Articles | Volume 25, issue 10
Hydrol. Earth Syst. Sci., 25, 5623–5640, 2021
Hydrol. Earth Syst. Sci., 25, 5623–5640, 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 et al.

Data sets

Vegetation Greening Significantly Reduced the Capacity of Water Supply to China’s South-North Water Diversion Project Jiehao Zhang, Yulong Zhang, Ge Sun, Conghe Song, Matthew P. Dannenberg, Jiangfeng Li, Ning Liu, Kerong Zhang, and Quanfa Zhang

Water resources information retrieval system Department of Water Sources of Hubei Province, China

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.