基于力学平衡模型的生态系统服务协同与权衡关系研究--以长江中游城市群为例  

Study on trade-offs and synergies of ecosystem services based on mechanical equilibrium model:A case of the Middle Reaches of the Yangtze River Urban Agglomerations

作　　者：梁玉琦 危小建 江平[4] 蔡进 谢名睿 LIANG Yu-qi;WEI Xiao-jian;JIANG Ping;CAI Jin;XIE Ming-rui(Key Laboratory of Mine Environmental Monitoring and Improving around Poyang Lake of Ministry of Natural Resources,East China University of Technology,Nanchang 330013,China;School of Surveying and Geoinformation Engineering,East China University of Technology,Nanchang 330013,China;Jiangxi Province Engineering Research Center of Surveying,Mapping and Geographic Information,Nanchang 330025,China;School of Resource and Environmental Sciences,Wuhan University,Wuhan 430079,China)

机构地区：[1]东华理工大学,自然资源部环鄱阳湖区域矿山环境监测与治理重点实验室,江西南昌330013 [2]东华理工大学测绘与空间信息工程学院,江西南昌330013 [3]江西省测绘地理信息工程技术研究中心,江西南昌330025 [4]武汉大学资源与环境科学学院,湖北武汉430079

出　　处：《中国环境科学》2023年第11期5974-5986,共13页China Environmental Science

基　　金：国家自然科学基金资助项目(52168010)。

摘　　要：在运用InVEST模型估算2000~2020年长江中游城市群6种生态系统服务的基础上,通过主成分分析法选出3个作用力构建力学平衡模型,根据合力的大小和偏离程度来评判研究区生态系统服务时空演变及协同与权衡关系特征.结果表明:研究期间6种生态系统服务时空分异特征明显,呈现出产水量、土壤保持量和净初级生产力增加,而粮食生产、碳储量和生境质量减少的趋势;根据主成分分析的结果,将3个主成分分别重命名为调节支持服务、粮食供给服务、产水供给服务.研究期间生态系统服务协调度F合的均值为5.21,总体上处于基本协调状态,协同性有所提升且结构趋于合理,同时协调度分布的区域差异明显;协调度的偏离角θ分布在Ⅰ、Ⅱ、Ⅵ象限,产水供给服务主导区(Ⅰ、Ⅵ)多于调节支持服务主导区(Ⅱ).从协调性的流动性来看,虽存在跨越式的发展,但其水平仍有待提高.各县区应结合区域自然条件、资源禀赋和社会经济状态,优化生态系统服务之间的关系.研究结果可为研究区生态建设和土地合理利用提供参考依据和决策辅助.Based on the use of the InVEST model to estimate six ecosystem services in the middle reaches of the Yangtze River urban agglomeration from 2000 to 2020,a mechanical equilibrium model was constructed by selecting three forces through Principal Component Analysis(PCA).The spatiotemporal evolution of ecosystem services and the characteristics of trade-offs and synergies within the study area were assessed based on the magnitude and deviation of the resultant forces.The conclusions can be summarized as follows:the spatial and temporal characteristics of the six ecosystem services during the study period were obvious,demonstrating the trend of increasing water yield,soil retention and net primary production,while decreasing grain production,carbon sequestration and habitat quality.On the basis of the findings of PCA,the three principal components were renamed as regulation support service,food supply service and water production supply service.The average of coordination variable Ftotal was 5.21,indicating a generally basic coordination state.The synergies among ecosystem services improved and the overall structure tended to be more reasonable.Meanwhile,significant regional differences in coordination degree distribution were observed.Coordination skewnessθwas mainly distributed in quadrants I,II and VI,with a greater number of dominant areas for water production supply service(I and VI)compared to regulation support service(II).Regarding coordinated mobility,although there was some leapfrog development,its level still needs to be enhanced.All counties and districts should optimize the relationship between ecosystem services depending on regional natural conditions,resource endowments and socio-economic status.The research results can provide references and decision-making assistance for ecological construction and rational land utilization in the research area.

关 键 词：生态系统服务 协同与权衡 主成分分析法 力学平衡模型 长江中游城市群 

分 类 号：X171[环境科学与工程—环境科学]