the world, which coincided with technological breakthroughs in mil ...
DOI:
10.3168/jds.2017-13182

20. A 1200-year history of environmental changes in Bay Jimmy area, coastal Louisiana, USA

Author:
Lawrence M Kiage
Source:
Holocene 2020 v.30 no.2 pp. 201-209
ISSN:
1477-0911
Subject:
Ambrosia; Holocene epoch; Juglans; Pinus; Quercus; Rhizophora; anthropogenic activities; climatic factors; fabrics; forest damage; forests; hurricanes; landscapes; marshes; paleoecology; plant communities; pollen; sediments; Gulf of Mexico; Louisiana
Abstract:
... Paleoecological studies from the northern Gulf of Mexico (GOM) have mostly aimed at understanding long-term paleoenvironmental changes. Only a few studies have been performed in the southern United States focusing on paleoenvironmental changes during the common era. This study investigated paleoenvironmental changes in coastal Louisiana over the past 1200 years by utilizing proxy data, including l ...
DOI:
10.1177/0959683619875801

21. A 16-year record of eolian dust in Southern Nevada and California, USA: Controls on dust generation and accumulation

Author:
Reheis, M.C.
Source:
Journal of arid environments 2006 v.67 no.3 pp. 487-520
ISSN:
0140-1963
Subject:
dust control; arid lands; dust emissions; eolian deposits; drought; wind erosion; playas; climatic factors; water table; Nevada; Mojave Desert; Sonoran Desert; California
DOI:
10.1016/j.jaridenv.2006.03.006

22. A 2-year study of soil tillage and cattle manure application effects on soil fauna populations under Zea Mays cultivation, in western Iran (Sanandaj)

Author:
Jabbar Moradi; Hussein Besharati; Hussein Ali Bahrami; Mojtaba Karimi
Source:
Environmental earth sciences 2013 v.70 no.2 pp. 799-805
ISSN:
1866-6280
Subject:
Collembola; Zea mays; agricultural soils; biomass; bulk density; cattle manure; climatic factors; crop yield; disturbed soils; earthworms; management systems; manure spreading; mites; risk; seedbed preparation; soil nematodes; soil water; sustainable agriculture; tillage; Iran
Abstract:
... The absence of environmentally sensitive soil management systems can be considered as one of the major risks to sustainability of agricultural soils in Iran. Tillage is the most critical operation in soil management designed to achieve high crop yield, but it can adversely affect the soil fauna in several ways. In the present study, assessment of soil fauna was carried out in Western Iran in 2008 ...
DOI:
10.1007/s12665-012-2169-y

23. A 200-year climate record in Central Europe: implications for agriculture

Author:
Trnka, Miroslav; Brazdil, Rudolf; Dubrovsky, Martin; Semeradova, Daniela; Stepanek, Petr; Dobrovolny, Petr; Mozny, Martin; Eitzinger, Josef; Malek, Jan; Formayer, Herbert; Balek, Jan; Zalud, Zdenek
Source:
Agronomy for sustainable development 2011 v.31 no.4 pp. 631-641
ISSN:
1773-0155
Subject:
General Circulation Models; Ostrinia nubilalis; climate change; climatic factors; crop production; evapotranspiration; frost; lowlands; meteorological data; pests; rainfed farming; snowpack; soil suitability; soil surveys; summer; taxes; temperature; vegetation; zoning; Central European region
Abstract:
... The close links of climate, soil conditions, and agricultural productivity have been used in Central Europe for taxation purposes since the eighteenth century. Since agroclimatic conditions are variable, their fluctuations in the past centuries can provide a valuable context for analyzing changes expected in the coming decades. Here, historical agroclimatic conditions and future projections were c ...
DOI:
10.1007/s13593-011-0038-9

24. A 2700calyr BP extreme flood event revealed by sediment accumulation in Amazon floodplains

Author:
P. Moreira-Turcq; B. Turcq; L.S. Moreira; M. Amorim; R.C. Cordeiro; J.-L. Guyot
Source:
Palaeogeography, palaeoclimatology, palaeoecology 2014 v.415 pp. 175-182
ISSN:
0031-0182
Subject:
climatic factors; color; floodplains; floods; lakes; sediments; solar radiation; stratigraphy; summer; Amazon River; Amazonia; South America
Abstract:
... Climatic conditions are one of the most important factors affecting hydrological processes in fluvial systems. Higher discharges are responsible for higher erosion, greater transport, and also higher deposition. Consequently, sediment accumulation in Amazonia floodplain river-connected lakes can be directly related to hydrological patterns of the Amazon River mainstream. In this context, we analyz ...
DOI:
10.1016/j.palaeo.2014.07.037

25. A 43-year Evaluation of a Prescribed Fire: An Arizona Case Study

Author:
Ffolliott, Peter F.; Stropki, Cody L.; Kauffman, Aaron T.
Source:
Fire ecology 2009 v.5 no.1 pp. 79-84
ISSN:
1933-9747
Subject:
tree growth; density; forest trees; forest litter; herbaceous plants; coniferous forests; fires; Pinus ponderosa; drought; ground vegetation; forest growth; prescribed burning; case studies; stand basal area; climatic factors; overstory; Arizona
Abstract:
... We evaluated the effects of a prescribed fire in a ponderosa pine (Pinus ponderosa) forest intermittently over 43 years. Changing climatic (precipitation) conditions spanned this evaluation with a sequential pattern of annual precipitation regimes above average, average, and below average (drought conditions) encompassed. The original objective of the fire to consume three-fourths of the litter an ...
DOI:
10.4996/fireecology.0501079

26. A 450-year record of environmental change from Castle Lake, California (USA), inferred from diatoms and organic geochemistry

Author:
Paula J. Noble; Gary A. McGaughey; Michael R. Rosen; Christopher C. Fuller; Marco A. Aquino-López; Sudeep Chandra
Source:
Journal of paleolimnology 2021 v.65 no.2 pp. 201-217
ISSN:
0921-2728
Subject:
Asterionella formosa; Tabellaria; ammonium nitrate; climatic factors; data collection; denitrification; fish; fractionation; geochemistry; humans; ice cover; lakes; nitrogen; phytoplankton; sediments; California
Abstract:
... A 39-cm sediment core from Castle Lake, California (USA) spans the last ~ 450 years and was analyzed for diatoms and organic geochemistry (δ¹⁵N, δ¹³C, and C:N), with the goal of determining sensitivity to natural climate variation and twentieth century anthropogenic effects. Castle Lake is a subalpine, nitrogen-limited lake with ~ 5 months of annual ice cover. Human impacts include light recreatio ...
DOI:
10.1007/s10933-020-00160-y

27. A 50 year study shows grass cover has increased in shrublands of semi-arid South Africa

Author:
Mmoto L. Masubelele; M.T. Hoffman; W.J. Bond; J. Gambiza
Source:
Journal of arid environments 2014 v.104 pp. 43-51
ISSN:
0140-1963
Subject:
climate change; climatic factors; dry environmental conditions; ecosystems; ecotones; grasses; grasslands; land use change; overgrazing; photography; shrublands; shrubs; stocking rate; surveys; South Africa
Abstract:
... In many parts of the world the boundaries between grassland and shrubland biomes have changed substantially over the course of the last century. Many are projected to shift further from being grass-dominated to shrub-dominated by 2050 under global climate change and land use change projections. This paper used long-term surveys and repeat photography to assess vegetation change at the shrubland-gr ...
DOI:
10.1016/j.jaridenv.2014.01.011

28. A 5000-year record of agriculture and tropical forest clearance in the Tuxtlas, Veracruz, Mexico

Author:
Michelle Goman; Roger Byrne
Source:
Holocene 1998 v.8 no.1 pp. 83-89
ISSN:
0959-6836
Subject:
charcoal; climatic factors; corn; intensive farming; lakes; pollen; sediments; tropical forests; Mexico
Abstract:
... We present pollen and microscopic charcoal evidence from securely dated lake sediments, located in the Tuxtlas region of Veracruz, Mexico. Two periods of agricultural activity are recognized. The earliest phase reflects a low level of forest clearance and agriculture. The data provides a minimum date of 4830 cal. BP for the introduction of maize agriculture to the region. The second phase indicate ...
DOI:
10.1191/095968398670396093

29. A 5000-year record of disturbance and vegetation change in riparian forests of the Queets River, Washington, U.S.A

Author:
Greenwald, D.N.; Brubaker, L.B.
Source:
Canadian journal of forest research = 2001 v.31 no.8 pp. 1375-1385
ISSN:
0045-5067
Subject:
history; sediments; pioneer species; riparian forests; palynology; botanical composition; ecological succession; charcoal; forest fires; climatic factors; disturbed soils
Abstract:
... We used fossil pollen, charcoal, and sediment stratigraphy in three small hollows to investigate disturbance events and changes in the composition of riparian forests on a small section of the Queets River floodplain, Olympic Peninsula, Washington. The records ranged in age from approximately 500 years at two sites 300 and 550 m from the river, to 5000 years at a site 800 m from the river. Approxi ...
DOI:
10.1139/x01-068

30. A 700 year record of temperature and nutrient changes in a small eutrophied lake in southern Finland

Author:
Tomi P. Luoto; Kaarina Sarmaja-Korjonen; Liisa Nevalainen; Tommi Kauppila
Source:
Holocene 2009 v.19 no.7 pp. 1063-1072
ISSN:
0959-6836
Subject:
aquatic organisms; climatic factors; cold; ecosystems; eutrophication; lakes; models; phosphorus; sediments; temperature; Finland
Abstract:
... This study aimed to distinguish natural and anthropogenic environmental changes, mainly in climate and nutrient conditions, during the past c. 700 years in Lake Hampträsk, southern Finland. We used sedimentary assemblages of aquatic organisms and physical properties of the sediment as proxies for the past environmental conditions. The results of diatom-inferred phosphorus reconstruction indicated ...
DOI:
10.1177/0959683609341002

31. A 700‐year paleoecological record of boreal ecosystem responses to climatic variation from alaska

Author:
Willy Tinner; Christian Bigler; Sharon Gedye; Irene Gregory-Eaves; Richard T. Jones; Petra Kaltenrieder; Urs Krähenbühl; Feng Sheng Hu
Source:
Ecology 2008 v.89 no.3 pp. 729-743
ISSN:
0012-9658
Subject:
boreal forests; ecotones; paleoecology; tundra; history; sediments; lakes; peatlands; forest ecosystems; forest fires; forest trees; wetland plants; botanical composition; climate change; climatic factors; aquatic plants; shrubs; plant communities; herbaceous plants; soil erosion; taiga; paleoclimatology; Alaska
Abstract:
... Recent observations and model simulations have highlighted the sensitivity of the forest–tundra ecotone to climatic forcing. In contrast, paleoecological studies have not provided evidence of tree‐line fluctuations in response to Holocene climatic changes in Alaska, suggesting that the forest–tundra boundary in certain areas may be relatively stable at multicentennial to millennial time scales. We ...
DOI:
10.1890/06-1420.1
PubMed:
18459336

32. A 9000year record of cyclic vegetation changes identified in a montane peatland deposit located in the Eastern Carpathians (Central-Eastern Europe): Autogenic succession or regional climatic influences?

Author:
Mariusz Gałka; Ioan Tanţău; Vasile Ersek; Angelica Feurdean
Source:
Palaeogeography, palaeoclimatology, palaeoecology 2016 v.449 pp. 52-61
ISSN:
0031-0182
Subject:
Eriophorum vaginatum; Sphagnum magellanicum; climate change; climatic factors; ecological succession; paleoecology; peat; peatlands; pollen; vegetation; wavelet; Carpathian region; Romania
Abstract:
... We present a high-resolution, continuous plant macrofossil remains record complemented by a pollen sequence from Tăul Muced bog, in the Eastern Carpathian Mountains (Romania). The record spans the last 9000years and we test whether peatland development in the Eastern Carpathians is linked to climate change or to autogenic succession. We find that Sphagnum magellanicum was the dominant peat-forming ...
DOI:
10.1016/j.palaeo.2016.02.007

33. A 94–10ka pollen record of vegetation change in Qaidam Basin, northeastern Tibetan Plateau

Author:
Haicheng Wei; Qishun Fan; Yan Zhao; Haizhou Ma; Fashou Shan; Fuyuan An; Qin Yuan
Source:
Palaeogeography, palaeoclimatology, palaeoecology 2015 v.431 pp. 43-52
ISSN:
0031-0182
Subject:
Amaranthaceae; Artemisia; Ephedra; Pediastrum; basins; climatic factors; fossils; freshwater; isotopes; lakes; pollen; radionuclides; runoff; silt; silty clay soils; steppes; thorium; China
Abstract:
... Drill core (ISL1A) was obtained from the Qarhan Salt Lake in central eastern Qaidam Basin, northeastern Tibetan Plateau (NE TP). Fossil pollen and the lithology of the core sediment were analyzed in conjunction with AMS 14C and 230Th dating. The results indicated that Artemisia and Chenopodiaceae dominated the steppe/desert steppe vegetation developed around the lake between 94 and 51.2ka, corresp ...
DOI:
10.1016/j.palaeo.2015.04.025

34. A Bayesian Model Averaging approach for modelling tree mortality in relation to site, competition and climatic factors for Chinese fir plantations

Author:
Lele Lu; Hanchen Wang; Sophan Chhin; Aiguo Duan; Jianguo Zhang; Xiongqing Zhang
Source:
Forest ecology and management 2019 v.440 pp. 169-177
ISSN:
0378-1127
Subject:
Bayesian theory; Cunninghamia lanceolata; climate change; climatic factors; model uncertainty; models; mortality; plant density; plantations; prediction; site index; temperature; tree mortality; trees
Abstract:
... Relationships between tree mortality and endogenous factors and climate factors have emerged as important concerns, and logistic stepwise regression is widely used for modeling the relationships. However, this method subsequently ignores both the variables not selected because of insignificance, and the model uncertainty due to the variable selection process. Bayesian Model Averaging (BMA) selects ...
DOI:
10.1016/j.foreco.2019.03.003

35. A Bayesian assessment of the mercury and PCB temporal trends in lake trout (Salvelinus namaycush) and walleye (Sander vitreus) from lake Ontario, Ontario, Canada

Author:
Ariola Visha; Nilima Gandhi; Satyendra P. Bhavsar; George B. Arhonditsis
Source:
Ecotoxicology and environmental safety 2015 v.117 pp. 174-186
ISSN:
0147-6513
Subject:
Bayesian theory; Salvelinus namaycush; Sander vitreus; climatic factors; data collection; energy; females; fish; food webs; introduced species; lipid content; males; mercury; models; polychlorinated biphenyls; predator-prey relationships; risk assessment; sediments; time series analysis; Lake Ontario; Ontario
Abstract:
... Polychlorinated biphenyls (PCBs) and total mercury (THg) are two of the most prevalent contaminants, resulting in restrictive advisories on consuming fish from the Laurentian Great Lakes. The goal of this study is to examine the temporal trends of the two contaminants in walleye (Sander vitreus) and lake trout (Salvelinus namaycush) for Lake Ontario. We employed Bayesian inference techniques to pa ...
DOI:
10.1016/j.ecoenv.2015.03.022

36. A Bayesian modelling approach to forecasting short-term reference crop evapotranspiration from GCM outputs

Author:
Tongtiegang Zhao; Quan J. Wang; Andrew Schepen
Source:
Agricultural and forest meteorology 2019 v.269-270 pp. 88-101
ISSN:
0168-1923
Subject:
climatic factors; climatology; environmental management; evapotranspiration; normal distribution; Australia
Abstract:
... Evapotranspiration is one of the most important climate variables for agricultural and environmental management. We investigate the characteristics of daily crop evapotranspiration (ETo) forecasts up to 16 days ahead derived from GCM outputs using the Penman-Monteith Equation. Furthermore, we propose a post-processing method to calibrate the raw ETo forecasts to observations and improve overall re ...
DOI:
10.1016/j.agrformet.2019.02.003

37. A Biophysical Model of Corn Yield: Integrating Climatic and Social Determinants

Author:
Robert K. Kaufmann; Seth E. Snell
Source:
American journal of agricultural economics 1997 v.79 no.1 pp. 178-190
ISSN:
0002-9092
Subject:
simulation models; equations; farm management; phenology; corn; regression analysis; climate change; crop yield; social environment; climatic factors; Corn Belt region
Abstract:
... We estimate a model that accounts for both climatic and social determinants of corn yield in the United States. Climate variables are specified for periods that correspond to phenological stages of development. Social determinants include market conditions, technical factors, scale of production, and the policy environment. The model accounts for the historical and cross‐sectional variation in yie ...
DOI:
10.2307/1243952

38. A Case Study of the Influence of Local Weather on Aedes aegypti (L.) Aging and Mortality

Author:
Lucio Paulo Sérgio; Degallier Nicolas; Servain Jacques; Hannart Alexis; Durand Bruno; Souza Raimundo Nonato de; Ribeiro Zolyde Mota
Source:
Journal of vector ecology 2013 v.38 no.1 pp. 20-37
ISSN:
1081-1710
Subject:
survival rate; probability; relative humidity; models; Aedes aegypti; regression analysis; vapor pressure; temperature; case studies; climatic factors; Brazil
Abstract:
... The survival rate of mosquitoes is an important topic that affects many aspects of decision-making in mosquito management. This study aims to estimate the variability in the survival rate of Ae. aegypti, and climate factors that are related to such variability. It is generally assumed that the daily probability of mosquito survival is independent of natural environment conditions and age. To test ...
DOI:
10.3376/038.038.0118

39. A Cenozoic Great Barrier Reef on Australia's North West shelf

Author:
Jackson C. McCaffrey; Malcolm W. Wallace; Stephen J. Gallagher
Source:
Global and planetary change 2020 v.184 pp. 103048
ISSN:
0921-8181
Subject:
Holocene epoch; Miocene epoch; Paleogene period; aragonite; atolls; carbonates; climatic factors; coasts; coral reefs; dry environmental conditions; geophysics; latitude; paleoceanography; subsidence; Australia; Great Barrier Reef
Abstract:
... The Great Barrier Reef of Australia is the largest modern coral reef system on Earth. However, a similar-sized barrier reef (~2000 km long) existed on Australia's north-western margin in the middle Miocene and to some extent, still exists today. Seismic profiles reveal that this reef system was first initiated in the late Paleogene (~34–28 Ma) and reached its zenith as a prograding barrier reef du ...
DOI:
10.1016/j.gloplacha.2019.103048

40. A Cloud-Based Evaluation of the National Land Cover Database to Support New Mexico’s Food–Energy–Water Systems

Author:
Melakeneh G. Gedefaw; Hatim M.E. Geli; Kamini Yadav; Ashraf J. Zaied; Yelena Finegold; Kenneth G. Boykin
Source:
Remote Sensing 2020 v.12 no.11 pp. -
ISSN:
2072-4292
Subject:
Food and Agriculture Organization; Internet; climatic factors; cropland; curry; databases; food production; grasslands; groundwater; image analysis; land cover; land use; land use and land cover maps; models; monitoring; production technology; rangelands; remote sensing; semiarid zones; shrublands; surface water; uncertainty analysis; water shortages; New Mexico
Abstract:
... Accurate estimation of land use/land cover (LULC) areas is critical, especially over the semi-arid environments of the southwestern United States where water shortage and loss of rangelands and croplands are affecting the food production systems. This study was conducted within the context of providing an improved understanding of New Mexico’s (NM’s) Food–Energy–Water Systems (FEWS) at the county ...
DOI:
10.3390/rs12111830

41. A Combined Approach Using ISSR and Volatile Compound Analysis for Assessment of Genetic and Phytochemical Diversity in Zingiber zerumbet (L.) from Eastern India

Author:
Biswabhusan Dash; Asit Ray; Ambika Sahoo; Basudeba Kar; Tuhin Chatterjee; Tarun Halder; Pratap Chandra Panda; Jeetendranath Patnaik; Biswajit Ghosh; Sanghamitra Nayak
Source:
Journal of essential oil-bearing plants 2019 v.22 no.1 pp. 31-49
ISSN:
0976-5026
Subject:
Zingiber zerumbet; arithmetics; camphene; camphor; cineole; climatic factors; cluster analysis; essential oils; gas chromatography-mass spectrometry; genetic variation; genotype; germplasm; microsatellite repeats; oils; principal component analysis; rhizomes; volatile compounds; India
Abstract:
... Essential oil of twenty-five germplasms of Zingiber zerumbet from different accessions of Eastern India were analysed using Gas Chromatography-Mass Spectroscopy (GC/MS). A total of 29 constituents were identified representing between 72.45-98.93% of total area. Zerumbone content was found to be in a range of 60.1-79.59% for the tested rhizomes. Acc. Haroa (W.B) was found to contain highest amount ...
DOI:
10.1080/0972060X.2019.1596840

42. A Comparative Assessment of Models to Predict Monthly Rainfall in Australia

Author:
Adil M. Bagirov; Arshad Mahmood
Source:
Water resources management 2018 v.32 no.5 pp. 1777-1794
ISSN:
0920-4741
Subject:
climatic factors; meteorological data; neural networks; prediction; rain; regression analysis; support vector machines; tropics; weather stations; Australia
Abstract:
... Accurate rainfall prediction is a challenging task. It is especially challenging in Australia where the climate is highly variable. Australia’s climatic zones range from high rainfall tropical regions in the north to the driest desert region in the interior. The performance of prediction models may vary depending on climatic conditions. It is, therefore, important to assess and compare the perform ...
DOI:
10.1007/s11269-018-1903-y

43. A Comparison of SSEBop-Model-Based Evapotranspiration with Eight Evapotranspiration Products in the Yellow River Basin, China

Author:
Lichang Yin; Xiaofeng Wang; Xiaoming Feng; Bojie Fu; Yongzhe Chen
Source:
Remote Sensing 2020 v.12 no.16 pp. -
ISSN:
2072-4292
Subject:
Bayesian theory; climatic factors; energy balance; energy flow; estimation; evapotranspiration; hydrologic cycle; land; models; monitoring; remote sensing; surface temperature; uncertainty; variability; water; water management; watersheds; China; United States; Yellow River
Abstract:
... Accurate evapotranspiration (ET) estimation is important in understanding the hydrological cycle and improving water resource management. The operational simplified surface energy balance (SSEBop) model can be set up quickly for the routine monitoring of ET. Several studies have suggested that the SSEBop model, which can simulate ET, has performed inconsistently across the United States. There are ...
DOI:
10.3390/rs12162528

44. A Comparison of SWAT and ANN Models for Daily Runoff Simulation in Different Climatic Zones of Peninsular Spain

Author:
Patricia Jimeno-Sáez; Javier Senent-Aparicio; Julio Pérez-Sánchez; David Pulido-Velazquez
Source:
Water 2018 v.10 no.2 pp. -
ISSN:
2073-4441
Subject:
Mediterranean climate; Soil and Water Assessment Tool model; climatic factors; decision making; model validation; neural networks; planning; runoff; stream flow; water resources; watersheds; Spain
Abstract:
... Streamflow data are of prime importance to water-resources planning and management, and the accuracy of their estimation is very important for decision making. The Soil and Water Assessment Tool (SWAT) and Artificial Neural Network (ANN) models have been evaluated and compared to find a method to improve streamflow estimation. For a more complete evaluation, the accuracy and ability of these strea ...
DOI:
10.3390/w10020192

45. A Comparison of Streamflow and Baseflow Responses to Land-Use Change and the Variation in Climate Parameters Using SWAT

Author:
Mohamed Aboelnour; Margaret W. Gitau; Bernard A. Engel
Source:
Water 2020 v.12 no.1 pp. -
ISSN:
2073-4441
Subject:
Soil and Water Assessment Tool model; base flow; climate change; climatic factors; climatic zones; flow; information; land use change; meteorological data; planning; research; rivers; soil; streams; urbanization; water; water conservation; watershed hydrology; watersheds; Illinois; Texas
Abstract:
... Alteration of land use and climate change are among the main variables affecting watershed hydrology. Characterizing the impacts of climate variation and land use alteration on water resources is essential in managing watersheds. Thus, in this research, streamflow and baseflow responses to climate and land use variation were modeled in two watersheds, the Upper West Branch DuPage River (UWBDR) wat ...
DOI:
10.3390/w12010191

46. A Comparison of the Water Vapor Transport Through Fabrics under Conventional and Subzero Climate

Author:
Xiaohong Zhou; Jun Zhang; Yaying Gao; Shanyuan Wang; Jintu Fan
Source:
Textile research journal 2006 v.76 no.11 pp. 821-827
ISSN:
0040-5175
Subject:
climatic factors; condensates; evaporation; fabrics; heat; textile fibers; water vapor
Abstract:
... Although much study has been dedicated to heat and water vapor transport through fabrics, there remains a great lack of understanding on water vapor transport through fabrics under subzero climate, particularly in terms of the effect of condensation on water vapor transport. In this paper, we report on a novel apparatus, which was used to measure the moisture transport through fabrics under a conv ...
DOI:
10.1177/0040517506065894

47. A Critical Review of Water Resources and Their Management in Bhutan

Author:
Muhammad Atiq Ur Rehman Tariq; Kelden Wangchuk; Nitin Muttil
Source:
Hydrology 2021 v.8 no.1 pp. -
ISSN:
2306-5338
Subject:
climate change; climatic factors; developmental stages; groundwater recharge; irrigation; landscapes; lifestyle; population growth; rain; risk; tourism; urbanization; water power; water quality; water shortages; Bhutan; Himalayan region
Abstract:
... Bhutan is a small yet water-abundant country. The country suffers from frequent flooding and is lately experiencing a growing risk of localized droughts due to inappropriate water resource management and climate change. Such a situation calls for much more efficient use and management of water in Bhutan. This paper undertakes an extensive analysis of the country’s water resources for better planni ...
DOI:
10.3390/hydrology8010031

48. A Data-Driven Approach to Investigating the Impacts of Air Temperature on the Efficiencies of Coal and Natural Gas Generators

Author:
Measrainsey Meng; Kelly T. Sanders
Source:
Applied energy 2019 pp. 113486
ISSN:
0306-2619
Subject:
air; air temperature; ambient temperature; arid zones; cleaning; climatic factors; coal; combustion; cooling; cooling systems; data collection; electricity; electricity generation; natural gas; regression analysis; theoretical models; thermoelectric generators; water temperature
Abstract:
... The efficiency of a thermoelectric generator is dependent on a number of operational and climatic variables, including ambient air temperature. To date, there has not been a data-driven analysis of the impacts of climate variability on electricity generator performance that includes a statistically representative set of generators. This study develops regression models to estimate changes in the e ...
DOI:
10.1016/j.apenergy.2019.113486

49. A Deep Learning Method for Mapping Glacial Lakes from the Combined Use of Synthetic-Aperture Radar and Optical Satellite Images

Author:
Renzhe Wu; Guoxiang Liu; Rui Zhang; Xiaowen Wang; Yong Li; Bo Zhang; Jialun Cai; Wei Xiang
Source:
Remote Sensing 2020 v.12 no.24 pp. -
ISSN:
2072-4292
Subject:
Landsat; accuracy; algorithms; altitude; artificial intelligence; climate change; climatic factors; cloud cover; evolution; extraction; fields; hydrology; lakes; landscapes; models; mountains; multispectral imagery; prediction; radar; reliability; remote sensing; research; rivers; China
Abstract:
... Glacial lakes (GLs), a vital link between the hydrosphere and the cryosphere, participate in the local hydrological process, and their interannual dynamic evolution is an objective reflection and an indicator of regional climate change. The complex terrain and climatic conditions in mountainous areas where GLs are located make it difficult to employ conventional remote sensing observation means to ...
DOI:
10.3390/rs12244020

50. A Distributed Modular Data Processing Chain Applied to Simulated Satellite Ozone Observations

Author:
Marco Gai; Flavio Barbara; Simone Ceccherini; Ugo Cortesi; Samuele Del Bianco; Cecilia Tirelli; Nicola Zoppetti; Claudio Belotti; Bruno Canessa; Vincenzo Farruggia; Andrea Masini; Arno Keppens; Jean-Christopher Lambert; Antti Arola; Antti Lipponen; Olaf Tuinder
Source:
Remote Sensing 2021 v.13 no.2 pp. -
ISSN:
2072-4292
Subject:
air quality; atmospheric chemistry; climatic factors; computer software; information; information processing; infrastructure; ozone; paper; prototypes; remote sensing; satellites; troposphere; ultraviolet radiation; yields
Abstract:
... Remote sensing of the atmospheric composition from current and future satellites, such as the Sentinel missions of the Copernicus programme, yields an unprecedented amount of data to monitor air quality, ozone, UV radiation and other climate variables. Hence, full exploitation of the growing wealth of information delivered by spaceborne observing systems requires addressing the technological chall ...
DOI:
10.3390/rs13020210