摘要
针对生态系统服务价值动态评估模型的优化问题,该文利用层次分析法对水域生态系统的当量因子进行分级评估。以植被净初级生产力(NPP)、降水量和土壤保持时空调节因子修正当量因子表,并引入生态支付意愿系数构建生态系统服务价值动态评估模型,定量分析了1990—2020年长株潭城市群生态系统服务价值动态变化特征。结果显示,长株潭城市群生态系统服务价值呈现出明显的增加趋势;从空间上看,各县级行政区生态系统服务价值均有所增加,变化量大体上呈现出由中心区向四周增加的趋势。1990—2020年长株潭城市群生态支付意愿的增加和水环境质量的改善对生态系统服务价值产生了较大的影响。
In view of the optimization of the dynamic evaluation model of ecosystem service value,the analytic hierarchy process(AHP)was used to classify and evaluate the equivalent factors of water ecosystem in this paper.The equivalent factor table was modified with the temporal and spatial adjustment factors of the net primary productivity(NPP)of vegetation,precipitation and soil retention,and the ecological willingness to pay coefficient was introduced to construct the dynamic evaluation model of ecosystem service value.The dynamic change characteristics of ecosystem service value of Changsha-Zhuzhou-Xiangtan urban agglomeration from 1990 to 2020 were quantitatively analyzed.The results showed that the ecosystem service value of Changsha-Zhuzhou-Xiangtan urban agglomeration showed an obvious increasing trend;from the spatial point of view,the value of ecosystem services in county-level administrative regions has increased,and the change showed a trend of increasing from the central area to the surrounding area.The increase of ecological willingness to pay and the improvement of water environment quality in Changsha-Zhuzhou-Xiangtan urban agglomeration from 1990 to 2020 had a great impact on the value of ecosystem services.
作者
赵海溶
莫宏伟
ZHAO Hairong;MO Hongwei(School of Earth Sciences and Spatial Information Engineering,Hunan University of Science and Technology,Xiangtan,Hunan 411201,China)
出处
《测绘科学》
CSCD
北大核心
2022年第12期206-215,共10页
Science of Surveying and Mapping
基金
湖南省自然科学基金项目(2018JJ2115)
关键词
生态系统服务价值
当量因子法
动态评估模型
长株潭城市群
ecosystem service value
equivalent factor method
dynamic evaluation model
Changsha-Zhuzhou-Xiangtan urban agglomeration
作者简介
赵海溶(1998—),女,云南弥勒人,硕士研究生,主要研究方向为植被碳汇与生态价值评估。E-mail:zhaohr2028@163.com;通信作者:莫宏伟,副教授,E-mail:1100028@hnust.edu.cn
