Based on RS and GIS

overlayed the soil type data with terrain slope data

soil erosion data

rainfall data and temperature data to evaluate the land suitableness. The trait of land resource had been used to diagnose the farm land

forest land and herd land

and to balance the degree of suitableness and unsuitableness. Then the land-use categories can be classified

which offer the accordance for land-use plan and identifying the spatial distribution of the reducing cultivated land to forest and grass.