科学地做出土地生态安全评价对于协调土地利用环节资源压力和维护区域土地生态安全具有关键的指导意义.选取河南省焦作市为研究区域,基于“压力—状态—响应”(P-S-R)模型,以土地生态安全评价为目标层,建立土地生态安全压力、状态和响应3个子系统的23项评价指标,构建河南省焦作市土地生态安全评价的指标体系;运用熵权法和综合指数法对2001~2010年焦作市4区6县的土地生态安全状况进行评价分析,并选取2001、2004、2008和2010年作为评价基准年,对焦作市各区县土地生态安全空间差异进行研究.
It is of crucial significance to make scientific evaluation of the safety for land ecological security for the coordination of land use aspects of regional land resources pressure and the maintenance of regional land ecological security.Jiaozuo city in Henan province was used as the research area.Three Criteria Layers based on 'pressure-state-response' (P-S-R) which was selected as the target layer to ensure the land ecological safety evaluation.A total of 23 indicators was selected to construct the index system of land ecological security evaluation of Jiaozuo city.The entropy weight method and comprehensive index method were used to evaluate land ecological security of all the four districts and six counties in Jiaozuo city from 2001 to 2010.Taking 2001,2004,2008 and 2010 as the basic standard year,the land ecological security of all districts in Jiaozuo city was evaluated.