Agricultural region water resource environment diagnosis method and system

Abstract

The invention relates to an agricultural region water resource environment diagnosis method. The agricultural region water resource environment diagnosis method is characterized by comprising the first step of building an evapotranspiration model and a runoff model and diagnosing agricultural region water according to the evapotranspiration model and the runoff model, the second step of building a non-point source pollution model and diagnosing agricultural region non-point source pollution, and the third step of diagnosing the agricultural region water resource environment according to diagnosis on the agricultural region water and the non-point source pollution. The method not only takes space difference, caused by nonuniformity of underlying surfaces of different planting structures, between total water and irrigation water into consideration, but also takes different non-point source pollution drainage intensities of the underlying surfaces into consideration, and can effectively diagnose a water resource environment problem.

Description

technical field [0001] The invention relates to the technical fields of ecohydrology and remote sensing, in particular to a method and system for diagnosing water resource environments in agricultural areas. Background technique [0002] The agricultural area refers to the area where planting is the main industry, which not only produces food crops and economic crops, but also manages forestry, animal husbandry, and fishery. It is the largest supplier of food and economic crop products, and also the main production area of ​​various agricultural and sideline products such as light industrial raw materials, livestock and poultry products, and aquatic products. [0003] my country's arid and semi-arid areas account for nearly 60% of the country's land area, while agricultural water use continues to be extensively managed. According to statistics, the grain output per unit of water used in my country's farmland is less than 2.4 catties / m3, while the world's advanced level is 4 ...

AI Technical Summary

Problems solved by technology

[0010] Aiming at the above situation, the present invention provides a method and system for diagnosing the water resource environment in agricultural areas. Non-point source pollution discharge intensity can effectively diagnose water resources and environmental problems

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