摘要
论文利用替代成本法、机会成本法和影子工程法等经济学方法,对三江源区生态系统提供的间接使用价值进行了评估。研究结果表明:2008年三江源区生态系统的间接使用价值共计1.74×1011元,其中水源涵养价值为1.07×1011元,占61.38%,土壤保持价值为4.60×1010元,占26.50%,气候调节价值为2.01×1010元,占11.56%,空气质量调节价值为9.56×108元,占0.55%。该结果突出反映了三江源区作为水源发源地在水量平衡、调节区域水分循环和改善水文状况等方面做出的贡献。
The Three-River Headwaters Region （TRHR） of China is within the hinterland of the Tibetan Plateau. As the source of the Yangtze, Yellow （Huanghe） and Lancang （Mekong） rivers, the TRHR is of key importance to the ecological security of China and Southeast Asia. This paper quantified the indirect value of ecosystem services in the TRHR by using the replacement cost approach, opportunity cost approach and shadow project approach. The results showed that the indirect value of ecosystem services was some 1.74 × 10^11 yuan in 2008, which included water conservation of 1.07 × 10^11 yuan accounting for 61.38% , soil conservation of 4. 60 × 10^10 yuan accounting for 26. 50% , carbon sequestration of 2. 01× 10^10 yuan accounting for 11.56% , and air quality regulation of 9.56 × 10^8 yuan accounting for 0.55%. The results highlighted the role of the TRHR as the important birthplace of water sources and its outstanding contribution to water balance, water cycle regulation and regional hydrology improvement. Besides, the results offered good information to policy makers on regional sustainable management and payment for ecosystem service policies.
出处
《自然资源学报》
CSSCI
CSCD
北大核心
2013年第1期38-50,共13页
Journal of Natural Resources
基金
国家科技支撑计划课题(2009BAC61B05)
关键词
生态系统服务
间接使用价值
三江源区
ecosystem services
indirect value
the Three-River Headwaters Region
