scholarly journals Book review: Water Resources Research in Northwest China Helps to Deal with Water Issues in the Context of Climate Change and Human Activity

2015 ◽  
Vol 2 (2) ◽  
pp. 441-444 ◽  
Author(s):  
Peiyue Li
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
Human Activity ◽  
Northwest China ◽  
Water Issues

scholarly journals An 8500-year palynological record of vegetation, climate change and human activity in the Bosten Lake region of Northwest China

2019 ◽  
Vol 516 ◽  
pp. 166-178 ◽  
Author(s):  
Pavel E. Tarasov ◽  
Dieter Demske ◽  
Christian Leipe ◽  
Tengwen Long ◽  
Stefanie Müller ◽  
...  
Keyword(s):  
Climate Change ◽  
Human Activity ◽  
Northwest China ◽  
Bosten Lake ◽  
Lake Region

scholarly journals Impact of climate change and human activity on the runoff in the upper reaches of the Shiyang River, Northwest China

2014 ◽  
Author(s):  
Peng Li ◽  
Jianhua Xu ◽  
Zhongsheng Chen ◽  
Benfu Zhao
Keyword(s):  
Climate Change ◽  
Human Activity ◽  
Climatic Factors ◽  
Meteorological Data ◽  
Northwest China ◽  
Potential Evaporation ◽  
The Past ◽  
Shiyang River Basin ◽  
Runoff Change ◽  
Increasing Trend

Based on the hydrological and meteorological data of the upper reaches of Shiyang River basin in Northwest China from 1960 to 2009, this paper analyzed the change in runoff and its related climatic factors, and estimated the contribution of climate change and human activity to runoff change by using the moving T test, cumulative analysis of anomalies and multiple regression analysis. The results showed that temperature revealed a significant increasing trend, and potential evaporation capacity decreased significantly, while precipitation increased insignificantly in the past recent 50 years. Although there were three mutations in 1975, 1990 and 2002 respectively, runoff presented a slight decreasing trend in the whole period. The contributions of climate change and human activity to runoff change during the period of 1976-2009 were 45% and 55% respectively.

scholarly journals Assessing the Spatial Pattern of Irrigation Demand under Climate Change in Arid Area

2020 ◽  
Vol 9 (9) ◽  
pp. 506
Author(s):  
Liping Wang ◽  
Shufang Wang ◽  
Liudong Zhang ◽  
Mohamed Khaled Salahou ◽  
Xiyun Jiao ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
Spatial Pattern ◽  
General Circulation ◽  
General Circulation Models ◽  
Northwest China ◽  
Arid Areas ◽  
Irrigation Demand ◽  
Balance System ◽  
Rcp 8.5

Studying the pattern of agricultural water demand under climate change has great significance for the regional water resources management, especially in arid areas. In this study, the future pattern of the irrigation demand in Hotan Oasis in Xinjiang Uygur Autonomous Region in Northwest China, including Hotan City, Hotan County, Moyu County and Luopu County, was assessed based on the general circulation models (GCMs) and the Surface Energy Balance System model (SEBS). Six different scenarios were used based on the GCMs of BCC_CSM1.1, HadGEM2-ES and MIROC-ESM-CHEM under the Representative Concentration Pathway (RCP) 4.5 and RCP 8.5. The results showed that the method integrating the GCMs and SEBS to predict the spatial pattern was useful. The irrigation demand of Hotan Oasis will increase in 2021–2040. The annual irrigation demand of Hotan City is higher, with 923.2 and 936.2 mm/a in 2021–2030 and 2031–2040, respectively. The other three regions (Hotan County, Moyu County and Luopu County) are lower in the six scenarios. The annual irrigation demand showed a spatial pattern of high in the middle, low in the northwest and southeast under the six scenarios in 2021–2040. The study can provide useful suggestions on the water resources allocation in different regions to protect water resources security in arid areas.

scholarly journals The Runoff Evolution and the Differences Analysis of the Causes of Runoff Change in Different Regions: A Case of the Weihe River Basin, Northern China

2019 ◽  
Vol 11 (19) ◽  
pp. 5295 ◽  
Author(s):  
Shuoyang Li ◽  
Guiyu Yang ◽  
Hao Wang
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
River Basin ◽  
Human Activity ◽  
Factors Affecting ◽  
Runoff Reduction ◽  
Runoff Change ◽  
Weihe River ◽  
Weihe River Basin ◽  
Impacts Of Human Activity

The runoff levels of the major hydrological stations in the Weihe river basin (WRB) have been found to present decreasing trends. However, the conspicuous spatial differences in the hydro-meteorological conditions have led to variations in the rainfall–runoff pattern in each of the sub-basin areas. The aims of this research study were to reveal the main factors contributing to the runoff changes in the different regions—and it has significance in the water resources rational allocation and protection in the different regions. Three statistical methods were used to analyze the law of precipitation and runoffs of five hydrological stations. The SWAT (Soil and Water Assessment Tool) model was used to reconstruct the runoff in the impact period. The effects of climate change and human activity on runoff were separated by comparing measured runoff and reconstructed runoff. The results show that the closer the proximity to the downstream hydrological station, the more the runoff decreased. In the tributaries and upstream hydrological stations (Zhuanhtou (ZT), Zhangjiashan (ZJS), and Linjiacun (LJC)), from 1970 to 2016, the dominant factor of the runoff reduction was determined to be climate change, and accounted for 148.2%, 98.9%, and 90.5%, respectively. In the hydrological stations of middle and lower reaches (Xianyang (XY) and Huaxian (HX)), the contributions of the climate change to the runoff reduction were 49.7% and 44.3%, respectively, and the impacts of human activity accounted for 50.3% and 55.7%. The impacts of human activity on the runoff reduction were slightly greater than that of the climate change. Due to the different leading factors affecting runoff change in the basin, in response to future climate change, for tributaries and upstream areas, land use should be rationally planned to achieve the optimal balance of water volume in each part of the basin, which is of great significance to the protection and utilization of water resources. As for the middle and downstream regions, reasonable planning should also be focused on the amount of water withdraw, water resource allocations, and water conservancy project construction. According to the factors affecting runoff, corresponding strategies are proposed for different regions, which have important research significance for the protection and sustainable development of watershed water resources.

scholarly journals Detection and Attribution of Runoff Reduction of Weihe River over Different Periods during 1961–2016

Water ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1416 ◽  
Author(s):  
Shuai Yang ◽  
Tingting Kang ◽  
Jingyi Bu ◽  
Jiahao Chen ◽  
Zhipeng Wang ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
Human Activity ◽  
Water Yield ◽  
Infiltration Capacity ◽  
Detection And Attribution ◽  
Runoff Reduction ◽  
Runoff Variability ◽  
Weihe River ◽  
Stage Characteristic

An obvious decline in runoff of the Weihe River has been detected during the last half-century. Climate change and human activity acted as two major factors inducing the reduction. However, little knowledge is acquired on how and to what extent the decadal climate change and human activity induced runoff variations, which is essential for regional water resources planning and management. In this study, the observed data of 3 hydrological stations and 31 meteorological stations were used to analyze the runoff variability, and Variable Infiltration Capacity (VIC) model (Xu Liang, Seattle, WA, United States of America) coupled with scenario simulation was employed to attribute runoff variation of each period. The results showed that runoff decreased significantly at a rate of −1.01 × 108 m3·year−1 with obvious stage characteristic during 1961–2016. The water yield was highest in the 1960s and varying degrees of decline were detected in the following periods, resulting in a decrease of available freshwater by 20.54%–58.24%. Human activity had a dominant contribution to induce an increasing runoff decline from 2.068 to 5.776 km3, while the effect of climate was relatively small and lead to runoff reduction, except in the 1970s. This study gave a comprehensive understanding of time-varying runoff variability and highlighted the importance of appropriate human intervention with respect to climate change to ensure water resources security.

Effects of climate change on water resources in Tarim River Basin, Northwest China

2007 ◽  
Vol 19 (4) ◽  
pp. 488-493 ◽  
Author(s):  
Ya-ning CHEN ◽  
Wei-hong LI ◽  
Chang-chun XU ◽  
Xin-ming HAO
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
River Basin ◽  
Northwest China ◽  
Tarim River ◽  
Tarim River Basin
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