基于OLI及ASTER GDEM数据的云南砚山县致贫因子分析

The Analysis of Poverty Factors in Yanshan County of Yunnan Province Based on the Data of OLI and ASTER GDEM

砚山县地处云南文山中西部地区,是集"老、少、边、穷"为一体的典型岩溶山区,是国家扶贫开发工作重点县。选取OLI及ASTER GDEM数据为数据源,在地理信息技术的支持下,对砚山县致贫因子进行综合分析,结果表明砚山县的致贫因子主要有:植被覆盖率低、生态资产储量少;优质土地资源稀缺、水资源匮乏且分布不均;交通网络稀疏、可达性较差;产业单一而分布较为集中等。

Yanshan County is located in the central and western regions of Wenshan, Yunnan Province. Because it is located in the old revolutionary base areas, ethnic autonomous areas, border areas and underdeveloped areas and typical karst mountain area, which is the national key counties for poverty alleviation and development of China. By selecting OLI and ASTER GDEM as the data source, and using Geographical information technology, the paper comprehensively analyzes the causes of poverty of Yanshan County. The result shows that the factors are mainly include lower coverage of vegetation and lower reserves of ecological assets, lacking of high-quality land resources, water resources are scarce and unevenly distributed, sparse of the traffi c network and poor accessible, single industry and distributed concentration and so on.