Evaluation of Land Ecological Security Based on Set Pair Analysis
Problems of land ecological security caused by the unreasonable utilization of land resource have influenced the sustainable development of society and economy. This paper selected areas along the Changjiang River in Anhui Province as study area. It constructed an evaluation index system of land ecological security based on Pressure-StateResponse model. Considering the illegibility and uncertainty in land ecological security evaluation, the paper combined set pair analysis and entropy method to establish an evaluation model. Then it evaluated land ecological security conditions of the above areas in 2007. The results show that land ecological security conditions of Xuancheng and Hefei belong to Ⅱ grade (relatively safe) and the other seven cities belong to Ⅲ grade (critically safe). On the whole, land ecological security conditions of the nine cities are unsatisfactory. The results provide reference for agricultural development and environmental protection.
land ecological security set pair analysis (SPA) entropy method
Zhu Jiulong
Zhongyuan University of Technology, Zhengzhou, Henan, 450007, China
国际会议
长沙
英文
1403-1406
2010-05-11（万方平台首次上网日期，不代表论文的发表时间）