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

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 × 105 m3/km2. 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 × 104 m3/km2; the average multi-year water deficit ratio decreased from 20.40% to 1.18%; the average multi-year irrigation benefit increased by 1.11 × 105 RMB (16,128$)/km2; 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.

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“…e method fully taps the water-saving potential of the irrigation area, improves the fairness of the initial water rights distribution, and can provide a scientific basis for the development of the water rights distribution of irrigation water users in the Yellow River irrigation area. Jiang et al [9] established a simulation model of water resource allocation in the pond irrigation area in view of the importance and complexity of water resource regulation in the pond irrigation system in the Jianghuai hilly and gully area. Setiaji et al [10] argue that the Internet of ings (IoT) has played a critical role in enhancing the intelligence already deployed in agriculture.…”

Multi-Objective Optimal Allocation of Water Resources Based on the NSGA-2 Algorithm While Considering Intergenerational Equity: A Case Study of the Middle and Upper Reaches of Huaihe River Basin, China

“…In terms of efficiency, Xu et al use economic benefits as one of the objective functions to measure the efficiency of water resources allocation [ 13 ]. Jiang et al constructed a simulation model of pond water allocation in the irrigation area to maximize the benefit of agricultural water use based on the water resources allocation [ 14 ]. In relation of equity, Alberto et al solve the problem of allocation from the perspective of water rights trading [ 15 ].…”