长三角城市群生态环境脆弱性评价指标体系构建与实证

Construction and demonstration of ecological environment vulnerability evaluation index system in Yangtze River Delta urban agglomerations

考虑长三角城市群的地区差异性,基于可持续发展压力-状态-响应(Pressure-StateResponse,PSR)模型,综合运用最大相关最小冗余(mRMR)算法、集对分析、熵权法等,构建长三角城市群生态环境脆弱性评价差异化指标体系,并对生态环境脆弱性水平进行综合测度与分析.实证结果表明:1)该指标体系包含体现生态环境脆弱性的关键基础性指标和地域差异性特色指标,能反映长三角城市群脆弱性现状;2)整体上长三角城市群生态环境脆弱性指数水平分布比较均衡;3)区域内各省市空气污染、人口压力、环境保护层指数水平差异明显,其中,上海、合肥人口压力大;安徽空气污染严重;江苏环境保护比较薄弱.

Considering the regional differences of the Yangtze River Delta urban agglomeration,the ecological environment vulnerability assessment differences index system of the Yangtze River Delta urban agglomeration was constructed based on the sustainable development pressure-state-response(PSR)model and then the maximum relevance and minimum redundancy(mRMR)algorithm,set pair analysis,entropy weight method and so on were comprehensively used.Meanwhile,the vulnerability level of the ecologica environment was comprehensively measured and analyzed.The empirical results show that:1)The index system contains key basic indexes and regional characteristic indexes can reflect the vulnerability of the Yangtze River Delta urban agglomeration.2)The overall level distribution of the ecological environmen vulnerability index of the Yangtze River Delta urban agglomeration is relatively balanced.3)There are obvious differences in air pollution,population pressure and environmental protection among provinces and cities in the region,among which Shanghai and Hefei have the largest population pressure;Anhui province has the worst air pollution;Environmental protection is the weakest in Jiangsu.