摘要
山水林田湖草是一个生命共同体。其中,土地生态安全关系到这个生命共同体的可持续健康发展,也反映着土地生态系统的整体健康状态。本文以北京市海淀区为例,以经典EES模型为框架构建出土地生态安全评价指标体系,通过经典层次分析法确定指标权重,根据土地生态安全综合指数对海淀区的土地生态安全进行定量与定性评价分析。
The mountain,water,forest,farmland,lake and grass is a community of life. The land ecological security is related to the sustainable and healthy development of this community of life,and also reflects the overall health of the land ecosystem. Taking Haidian District of Beijing as an example,this paper constructs the evaluation indicator system of the land ecological security with the classic EES model as the framework,determines the indicator weight through the classical hierarchy analysis method,and makes quantitative and qualitative evaluation of the land ecological security in Haidian District according to the comprehensive index of land ecological security. The results show that the level of land ecological security in Haidian District appeared an upward trend in 2012-2016,and its comprehensive index reached the highest 61. 38( "Ⅱ safer"level)in 2015,an increase of 47. 2% compared to 2014;During 2012-2016,the overall trend was rising at the environmental and economic level,but fluctuated widely at the social level,the most prominent indicators is population density,population growth rate and per capita share of public green space. The result shows that the comprehensive index analysis method has some guiding significance to the evaluation of regional land ecological security.
作者
茹小斌
孙玮健
牛劲达
RU Xiaobin;SUN Weijian;NIU Jinda(Beijing Land Resources Survey and Planning Center,Beijing 100013;College of Information and Electrical Engineering,China Agricultural University,Beijing 100083)
出处
《环境与可持续发展》
2019年第6期145-148,共4页
Environment and Sustainable Development
基金
北京市国土资源环境承载力研究项目(2018)
国土资源部公益性行业科研专项(20131100201)
