基于协调系数修正的区域生态系统服务价值测算研究

Amendment of Regional Ecosystem Service Value Based on Coordination Index

在分析生态系统服务价值影响因素的基础上,建立生态系统服务价值修正指标体系,引入区域社会经济生态协调系数,对传统的生态系统服务价值测算模型进行修正。选择广东省龙门县为研究区,传统方法测算的龙门县生态系统服务价值整体趋于平缓,而经协调系数修正后的生态系统服务价值从1997年的33.72亿元降到2006年的29.57亿元,降幅为12.33%。表明社会经济发展的环境代价并不能完全通过传统的生态系统服务价值测算结果体现,基于协调系数修正的测算模型能够较全面地反映区域整体效益对生态系统服务价值的影响。

In this paper, amendment indexes were chosen from the perspective of sustainable development and amenoment index system of ecosystem service value was built by analyzing its influencing factors in the first place, and then the socio-economic and eco-regional coordination coefficient was brought in to amend the traditional ecosystem service valuation model. Using Longmen County of Guangdong Province as study area, the ecosystem service value was measured. The results show that the value of ecosystem services calculated by traditional method is rendering a moderate trend, in the contrast, ecosystem services value based on coordination index in Longmen County has declined 12. 33 percent from 33.72 billion yuan in 1997 to 29. 57 billion yuan in 2006. Conclusion is that the environmental costs of socio-economic development can not be entirely reflect through the traditional ecosystem service valuation method, however, ecosystem services value amended by coordination index could reflect a more comprehensive impact of regional overall efficiency to ecosystem service value.