| As the elementary producer of the urban ecological system,urban forest plays important roles to the sustainable development of city.Maintaining and improving ecological service function is the basis of sustainable development of city.This essay summarized the research and development at home and abroad of evaluation of forest eco-efficiency,and analysis e fixing carbon,keeping biodiversity,forest tourism and decontaminating air this four appropriate function of urban forest.According to the characteristics of urban forest,it discussed the evaluating indicator and assessment method of ecological service function value and evaluated Beijing forest ecological service assessment.The result of the total value is 497.16×108yuan·a-1,the values of each ecological service functions are following:fixing carbon 6.82×108yuan·a-1,keeping biodiversity473.52×108yuan·a-1, forest tourism 14.14×108yuan·a-1 and decontaminating air 2.68×108yuan·a-1.Combining the Present construction status and the destination demand of the urban forest of Beijing,according to the basic Principles of urban forest management,this essay puts forward the measures to improve the ecological service function of urban forest. |
