Articles | Volume 30, issue 21
https://doi.org/10.5194/hess-30-6963-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-30-6963-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Is earlier always better? A comparative assessment of an early-stage response window for rainfall timing in multiyear drought alleviation in China
Yichen Zhang
School of Ecology, Hainan University, Haikou, 570228, China
Fubao Sun
Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
Wenbin Liu
Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
Jie Zhang
CORRESPONDING AUTHOR
School of Ecology, Hainan University, Haikou, 570228, China
Wenli Lai
School of Geography and Environmental Sciences, Hainan Normal University, Haikou, 571158, China
Jiquan Lin
Hainan Provincial Ecological Environment Monitoring Center, Haikou, 571126, China
Wenchao Sun
College of Water Sciences, Beijing Normal University, Xinjiekouwai Street 19, Beijing, 100875, China
Wenjie Liu
School of Ecology, Hainan University, Haikou, 570228, China
Zhongyi Sun
School of Ecology, Hainan University, Haikou, 570228, China
Peng Wang
School of Ecology, Hainan University, Haikou, 570228, China
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Short summary
Multiyear droughts (MYD) greatly affect ecosystems and human life. Using historical MYDs in China (1991–2020) and numerical experiments, we assessed how rainfall timing affects MYD alleviation. We found an early-stage response within the first three months of MYD, where rainfall is generally most effective. Within this window, the second and third months may exceed the first month, especially in drier regions and longer MYDs. These findings highlight rainfall timing in MYD alleviation.
Multiyear droughts (MYD) greatly affect ecosystems and human life. Using historical MYDs in...
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