西安市土地生态安全评价研究

A Study of Land Ecological Security Evaluation in Xi'an

利用PSR模型和一个基础准则层构建了土地生态安全评价指标体系,并通过熵值法确定了指标权重,然后选取2006—2015年西安市有关土地生态安全数据对其进行分析。结果发现:2006—2015年西安市土地生态安全指数总体呈上升趋势,但在2012及2014年西安市土地生态安全指数明显下降。最后针对西安市土地生态安全存在的问题提出具体的改进措施,以提升西安市土地生态安全指数,保证西安市农工商经济的协调稳定发展。

This paper uses PSR model and a basic criterion layer to construct the evaluation index system,and determine the index weight by the entropy method.Then the further analysis is carried out on the data of land ecological security in Xi'an from 2006 to 2015.Therefore,it is concluded that the land ecological security index is on the rise in the ten years from 2006 to 2015 in Xi'an,but in 2012 and 2014,there is a great decrease in the land ecological secrity index.Finally,this paper puts forward some corresponding improvement strategies against existing problems in order to increase the index of land ecological security in Xi'an and guarantee the coordinate and stable development of agricultural,industrial and commerce in Xi'an.