Impact of Climate Change on Spider Species Distribution Along the La Plata River Basin, Southern South America: Projecting Future Range Shifts for the GenusStenoterommata(Araneae, Mygalomorphae, Nemesiidae)

The impact of climate change on soil erosion is pronounced in high mountain area. In this study, the revised universal soil loss equation (RUSLE) model was improved for better calculation of soil erosion during snowmelt period by integrating a distributed hydrological model in upper Heihe river basin (UHRB). The results showed that the annual average soil erosion rate from 1982 to 2015 in the study area was 8.1 t ha-1 yr-1, belonging to the light grade. To evaluate the influence of climate change on soil erosion, detrended analysis of precipitation, temperature and NDVI was conducted. It was found that in detrended analysis of precipitation and temperature, the soil erosion of UHRB would decrease 26.5% and 3.0%, respectively. While in detrended analysis of NDVI, soil erosion would increase 9.9%. Compared with precipitation, the effect of temperature on total soil erosion was not significant, but the detrended analysis of temperature showed that the effect of temperature on soil erosion during snowmelt period can reach 70%. These finding were helpful for better understanding of the impact of climate change on soil erosion and provide a scientific basis for soil management in high mountain area under climate change in the future.

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Impact of Climate Change on Water with Reference to the Ganges–Brahmaputra–Meghna River Basin

Chemistry and Water ◽

10.1016/b978-0-12-809330-6.00003-9 ◽

2017 ◽

pp. 121-160 ◽

Cited By ~ 1

Author(s):

M.A. Islam ◽

S.L. Islam ◽

A. Hassan

Keyword(s):

Climate Change ◽

River Basin ◽

Impact Of Climate Change ◽

The Ganges

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Impact of climate change on streamflow and water quality in the upper Dong Nai river basin, Vietnam

La Houille Blanche ◽

10.1051/lhb/2018010 ◽

2018 ◽

pp. 70-79 ◽

Cited By ~ 1

Author(s):

Le Viet Thang ◽

Dao Nguyen Khoi ◽

Ho Long Phi

Keyword(s):

Climate Change ◽

Water Quality ◽

River Basin ◽

Sediment Load ◽

Swat Model ◽

Future Climate Change ◽

Climate Change Scenarios ◽

Nutrient Load ◽

Impact Of Climate Change ◽

The Impact

In this study, we investigated the impact of climate change on streamflow and water quality (TSS, T-N, and T-P loads) in the upper Dong Nai River Basin using the Soil and Water Assessment Tool (SWAT) hydrological model. The calibration and validation results indicated that the SWAT model is a reasonable tool for simulating streamflow and water quality for this basin. Based on the well-calibrated SWAT model, the responses of streamflow, sediment load, and nutrient load to climate change were simulated. Climate change scenarios (RCP 4.5 and RCP 8.5) were developed from five GCM simulations (CanESM2, CNRM-CM5, HadGEM2-AO, IPSL-CM5A-LR, and MPI-ESM-MR) using the delta change method. The results indicated that climate in the study area would become warmer and wetter in the future. Climate change leads to increases in streamflow, sediment load, T-N load, and T-P load. Besides that, the impacts of climate change would exacerbate serious problems related to water shortage in the dry season and soil erosion and degradation in the wet season. In addition, it is indicated that changes in sediment yield and nutrient load due to climate change are larger than the corresponding changes in streamflow.

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Radial growth response to climate change along the latitudinal range of the world's southernmost conifer in southern South America

Journal of Biogeography ◽

10.1111/jbi.13199 ◽

2018 ◽

Vol 45 (5) ◽

pp. 1140-1152 ◽

Cited By ~ 7

Author(s):

Andrés Holz ◽

Sarah J. Hart ◽

Grant J. Williamson ◽

Thomas T. Veblen ◽

Juan C. Aravena

Keyword(s):

Climate Change ◽

South America ◽

Radial Growth ◽

Growth Response ◽

Southern South America ◽

Latitudinal Range

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Multimodeling Approach to Assess the Impact of Climate Change on Water Availability and Rice Productivity: A Case Study in Cauvery River Basin, Tamil Nadu, India

Groundwater Assessment, Modeling, and Management ◽

10.1201/9781315369044-33 ◽

2016 ◽

pp. 479-497

Author(s):

V. Geethalakshmi ◽

K. Bhuvaneswari ◽

A. Lakshmanan ◽

Nagothu Udaya Sekhar ◽

Sonali Mcdermid ◽

...

Keyword(s):

Climate Change ◽

River Basin ◽

Water Availability ◽

Tamil Nadu ◽

Cauvery River ◽

Rice Productivity ◽

Impact Of Climate Change ◽

Cauvery River Basin ◽

The Impact

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Late Holocene summer temperatures in the central Andes reconstructed from the sediments of high-elevation Laguna Chepical, Chile (32° S)

Climate of the Past Discussions ◽

10.5194/cpd-9-2277-2013 ◽

2013 ◽

Vol 9 (3) ◽

pp. 2277-2308

Author(s):

R. de Jong ◽

L. von Gunten ◽

A. Maldonado ◽

M. Grosjean

Keyword(s):

Climate Change ◽

South America ◽

Temperature Reconstruction ◽

High Elevation ◽

Ice Age ◽

Central Chile ◽

Southern South America ◽

Calibration Period ◽

The Past ◽

Insight Into

Abstract. High-resolution reconstructions of climate variability that cover the past millennia are necessary to improve the understanding of natural and anthropogenic climate change across the globe. Although numerous records are available for the mid- and high-latitudes of the Northern Hemisphere, global assessments are still compromised by the scarcity of data from the Southern Hemisphere. This is particularly the case for the tropical and subtropical areas. In addition, high elevation sites in the South American Andes may provide insight into the vertical structure of climate change in the mid-troposphere. This study presents a 3000 yr long austral summer (November to February) temperature reconstruction derived from the 210Pb and 14C dated organic sediments of Laguna Chepical (32°16' S/70°30' W, 3050 m a.s.l.), a high-elevation glacial lake in the subtropical Andes of central Chile. Scanning reflectance spectroscopy in the visible light range provided the spectral index R570/R630, which reflects the clay mineral content in lake sediments. For the calibration period (AD 1901–2006), the R570/R630 data were regressed against monthly meteorological reanalysis data, showing that this proxy was strongly and significantly correlated with mean summer (NDJF) temperatures (R3yr = −0.63, padj = 0.01). This calibration model was used to make a quantitative temperature reconstruction back to 1000 BC. The reconstruction (with a model error RMSEPboot of 0.33 °C) shows that the warmest decades of the past 3000 yr occurred during the calibration period. The 19th century (end of the Little Ice Age (LIA)) was cool. The prominent warmth reconstructed for the 18th century, which was also observed in other records from this area, seems systematic for subtropical and southern South America but remains difficult to explain. Except for this warm period, the LIA was generally characterized by cool summers. Back to AD 1400, the results from this study compare remarkably well to low altitude records from the Chilean Central Valley and Southern South America. However, the reconstruction from Laguna Chepical does not show a warm Medieval Climate Anomaly during the 12–13th century, which is consistent with records from tropical South America. The Chepical record also indicates substantial cooling prior to 800 BC. This coincides with well-known regional as well as global glacier advances which have been attributed to a grand solar minimum. This study thus provides insight into the climatic drivers and temperature patterns in a region for which currently very few data are available. It also shows that since ca AD 1400, long term temperature patterns were generally similar at low and high altitudes in central Chile.

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