摘要
【目的】明晰生态系统服务供需格局和匹配关系,为生态系统服务供需平衡提供科学依据,为区域生态文明建设和社会经济可持续发展提供助力。【方法】以江苏省徐州市为研究区域,采用InVEST模型、RUSLE模型、当量因子法等分析其2019年的食物供给、气候调节、水土保持、空气净化和文化娱乐五项生态系统服务的供需格局及匹配程度。【结果】食物供给、气候调节、水土保持、空气净化和文化娱乐服务供给量分别为5.47×10^(6) t、1.11×10^(8) t、4.77×10^(6) t、4.21×10^(4)万元和1.21×10^(5)万元,需求量分别为2.93×10^(6) t、1.53×10^(7) t、5.51×10^(6) t、1.91×10^(4)万元和1.21×10^(5)万元;食物供给、气候调节、水土保持和空气净化服务主导空间匹配类型为高-高型,文化娱乐服务主导空间匹配类型为低-低型。【结论】徐州市生态系统服务供给和需求在数量和空间上分异较大,水土保持服务和文化娱乐服务难以满足区域所需;不同生态系统服务供需匹配情况存在明显空间差异;生态系统服务供需匹配均存在空间集聚性,不同生态系统服务间存在显著的空间异质性。
【Objective】This article analyzed the spatial distribution characteristics and matching status of ecosystem service supply and demand,which can contribute to promoting the balance between them and developing regional ecological civilization construction.【Method】Taking Xuzhou located in Jiangsu Province as an example,this paper evaluated the supply and demand of five ecosystem services including food supply,climate regulation,soil conservation,air purification and cultural entertainment in 2019,based on ArcGIS method,InVEST model,RUSLE model and equivalent factor method.【Result】The total supply of food supply,climate regulation,soil conservation,air purification and cultural entertainment was 5.47×10^(6) t、1.11×10^(8) t、4.77×10^(6) t、4.21×10^(8) Yuan and 1.21×10^(9) Yuan,respectively;and the demand was 2.93×10^(6) t、1.53×10^(7) t、5.51×10^(6) t、1.91×10^(8) Yuan and 1.21×109 Yuan,respectively;The dominant spatial matching type of food supply,climate regulation,soil conservation and air purification services was high-high type,while the dominant spatial matching type of cultural entertainment services was low-low type.【Conclusion】The supply and demand of ecosystem services in Xuzhou city had obvious quantitative difference and spatial heterogeneity,and the demands of soil conservation and cultural entertainment outstrips the supply;There were different spatial distribution characteristics between different kinds of ecosystem services;There were obvious spatial agglomeration in supply-demand matching.
作者
李传昌
胡嫚莉
雍新琴
LI Chuanchang;HU Manli;YONG Xinqin(School of Geography,Geomatics and Planning,Jiangsu Normal University,Xuzhou 221116,China)
出处
《湖南生态科学学报》
2022年第4期19-28,共10页
Journal of Hunan Ecological Science
基金
国家自然科学基金(42171248)
江苏师范大学研究生科研创新项目(2021XKT0102)。
关键词
生态系统服务
生态系统服务供需
供需匹配
ecosystem services
supply-demand of ecosystem services
supply and demand matching
