A study on sustainable utilization of eco-agricultural resources in wet-land of Dongting Lake

This paper analyses the wet-land resources characteristics and present conditions of agricultural exploitation,making function evaluation to ecological agricultural resources in wet-land of Dongting Lake.Based on the characteristics of circular soild landscape in wet-land round basin,i.e. concentric circles shape，lake basin central belt,lake edge middle ring belt,outer circles ring belt,many ecological agriculture models that adjust to the exploitation of ring belt wet-land resources are discussed,so as to reach the good of protecting wet-ecology,sustainable utilization of wet-land resources and attaching importance to ecological and economic benefits.