Research on the Soil and Water Conservation Division Management Mode in Erhai Lake Basin

Located in the central area of Dali in Yunnan Province, the Erhai Lake Basin is an important agricultural industry base in China with its unique geographical and climate conditions, etc. However, the agricultural structure and land-use patterns in the basin have had some impact on the water environment in Erhai Lake Basin, and soil and water loss and the agricultural area pollution are important factors in the water eutrophication in the basin. By conducting the sub area survey of the soil and water loss in Erhai Lake Basin, the article aims to find out important contributions factors for crop species through the analysis of the grey correlation degree and to make division management in the basin on the basis of water conservation, so as to guarantee the increase of the level of agricultural development on the basis of protecting the water environment of Erhai Lake Basin.