Study On The Potential Productivity And Carrying Capacity Of Land In Dadoupu Of Wuchuan County

The research of land carrying capacity is a task involving resource, environment, population, society and development, it is a comprehensive study of land and population system. In this article the potential productivity and carrying capacity of land in Dadoupu of Wuchuan county are studied, applying the methods of agricultural ecological zoning, the emulated model of system dynamics and the method of interconnection tendency. The results are as follows:(1) The productivity of land is higher in Dadoupu, the average potential of grain is 44.37 percent of the potentiality of the annual precipitation, the potential of soil is 59.6 percent of the potentiality of climatic.(2) The land carrying capacity of cereal is7400-11000 people, it will reach to the maximum of carrying capacity at 2010 and 2015,the land unit carrying capacity is from 1.5 6 people in 2000 to 2.07 people in 2015 per hm2.(3) The carrying capacity in consumer construction is 10000people in Daduopu, and has same tendency with food's carrying capacity, it is sufficient at low level, and is overload or arrive the maximum of carrying capacity in a high consume impends.