摘要
以北京市建成区城市园林绿地生态效益量化数据为基础,笔者采用生态效益经济评价中常用的方法,对园林绿地的生态价值进行评价。经初步估算,北京市建成区城市园林绿地一年创造的生态价值达34 902亿元,其中固碳释氧的价值为26 21亿元,净化空气价值7 209亿元,蒸腾吸热的价值1 169亿元,涵养水源价值0 314亿元。
The economic values of urban greenspace ecological benefits in Beijing were analysised with usual methods of economic evaluation on the base of quantifing greenspace ecological benefits . The results showed the total value of Beijng urban greenspace in ecological benefits arrived 34.902×10~8 yuan in one year,which included 26.21×10~8 yuan of carbon fixation and oxygen production,7.209×10~8 yuan of air purification,1.169×10~8 yuan of heat absorption by transpiration in summer,0.314×10~8 yuan of conservation of water source.
出处
《北京农学院学报》
2004年第4期25-28,共4页
Journal of Beijing University of Agriculture
基金
北京市教委资助项目
关键词
北京
城市
园林绿地
生态效益
经济评价
greenspace
ecological benefits
economic valuation
Beijing city
