安徽省沿江地区土地生态安全评价

Evaluation of Land Ecological Security in Areas along Changjiang River in Anhui Province

以安徽省沿江地区为研究对象,在对土地生态安全理论进行总结的基础上,根据研究区的实际情况,建立了土地生态安全评价指标体系,运用层次分析和信息熵等数学方法,计算了2006年研究区各市土地生态安全综合评价值。研究结果表明,芜湖市、池州市、安庆市、宣城市、巢湖市和滁州市的土地生态安全评价等级为Ⅳ级(良好);合肥市和马鞍山市的土地生态安全评价等级为Ⅲ级(一般);铜陵市的土地生态安全评价等级为Ⅱ级(较差)。通过对评价结果的分析,为该区土地生态安全建设提供科学依据。

In this paper,talking areas along the Changjiang River in Anhui Province as the study area,based on summing up the theory of the land ecological security,according to the actual situation of the study area, a land ecological security evaluation index system was established. By adopting the principle of systematic analysis, the information entropy and other mathematical methods, calculation for the year 2006 status of the study area was carried out. The results showed that the land ecological security in Wuhu, Chizhou, Anqing, Xuancheng, Chaohu and Chuzhou were in Ⅳ grade level（good） ; Hefei and Ma＇anshan were in the Ⅲ grade level（general） ; Tongling was in the Ⅱ grade level （worse）. In order to providing a scientific basis to the eonstruction of the land ecological security in the area,the evaluations of the results were analyzed.