基于PSR模型的环境承载力评价指标体系与应用研究—以武汉城市圈为例

Environment Carrying Capacity Evaluation System and Applied Research Based on PSR Model—A Case Study of Wuhan Metropolitan Area

摘要:

从“压力-状态-响应”模型(PSR)的作用机制出发,构建了包括系统压力、状态、响应的3个子系统,26项指标的环境承载力评价指标体系,运用熵值法赋权,结合模糊综合评价模型对武汉城市圈环境承载力进行实证分析。最后得出以下主要结论：近年来各城市以及城市之间环境承载力变化较明显,整个武汉城市圈环境状况从西北部向东南部地区逐渐递减；武汉和孝感市环境状状况有所改善,环境承载力逐渐增强,黄石、鄂州两地环境状况不断恶化,环境承载力逐渐下降,其他地区环境承载力变化相对较小；依据评价结果,建议武汉城市圈要继续加大环境治理力度,尤其是要改善大气环境质量,加强生态文明建设,提高废水、固体废弃物利用效率和处理率。

Abstract:

The article from the "pressure-state-response" model (PSR) mechanism，build including system pressure, state, response three sub-systems, 26 indicators of environment carrying capacity evaluation system, using entropy empowerment, combined with the fuzzy comprehensive evaluation model about environment carrying capacity of Wuhan metropolitan area Finally, researching the following major conclusions：（1）In recent years, the changes of environment carrying capacity between the cities are obvious, the whole environment of Wuhan metropolitan area gradually decreasing from the northwest to the southeast；（2）The environment situation has improved in Wuhan and Xiaogan, the environment carrying capacity gradually increased, the environment conditions has been worsen in Huangshi and Ezhou, the environment carrying capacity decreased, changes in environment carrying capacity is relatively light in other regions；（3）According to the evaluation results, Wuhan metropolitan area should continue make efforts to improve the environment, especially to improve the quality of atmospheric environment, strengthen the construction of ecological civilization, improve waste water, solid waste utilization efficiency and handling rates.