Fuxian Lake Basin Based on MCR Model Risk Identification of Nonpoint Source Pollution

Non-point source pollution is one of the main water ecological environment problems in Fuxian Lake Basin. How to control non-point source pollution through landscape pattern optimization has always been a hot research issue. With the help of the least cumulative resistance model, this paper takes Fuxian Lake Basin as the research object, identifies the risk pattern of non-point source pollution in Fuxian Lake Basin, and simulates and optimizes the risk of non-point source pollution in the basin on this basis. The results show that the face value of non-point source resistance of building land is larger than that of cultivated land, and the spatial characteristics of non-point source pollution resistance surface under the influence of two types of source landscapes show that the spatial range of high value area is smaller than that of low value area. It is suggested that the local government should make a good plan for sustainable agricultural development and pay attention to the application and promotion of agricultural eco-friendly technology to reduce the production of agricultural non-point source pollution from the source.