摘要
生态系统服务价值评估是生态环境保护、生态功能区划,以及经济社会可持续发展的重要科学依据。在Costanza和谢高地等研究成果的基础上,建立了符合研究区生态系统单位面积服务价值表,以土地利用变更数据为基础,对研究区2010年、2014年和2018年生态系统服务价值进行评估,并且分析其时序变化和空间分异特征。结果表明:研究区2010~2018年生态系统服务价值总体呈现先增加后减少的趋势,动态度为-0.23%,林地提供最大比例的生态系统服务价值;从服务功能类型看,水文调节占比最大,同时水文调节、废物处理和提供美学景观这三项服务价值逐步递减,其他单项服务价值呈现先增后减趋势。通过引入经济学弹性系数概念,计算研究区生态系统服务价值敏感性指数,表明研究区总的生态系统服务价值是缺乏弹性的,且相对于价值系数来说是较为稳定的。
The evaluation of ecosystem service value is an important scientific basis for ecological environment protection,ecological function zoning and sustainable development of economy and society.Based on the basis of the research results such as Costanza and Xie Highland,the service value table of ecosystem per unit area in the research area was established,evaluated the ecosystem service value of the research area in 2010,2014 and 2018,and analyzed the temporal changes and spatial differentiation characteristics.The results showed that the value of ecosystem services increased first and then decreased in the study area from 2010 to 2018,and the dynamic attitude was-0.23%,with forest land providing the largest proportion of ecosystem services value.From the perspective of service function types,hydrological regulation accounted for the largest proportion,while the three service values of hydrological regulation,waste treatment and aesthetic landscape supply gradually decreased,while the value of other individual services increased first and then decreased.Finally,the concept of economic elasticity coefficient is introduced to calculate the value sensitivity index of ecosystem services in the study area.It shows that the total value of ecosystem services in the study area is inelastic and relatively stable compared with the value coefficient.
作者
陈腾
Chen Teng(Fujian Institute of Geological Survey,Fuzhou,350013)
出处
《福建地质》
2021年第4期322-329,共8页
Geology of Fujian
基金
“宁德市国土空间总体规划”项目资助。
