Research on ecological security evaluation of urban agglomerations in the middle reaches of the Yangtze River based on the DPSIR model
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.
DPSIR modelurban agglomeration in the middle reaches of the Yangtze Riverecological security evaluation
万方数据
维普
