摘要
基于10 m分辨率的土地覆被数据,采用服务价值当量法,定量评价2017年安徽全省和红线内生态系统服务价值,并按红线内非生态用地的修复方案构建了5种未来土地覆被情景,分析全省和红线内服务价值变化对5种情景的响应。结果表明,2017年安徽省生态系统服务总价值达20838.0亿元,红线内的服务价值总额7346.4亿元,占比35.3%。通过划定红线保育服务价值的生态效益比达2.33。红线内水文调节服务价值突出,占红线总价值量的55.3%。随着红线内修复强度提升,红线内和全省的服务价值量以及红线内服务价值占全省的比重均呈现梯度增加,新增服务价值抵消生态工程花费所需时间逐渐缩短,可见修复强度的提升加速服务效益的累积,生态经济效益也更显著。
Based on the land cover data with a resolution of 10 m,the ecosystem services value of Anhui Province and the Eco-redline region in 2017 were quantitatively evaluated by using the evaluation method for ecosystem services value based on per unit area.According to the restoration scheme of non ecological land in the Eco-redline region,five future land cover scenarios were constructed.The response of services value change in the whole province and the Eco-redline region to five different scenarios was analyzed.The results show that in 2017,the total value of ecosystem services in Anhui Province reached 2083.80 billion yuan while the value inside the Eco-redline region was 734.64 billion yuan accounting for 35.3%.The ecological benefit ratio of conservation services inside the Eco-redline region reached 2.33.The value of hydrological regulation service inside the Eco-redline region was the highest,accounting for 55.3%of the total value of the Eco-redline region.With the improvement of the restoration intensity inside the Eco-redline region,the ecosystem services value of Anhui Province and Eco-redline region showed a gradient increase as well as the ratio of value inside the Eco-redline region to value of Anhui Province.The time required for the value of new services to offset the cost of ecological engineering was gradually shortening.It can be seen that the improvement of the restoration intensity accelerates the accumulation of services benefits,and the ecological economic benefits were more significant.
作者
潘丽丽
吴楠
PAN Li-li;WU Nan(Hefei Haizheng Environmental Monitoring Co.,Ltd.,Hefei,Anhui 230088;Anhui Academy of Environmental Science,Hefei,Anhui 230071)
出处
《安徽农业科学》
CAS
2020年第12期52-59,共8页
Journal of Anhui Agricultural Sciences
基金
生态环境部2019年预算项目“省域生态保护红线生态效益分析与评价”
安徽省省级环境保护科研项目(2016-11)。
