Data exploration and study on the results of the reform of the collectively-owned forestrights system

摘要

After the results of the reform of the collectively-owned forest rights system, there will be a large database including the graphics and the corresponding attribute data This paper has studied the spatial structure of forest resource such as the spatial concentration, diversity, evenness based on the data of Yiliang County, Yunnan province. According to the standards of mountain forest coverage in China and Yunnan province and the situation of the township, the forest cover has been broadly classified into four grades. This paper also analyzed the proportion of forest land ownership between the personal contract and collectively-owned in different township. The aggregation of spatial distribution of forest resources has been determined through the entropy, after calculated G = 0.628.It shows that the aggregation of spatial distribution of Yiliang country is not large. The diversity or evenness of spatial distribution of forest resources has also been discussed. From the study we can see that the data of the reform of the collectively-owned forest rights system can provide good foundation for the research of sustainable forest development and planning.