基于灰色关联模型的区域生态安全综合评价——以赣州市为例

Comprehensive Evaluation of Regional Ecological Security Based on Grey Correlation Model:Take Cangzhou City as an example

本文以赣州市18个县市为评价单元,基于PSR模型构建综合评价指标体系,集成熵权法和灰色关联评价模型,对研究区2016年生态安全综合指数、压力指数、状态指数和响应指数进行评价,并分析所得结果。结果表明,研究区目前的生态安全综合指数基本处于安全水平,生态环境状况较好;赣州综合生态安全形势在北部和南都地区差异较为明显。南部地区的生态安全水平优于中部和北部地区,生态压力总体情况更好,东北地区整体上比西南部好,章贡区生态压力情况较差;生态状态总体情况较差。南部地区的总体生态安全水平优于中部和北部地区;生态响应指数整体上处于临界安全水平,总体情况较好,会昌县生态响应较差。

Taking 18 counties and cities as evaluation units in Ganzhou, a comprehensive evaluation index system, an integrated entropy weight method and a gray correlation evaluation model were constructed based on PSR model to evaluate the comprehensive index, pressure index, state index and response index of ecological security in the research area in 2016, and the results were analyzed.The results show that the comprehensive index of ecological security in the study area is basically at a safe level and the ecological environment is in good condition.Ganzhou comprehensive ecological security situation in the north and south are different.The ecological security level of the southern region is better than that of the central and northern regions, and the overall ecological pressure is better than that of the southwest region.The overall ecological situation is poor.The overall ecological security level of the southern region is better than that of the central and northern regions.On the whole, the ecological response index is at the critical safety level.