Abstract
Abstract Water is a key factor that controls the evolution of the ecosystem and restricts social and economic development. The rational allocation of water resources is the basis for the basin's sustainable use of water resources. The article uses fractional differential equations to discuss the increasingly prominent contradictions between supply and demand of agricultural water resources, serious pollution and overexploitation, the decline in groundwater level and water quality, low agricultural water efficiency, and serious waste from the perspective of sustainable development. Second, the article classifies the index system of the water resources carrying capacity evaluation model. Finally, model the resource balance of water supply and water demand in the irrigation area. The study found that the water quantity analysis and determination of the irrigation area will have important guiding significance for implementing the irrigation area's continued construction and water-saving transformation. The allocation and utilization of water resources in farmland irrigation areas will tend to be rationalized. This will greatly improve the water-saving efficiency of irrigation districts.
Highlights
Nowadays, China’s food security problem is outstanding
As the basic guarantee for increasing food production, the rational use and optimal allocation of water resources have become an important issue in agricultural food production [1]
This paper uses the water balance model to study and apply the specific problems of water resources in farmland irrigation areas. This can better guide the implementation of continuous construction and water-saving transformation in irrigation districts
Summary
China’s food security problem is outstanding. As the basic guarantee for increasing food production, the rational use and optimal allocation of water resources have become an important issue in agricultural food production [1]. This paper uses the water balance model to study and apply the specific problems of water resources in farmland irrigation areas. This can better guide the implementation of continuous construction and water-saving transformation in irrigation districts. Formulate water-saving measures based on the irrigation area’s conditions, and incorporate the water-saving transformation and continued construction of supporting projects in the irrigation area into the new schedule. In this way, farmland irrigation districts can be built into representative water-saving and high-efficiency medium-scale irrigation districts. There are no industrial water requirements in this irrigation area, and only agricultural water and domestic water needs are considered
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