Water environment-economic coupling simulation model and its application in non-point source pollution simulation

Abstract

The application discloses a water environment-economy coupling simulation model and application thereof in non-point source pollution simulation, and relates to the technical field of water environment simulation, which is characterized by the following contents: a social economy module and an ecological hydrological model SWAT based on an empirical mathematical programming method are established, and the established social economy module and ecological hydrological model are calibrated; a water environment-economy coupling simulation model based on the social economy module and the ecological hydrological model and a solution method thereof are established. The application can simulate and predict the influence of different water resource and environment management strategies on the income, water consumption, nitrogen and phosphorus non-point source pollution spatio-temporal distribution and the like of farmers by changing the planting behavior of farmers, so as to provide adaptive water resource and environment management strategies such as adaptive water price, water resource allocation strategy and organic fertilizer subsidy strategy for decision makers in different regions, and achieve the multiple goals of increasing the income of farmers, saving water and reducing emission, improving water quality and the like, and has important economic and social values.

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