基于主成分模糊评价分析的干旱区土地利用生态安全评价

Ecological Security Assessment of Land Use in Arid Area on Principal Component Fuzzy

选取新疆干旱区乌鲁木齐市、克拉玛依市、石河子市和五家渠市4市为研究对象,结合其土地生态利用指标,构建4个城市的土地利用生态安全评价指标体系,运用主成分和模糊综合分析法,得出4市的评价等级。结果表明:乌鲁木齐市、克拉玛依市、石河子市、五家渠市的评价等级得分为2.323 672、2.675 64、2.391 087、1.961 43,乌鲁木齐市、克拉玛依市和石河子市的评价值都大于2,说明土地利用生态为安全,而五家渠市的土地利用生态为一般。总的来说,这4个市的土地利用生态都为安全。基于评价结果分析,最后提出了提升土地利用生态安全水平的对策建议。

This paper selects the arid area of Xinjiang Urumqi City, including Karamay, Shihezi, Wujiaqu as the research object. It is combined with the ecological land use index in construction of land use of 4 cities of ecological security evaluation index system. We have used principal component analysis method and fuzzy comprehensive evaluation for 4 city - level. The results show that the evaluation of Urumqi, Karamay, Shihezi, Wujiaqu will rate score of 2.323 672, 2.67 564, 2. 391 087, 1.96 143. Urumqi City, Karamay city and the evaluation of Shihezi city value is bigger than 2. This indicates that the ecological security of land use, land use and ecological Wujiaqu city should be in general. Overall, the 4 cities of land use and ecology are in security. Based on the analysis of the evaluation results, the paper puts forward some suggestions on how to improve the level of ecological security of land