ORIGINAL RESEARCH article
Front. Environ. Sci.
Sec. Water and Wastewater Management
Volume 13 - 2025 | doi: 10.3389/fenvs.2025.1600583
Study on multi-scenario and multi-water source allocation in Henan water supply area of Yellow River considering extreme drought
Provisionally accepted
- 1Tianjin University, Tianjin, Tianjin, China
- 2Yellow River Engineering Consulting Co., Ltd., Zhengzhou, China
- 3State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing, China
- 4Key Laboratory of Water Safety for Beijing-Tianjin-Hebei Region of Ministry of Water Resources, Beijing, China
- 5Yellow River Conservancy Commission, Zhengzhou, Henan Province, China
- 6North China University of Water Conservancy and Electric Power, Zhengzhou, China
- 7Key Laboratory of Water Management and Water Security for Yellow River Basin, Ministry of Water Resources（under construction）, Zhengzhou, China
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The water supply of water resources allocation under extreme drought is insufficient, and the limited available water resources make it urgent to tap the potential of water supply. In this study, the Yellow River water supply area in Henan Province is taken as an example to study the multi-water source allocation under extreme drought. According to the Palmer Drought Severity Index (PDSI), the extreme drought years are selected, and the water supply and demand balance in the extreme drought years is analyzed, and the water shortage degree of each water supply area is obtained. In this study, unconventional water, flood resource utilization and elastic exploitation of groundwater are used as potential water sources. Different water supply scenarios are set up according to different potential tapping measures, and multi-scenario supply increase under extreme drought is explored. In the case of severe drought, the amount of potential tapping water has been significantly improved through different scenarios of potential tapping measures. The amount of potential tapping water in the three scenarios is 1.499 hundred million m 3 , 2.745 hundred million m 3 and 3.991 hundred million m 3 . Under different water supply scenarios, the total water shortage has been reduced from 4.555 hundred million m 3 to 3.054 hundred million m 3 , 1.808 hundred million m 3 and 0.562 hundred million m 3 , respectively. The total water shortage rate decreased from 31.07% to 20.83%, 12.33% and 3.83%, respectively. A multi-water source allocation model with the goal of minimizing water shortage is constructed, and a multi-scenario supply increase allocation scheme is proposed, which provides a basis for the
Keywords: Eco-hydrology process, land use, adaptive management, climatic change, water balance
Received: 27 Mar 2025; Accepted: 09 Jul 2025.
Copyright: © 2025 Zheng, Wang, Wang, Ma and Wan. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Weihao Wang, State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing, China
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