Gengma county in Lincang is not chaotic. According to relevant data, Gengma has a good ecological environment and abundant natural resources: more than 90% of the county's land is distributed in tropical and subtropical areas, with an altitude of 450-3,323 meters, with obvious three-dimensional climate characteristics, with an annual average rainfall of 65,438 0.420 mm and an annual average temperature of 65,438 0.9.2℃. There are 77 rivers in the county, including Nanting River and Nanbi River. The county is rich in mineral resources, with 17 kinds of minerals. Sugarcane, rubber, tea, walnut, flue-cured tobacco, coffee, nuts, vegetables, konjac and other characteristic industries have developed rapidly. 20 14 was awarded the title of Yunnan plateau characteristic agriculture demonstration county. Gengma is the national grain and sucrose production base, the main private rubber producing area in Yunnan, the hometown of tielimu, the hometown of steamed enzyme tea, and rich in land resources and biological resources.