Study on the Classification of Industrial Brownfield Habitat in the Fourth Ring Road of Chengdu—Taking Chengdu Electric Power Hardware General Factory Former Site as an Example
Brownfield habitat is an integral part of urban habitat.The diversity and connectivity of urban habitat are the necessary conditions for urban biodiversity,and urban biodiversity is an important stand-ard for evaluating urban ecological quality.As cities turn to stock development,the humanistic value and potential positive ecological value of brownfields in urban built-up areas have been paid more and more at-tention.In this paper,Chengdu Electric Power Hardware General Factory which located inside the Fourth Ring Road of Chengdu City is selected as the research object.First,combining the classification method of urban habitat types and the classification method of industrial brownfield,a habitat type classi-fication system of industrial brownfield under urban scale is constructed.The type of power hardware factory under urban scale is defined,and the habitat characteristics under this scale are summarized.Sec-ondly,based on the study of the impact factors of habitat type classification,according to the type differ-entiation led by different factors,the habitat type classification system of industrial brownfield under the site scale was constructed,and the naming method of niche habitats was proposed.The results showed that under the dominance of the three direct factors of light,soil and water,there were 11 types of pri-mary habitats in the factory.According to the indirect factor characteristics of each category,there are 24 types of specific habitats in the sample plots,which have different environmental characteristics and vege-tation composition characteristics.The classification of habitat types is the first step in the study of habi-tat.This paper takes the industrial brownfield in the Fourth Ring Road of Chengdu as an example to dis-cuss the classification of brownfield habitat types,hoping to provide support for the study of brownfield habitat and provide scientific guidance for the subsequent brownfield reuse and urban park construction.