Optimal Water Resources Regulation for the Pond Irrigation System Based on Simulation—A Case Study in Jiang-Huai Hilly Regions, China

Shangming Jiang, Shaowei Ning, Xiuqing Cao, Juliang Jin, Fan Song, Xianjiang Yuan, Lei Zhang, Xiaoyan Xu and Parmeshwar Udmale
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Shangming Jiang: Key Laboratory of Water Conservancy and Water Resources of Anhui Province, Water Resources Research Institute of Anhui Province and Huaihe River Commission, Ministry of Water Resources of the People’s Republic of China, Hefei 230088, China
Shaowei Ning: School of Civil Engineering, Hefei University of Technology, Hefei 230009, China
Xiuqing Cao: Key Laboratory of Water Conservancy and Water Resources of Anhui Province, Water Resources Research Institute of Anhui Province and Huaihe River Commission, Ministry of Water Resources of the People’s Republic of China, Hefei 230088, China
Juliang Jin: School of Civil Engineering, Hefei University of Technology, Hefei 230009, China
Fan Song: Information Center (Hydrology and Water Resources Monitoring and Forecasting Center), The Ministry of Water Resources of the People’s Republic of China, Beijing 100053, China
Xianjiang Yuan: Key Laboratory of Water Conservancy and Water Resources of Anhui Province, Water Resources Research Institute of Anhui Province and Huaihe River Commission, Ministry of Water Resources of the People’s Republic of China, Hefei 230088, China
Lei Zhang: Shenyang Academy of Environmental Sciences, Shengyang 110000, China
Xiaoyan Xu: School of Civil Engineering, Hefei University of Technology, Hefei 230009, China
Parmeshwar Udmale: Department of Civil and Earth Resources Engineering, Kyoto University, Kyoto 615-8540, Japan

IJERPH, 2019, vol. 16, issue 15, 1-18

Abstract: Due to the importance and complexity of water resources regulations in the pond irrigation systems of the Jiang-Huai hilly regions, a water allocation simulation model for pond irrigation districts based on system simulation theory was developed in this study. To maximize agricultural irrigation benefits while guaranteeing rural domestic water demand, an optimal water resources regulation model for pond irrigation districts and a simulation-based optimal water resources regulation technology system for the pond irrigation system were developed. Using this system, it was determined that the suitable pond coverage rate (pond capacity per unit area) was 2.92 × 10 5 m 3 /km 2 . Suitable water supply and operational rules for adjusting crop planting structure were also developed the water-saving irrigation method and irrigation system. To guarantee rural domestic water demand, the multi-year average total irrigation water deficit of the study area decreased by 4.66 × 10 4 m 3 /km 2 ; the average multi-year water deficit ratio decreased from 20.40% to 1.18%; the average multi-year irrigation benefit increased by 1.11 × 10 5 RMB (16,128$)/km 2 ; and the average multi-year revenue increased by 6.69%. Both the economic and social benefits were significant. The results of this study provide a theoretical basis and technological support for comprehensive pone governance in the Jiang-Huai hilly regions and promote the establishment of a water allocation scheme and irrigation system for pond irrigation districts, which have practical significance and important application value.

Keywords: water resources regulation; simulation; water-saving irrigation method; Jiang-Huai hilly regions (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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