Articles | Volume 25, issue 5
https://doi.org/10.5194/hess-25-2705-2021
© Author(s) 2021. 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-25-2705-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
20 May 2021
Research article |
| 20 May 2021
| 20 May 2021
Causal effects of dams and land cover changes on flood changes in mainland China
Wencong Yang
Department of Hydraulic Engineering, Tsinghua University, Beijing,
100084, China
State Key Laboratory of Hydro-Science and Engineering, Tsinghua
University, Beijing, 100084, China
Department of Hydraulic Engineering, Tsinghua University, Beijing,
100084, China
State Key Laboratory of Hydro-Science and Engineering, Tsinghua
University, Beijing, 100084, China
Dawen Yang
Department of Hydraulic Engineering, Tsinghua University, Beijing,
100084, China
State Key Laboratory of Hydro-Science and Engineering, Tsinghua
University, Beijing, 100084, China
Aizhong Hou
Hydrological Forecast Center, Ministry of Water Resources of the
People's Republic of China, Beijing, 100053, China
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Short summary
This study quantified the causal effects of land cover changes and dams on the changes in annual maximum discharges (Q) in 757 catchments of China using panel regressions. We found that a 1 % point increase in urban areas causes a 3.9 % increase in Q, and a 1 unit increase in reservoir index causes a 21.4 % decrease in Q for catchments with no dam before. This study takes the first step to explain the human-caused flood changes on a national scale in China.
This study quantified the causal effects of land cover changes and dams on the changes in annual...
