基于熵权法的区域土地利用生态安全评价——以安徽省池州市为例

Evaluation about Ecological Security of Regional Land Use Based on Entropy Weight Method:A Case about Chizhou City, Anhui Province

在经济社会迅速发展的同时,人地关系的和谐越发得到人类的重视。随着经济社会的发展,土地资源遭到人类的破坏和污染,优质的土地资源对于人类来说是非常有限和宝贵的,土地生态安全已经成为国家安全的重要内容。本文以压力—状态—响应为框架模型,以科学性、全面性、区域性和可操作性为原则选取15个指标层,运用熵权法计算指标的权重,分析池州市2008年至2018年的数据,构建土地利用生态安全评价指标体系,以熵权法和综合指数法为主导方法计算出11年间池州市土地利用生态安全综合值。对池州土地生态安全进行了综合评判,并从多个方面提出维护土地生态安全的对策。

With the rapid development of economy and society,the harmony between human and earth has drawn more and more attention.With the development of economy and society,land resources are destroyed and polluted by human beings.High-quality land resources are very limited and precious for human beings.Land ecological security has become an important part of national security.The paper analysis the data about Chizhou city from 2008 to 2018 and constructs evaluation index system of ecological security of land use,using the framework of pressure-state-response model and using a scientific,comprehensive,regional and operability as the principle.The paper selects indicators for 15 layer to calculate weight of the index by using the entropy weight method and calculates the comprehensive value of ecological security of land use of the 11 years about Chizhou by the weight method and comprehensive index method dominated by entropy.The paper values the land ecological security about Chizhou comprehensively and put forward the countermeasures to maintain land ecological security from many aspects.