The Research on the Model of Urban Ecological Security

摘要

Because of the security of the urban ecological environment which is made of interaction of city resident and natural ecological environment concern the sustainable development of society, it’s very significance to study the subject of the city ecological security. The structure of urban ecological model is established by using of pressure-state-response index system, adopting the principal component analysis to study the various index evaluation. With its conclusion, the government would make effective measures and methods to keep the development between human society and natural environment in sustainable and harmonious. I choose the city of Harbin, Shenyang, Jinan, from 2005 to 2009, as the empirical analysis to study and analysis ecological situation of the cities in the years.