基于生态系统服务供需关系的安徽省空间分异研究

Spatial Differentiation of Anhui Province Based on the Relationship Between Supply and Demand of Ecosystem Services

生态系统服务供需存在的空间异质性可以造成地区发展的不平衡。以安徽省各区县为研究单元,基于土地利用和夜间灯光数据,揭示安徽省生态系统服务供需关系空间分异特征,并划分各区县的管控类型,提出各类型的国土空间发展策略。结果表明:(1)安徽省各地区土地利用类型存在明显差异,生态系统服务价值呈南高北低的状态;(2)安徽省各区县生态系统服务需求差异明显,沿江、皖中和皖北区域生态系统服务需求较高,而皖西和皖南区域需求较低;(3)安徽省生态系统服务供需关系区域性差异明显;(4)基于生态系统服务供需关系分析,安徽省各区县可划分为生态协调型、生态控制型、生态重建型和生态保育型4种管控类型。研究结果可为安徽省生态用地配置和区域土地资源规划提供科学依据。

The spatial heterogeneity in the supply and demand of ecosystem services can lead to the unequilibrium in regional development.Based on the data of land use and nighttime light,taking the districts and counties in Anhui Province as the research units,the spatial heterogeneity characteristics of supply and demand relationship of ecosystem services in Anhui Province were revealed,and the types of management and control of each district and county were divided,and various types of national spatial development strategies were proposed.The results show that:(1)There are significant differences in land use types in various regions of Anhui Province,and the value of ecosystem service is in a state of high in the south and low in the north.(2)There is a significant difference in demand for ecosystem services among the districts and counties in Anhui Province.The demand for ecosystem services is high along the Yangtze River,middle Anhui and northern Anhui,while the demand in the western and southern regions of Anhui Province is relatively low.(3)The regional differences in supply and demand relationship of ecosystem services in Anhui Province are significant.(4)Based on the analysis of ecosystem service supply and demand,various districts and counties in Anhui Province are divided into four types of management and control:ecological coordination type,ecological control type,ecological rebuilding type,and ecological conservation type.The research results can provide a scientific basis for the allocation of ecological land and regional land resources planning in Anhui Province in the future.