Articles | Volume 25, issue 10
https://doi.org/10.5194/hess-25-5623-2021
https://doi.org/10.5194/hess-25-5623-2021
Research article
 | 
28 Oct 2021
Research article |  | 28 Oct 2021

Vegetation greening weakened the capacity of water supply to China's South-to-North Water Diversion Project

Jiehao Zhang, Yulong Zhang, Ge Sun, Conghe Song, Matthew P. Dannenberg, Jiangfeng Li, Ning Liu, Kerong Zhang, Quanfa Zhang, and Lu Hao

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Latest update: 01 Apr 2023
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Short summary
To quantify how vegetation greening impacts the capacity of water supply, we built a hybrid model and conducted a case study using the upper Han River basin (UHRB) that serves as the water source area to the world’s largest water diversion project. Vegetation greening in the UHRB during 2001–2018 induced annual water yield (WY) greatly decreased. Vegetation greening also increased the possibility of drought and reduced a quarter of WY on average during drought periods.