Acquisition of Urban Green Space Information and Evaluation of Ecological Benefit Based on RS and GIS

With satellite images data as the underlying data source,and by using the RS and GIS technology,the computer supervised classification and visual interpretation were adopted to obtain the urban green space information and investigate the urban green space status of Beibei,the fuzzy evaluation model was used to evaluate the ecological benefit of different types of green space in urban Beibei.Results showed that the green space coverage in urban Beibei was 37.34%,the ecological benefits of the attached green space and other green lands were the highest,then followed by productive green land,at last park green land and protective greenland.