都江堰市陆地生态系统服务功能及其生态经济价值研究初报

根据陆地生态系统的特征和服务功能的内涵.采用物质量和价值量相结合的评价方法,以市场价值法、影子工程法、机会成本法等手段定量评估了都江堰市陆地生态系统服务功能的经济价值.评估结果表明:都江堰市陆地生态系统服务功能总价值为173 831.6万元.其中物质生产价值为7 130万元、涵养水源价值为29 252.3万元、保土保肥价值为23398.7万元、同碳释氧价值为60 952.2万元、净化环境价值为53 098.4万元.

A pilot study of service function of terrestrial ecosystem and its eco-economic value-exemplified by Dujiangyan city

According to the characteristic of terrestrial ecosystem and the connotation of its service function,this article applied an evaluation method combined with substance quantity and value quantity by using the market value method,shadow engineering technique and the opportunity cost analysis to quantificationally evaluate the economic value of the service function of the terrestrial ecosystem in Dujiangyan city.It showed that the economic value of the service function of the terrestrial ecosystem in Dujiangyan city was RMB 1 738 316 000,including the productive value of RMB 71 300 000,conservation water source value of RMB 292 523 000,soil and fertilization conservation RMB 233 987 000,carbon fixation oxygen making RMB 609 522 000,environmental depuration value of RMB 530 984 000.