A conceptual framework for ex ante valuation of ecosystem services of brownfield greening from a systematic perspective  

作　　者：Qicheng Zhong Lang Zhang Yi Zhu Cecil Konijnendijk van den Bosch Jigang Han Guilian Zhang Yuezhong Li 

机构地区：[1]Key Laboratory of National Forestry and Grassland Administration on Ecological Landscaping of Challenging Urban Sites,Shanghai Academy of Landscape Architecture Science and Planning,Shanghai,China [2]Shanghai Engineering Research Center of Landscaping on Challenging Urban Sites,Shanghai,China [3]Department of Forest Resources Management,University of British Columbia,Vancouver,British Columbia,Canada

出　　处：《Ecosystem Health and Sustainability》2020年第1期1-16,I0001,共17页生态系统健康与可持续性（英文）

基　　金：This work was supported by the National Natural Science Foundation of China[31800411];Shanghai Municipal Natural Science Fund[17ZR1427400];Ministry of Science and Technology of the People's Republic of China[2017YFC0505706];Shanghai Committee of Science and Technology Fund[19DZ1203301].

摘　　要：Introduction:Although Brownfield greening(BG)can be a crucial solution to green space deficiency in dense urban areas,the potential benefits of different BG initiatives have rarely been quantitatively pre-evaluated.Here,the concept and main features of BG and its costs and benefits are firstly depicted.Next,a conceptual framework is presented which combines ecosystem service(ESS)valuation,economic cost-benefit analysis,and spatial pattern analysis.The framework is used to perform ex ante valuation of the ESS value of BG in Xuhui District,Shanghai.Outcomes:The scenario comparison results show that it can spatially reflect a closer-to-reality value of ESS at the urban scale instead of a theoretical value at the site scale.The ultimate values of ESS(After economic and landscape adjustments)in the composite scenario is more than 21%higher than those in the full-eco scenario,whereas the initial values of ESS(before the adjustments)in the former was 14%lower than those in the latter.These results suggest that a considerable part of brownfield greening projects need to be implemented in the more populated and economically vibrant areas instead of solely in the ecological construction zone,thereby correspondingly providing more cultural and regulation services and forming a better urban green space network.Conclusion:The framework provides a simple,science-based,and feasible tool for making BG decisions from a systematic perspective in dense urban areas.It can help meet the need for applying ESS knowledge to BG-based green space planning and policy making in the context of urban sustainable development.

关 键 词：Brownfield greening ecosystem servicevalue green space urban regeneration urban sustainable development 

分 类 号：X171[环境科学与工程—环境科学]