Effects of Artificial Water Withdrawal on the Terrestrial Water Cycle in the Yangtze River Basin

Clarifying the response of the terrestrial water cycle to the influence of climate change and human activities and accurately grasping the variations in the water cycle and water resources under the changing environment are the scientific basis for achieving the sustainable development of the Yangtz...

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Published inWater (Basel) Vol. 14; no. 19; p. 3117
Main Authors Wang, Hejia, Hou, Baodeng, Yang, Mingxiang, Xiao, Weihua, Wang, Hao
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.10.2022
Subjects
Analysis
Aquatic resources
artificial water withdrawal
Changing environments
China
Climate change
Climatic changes
Data assimilation
Datasets
Drainage
Environmental changes
Groundwater
Groundwater levels
Human influences
Humidity
Hydrologic cycle
Hydrology
land surface model
Mathematical models
Precipitation
Radiation
Regions
River basins
Rivers
Simulation
Soil moisture
Sustainable development
Temperature
the Yangtze River Basin
Topography
Vegetation
Water consumption
water cycle
Water intake
Water intakes
Water pollution
Water resources
Water table
Water-supply
China
Poyang Lake
Yangtze River
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Summary:Clarifying the response of the terrestrial water cycle to the influence of climate change and human activities and accurately grasping the variations in the water cycle and water resources under the changing environment are the scientific basis for achieving the sustainable development of the Yangtze River Economic Belt. In this paper, a dataset of rasterized water consumption in the Yangtze River Basin was constructed, and an artificial water withdrawal module considering the process of water intake, water consumption and drainage was designed, which was coupled with the land surface model CLM4.5. Based on the multi-scale validation in the Yangtze River Basin, two numerical simulation experiments were carried out to reveal the impact of artificial water withdrawal on the water cycle process in the Yangtze River Basin. The results indicate that artificial water withdrawal leads to an 0.1–0.3 m increase in groundwater table depth in most areas of the basin, and agricultural irrigation leads to a 0–0.03 mm3/mm3 increase in soil moisture in most areas. Climate change dominates the variation of discharge in the Yangtze River basin and leads to an increase in discharge at most stations.
ISSN:2073-4441
2073-4441
DOI:10.3390/w14193117