在DEA评价的基础上进一步分析了天门市、松滋市、洪湖市三个地区的耕地产出与投入有效性。

At the basis of DEA evaluation, the thesis analysis of the effectiveness of outputs and inputs of Tianmen city, Songzi city and Honghu city.

通过对洪湖市的典型调查，分析了农业非点源污染的形成原因，探讨了防治非点源污染的措施。

Through the typical investigation in Honghu City, the cause of forming non-point source pollution was analyzed.