GIS Environmental Analysis on Converting Cultivated Land into Forest-Case Study from Gongshan Program,Yunnan Province

摘要

Reforest the cultivated land is one of the essential project for protecting the ecological environment as well as soil and water conservation. At the same time, it's an important way to improve ecological environment and promote sustainable economic development in the region. The states social and economic development is restricted by the Remote terrain, natural and man-made factors and Eco-environmental degradation of the. By using GIS technology, combined with the principle of converting cultivated land to forest and with the research method of spatial analysis, this paper do overlay analysis for data, such as land use, slope, river and so on. It results in acquiring the areas of converting cultivated land to forest and investigating its timing and Forest distribution. At last determine the key area of converting cultivated land to forests. In this paper, Forest County, Yunnan Province, Gongshan Nujiang study program, GIS environment, returning farmland to forest planning analysis of the specific implementation process. An investigation shows that need the areas of 2184.78 Square hectares for converting cultivated land to forest above 25 of slope in Gongshan, and the scope of the key area of Converting Cultivated Land To Forest is 479.31 hm2. Therefore, returning farmland to forest planning based on GIS technology to achieve the national Forest Engineering and scientific decision-making overall planning.