An Empirical Study on the Effect of Eco Agriculture Policy in Erhai River Basin

Abstract

This paper conducts difference-in-difference analysis on the production mode and hydro-environment of the within-policy area and outside-policy areas of Erhai basin by using DID model. The results show that: the impact of agricultural production mode on hydro-environment pollution is −12.59 under the policy, and ecological agriculture policies on agricultural production adjustment and optimization is of a significant effect, including agricultural working population, meat and milk production variables negatively correlated with water pollution index; chemical fertilizer, pesticide application is positively correlated with the amount of water pollution index. Conclusion of analysis: after ecological agriculture policy is implemented, the negative effect of optimization of agricultural production mode on river-related pollution has been eased within the policy-area, and agricultural output has increased. The five towns of ‘North Three River’ are more actively responded to the policy, compared to the eight towns around the river. Policy recommendations: “Culture + methane cycle of agriculture,” harmless agricultural cultivation, “soil testing + balanced fertilization”, returning farmland to forest ecology lake ecological agricultural policy - a significant economic effect for the whole basin area.