江西农业大学学报2025，Vol.47Issue(2)：557-568,12.DOI:10.3724/aauj.2025048
鄱阳湖城市群生态系统服务空间网络结构特征及其优化策略
Characteristics and optimization strategies of ecosystem service spatial network in Poyang Lake urban agglomeration
摘要
Abstract
[Objective]Taking Poyang lake urban agglomeration as an example,this study explores the characteristics of the spatial network structure of ecosystem services of urban agglomeration and their optimisation strategies,thus providing references for ecological environmental protection,territorial space governance and high-quality development of urban agglomeration.[Method]The InVEST model was used to measure the supply of ecosystem services in the study area from 2000 to 2020 and analyzed its spatial and temporal evolution,the spatial autocorrelation and modified gravity models were used to explore the spatial autocorrelation and spatial network structure of the integrated ecosystem services,and targeted optimization strategies were proposed.[Result](1)From 2000 to 2020,water yield and soil conservation increased by 5.665%and 16.240%,respectively,while carbon storage and habitat quality decreased by 1.842%and 4.509%,and the integrated services mainly showed a spatial pattern of'high in the surroundings,low in the middle and along the river';(2)Ecosystem services showed significant spatial proximity effects and spatial spillover phenomena,with inter-area linkages tending to decline,inter-area spillover effects appearing to weaken,the contiguity of hotspots and coldspots was obvious,and there was significant fluctuations and expansion in some of the coldspot areas;(3)The structure of the spatial network of ecosystem services had the complex characteristic of multiple interconnections,showing the spatial distribution pattern of'one big core and three small cores'as a whole,and the tendency of the complex network of multiple interconnections gradually evolving into a simple and independent network in time;(4)In terms of the optimization strategy,it is recommended to cultivate and maintain core ecological source areas,reasonably optimize the"three living spaces"pattern,accelerate the establishment of cross regional ecological protection compensation mechanisms,and coordinate the coordinated development between various systems.[Conclusion]The network connectivity of ecosystem services in the Poyang Lake urban agglomeration is gradually weakening.Promoting the multi connectivity of cities through reasonable means can help establish an ecological compensation mechanism for the urban agglomeration.关键词
生态系统服务/空间网络结构特征/InVEST模型/优化策略/鄱阳湖城市群Key words
ecosystem services/InVEST model/optimization strategy/Poyang Lake urban agglomeration/spatial network characteristics分类
资源环境引用本文复制引用
罗松开,王建辉,罗志军,郭东汕,童锦文,聂欣然..鄱阳湖城市群生态系统服务空间网络结构特征及其优化策略[J].江西农业大学学报,2025,47(2):557-568,12.基金项目
国家自然科学基金项目(41961042)和自然资源部大湖流域国土空间生态保护修复工程技术创新中心开放课题基金(JXCXZX2024003)Project supported by the National Natural Science Foundation of China(41961042)and the Open Project Fund of the Technology Innovation Center for Land Spatial Ecological Protection and Restoration in Great Lakes Basin,MNR(JXCXZX2024003) （41961042）
