Based on the driving force-pressure-state-impact-response(DPSIR)model,taking the Yangtze River midstream city cluster as the research object,22 indicators affecting urban ecological security were selected and combined with entropy weight method and principal component analysis method to evaluate and study the ecological security of the Yangtze River midstream city cluster in 2018.The results show that the ecological security of the 30 cities in the region can be divided into four levels:relatively safe but critical,relatively unsafe but critical,moderately unsafe including a few critical cities,and significantly unsafe.Clarifying the regional ecological security levels provides a scientific basis for ecological civilization construction and ecological security assurance in the urban agglomerations of the middle reaches of the Yangtze River.
关键词
DPSIR模型/长江中游城市群/生态安全评价
Key words
DPSIR model/urban agglomeration in the middle reaches of the Yangtze River/ecological security evaluation
维普
万方数据