THE STRUCTURE OF LAND RESOURCES AND THEIR RATIONAL UTILIZATION IN DABA MOUNTAINOUS REGION OF SICHUANG PROVINCE
四川大巴山区土地资源结构及合理利用

This paper analysed the effective factors to the structure of land resources in Daba mountainous region. It is considered that the vertical differentiation of land form and the relevant climate are the most important factors to the structure of land resources. Regarding these factors,the paper devides the land resources of this region into five major types based on the vertical differentiation of the two factors. Each . type of land resources has its distinct characters with which the agricultural diff-erentiation was connected. So far, the structure of land use is widely divergent from that of the productive sector in the Daba mountainous region. It has no been brought into fully play to the superiority of the land resources over the for-estry production.In order to rationally use land resources in the Daba mountainous region, this paper gives out some detailed suggestions. After carrying out the suggestions, a good ecologic environment will be expected in this region .