南方滨湖小流域土地利用变化对生态系统服务权衡关系的影响  

Effect of Land Use Change on the Trade-off Relationship of Ecosystem Services in Southern Lakefront Small Watershed

作　　者：黄俊 丁倩 叶英聪 张林 HUANG Jun;DING Qian;YE Ying-cong(Basic Geological Survey Institute,Jiangxi Provincial Geological Survey and Exploration Institute,Nanchang,Jiangxi 330030;Jiangxi Nonferrous Geological Mineral Exploration and Development Institute,Nanchang,Jiangxi 330030;Key Laboratory of Agricultural Resources and Ecology in the Poyang Lake Basin,Ministry of Agriculture and Rural Affairs,Nanchang,Jiangxi 330045)

机构地区：[1]江西省地质调查勘查院基础地质调查所,江西南昌330030 [2]江西有色地质矿产勘查开发院,江西南昌330030 [3]农业农村部鄱阳湖流域农业资源与生态重点实验室,江西南昌330045

出　　处：《安徽农业科学》2025年第1期57-62,90,共7页Journal of Anhui Agricultural Sciences

基　　金：江西省地质局青年科学技术带头人培养计划项目(2022JX-DZKJRC08)。

摘　　要：以鄱阳湖海昏江小流域为研究对象,基于遥感、气候、土壤、DEM和植被数据,对1984、2008和2022年的土地利用变化进行动态分析。利用InVEST和CASA模型量化分析水源涵养、土壤保持、生境质量、碳储存和净初级生产力5种主要生态系统服务及它们之间的时空变化特征,运用相关性分析、权衡协同度等方法,研究区域内生态系统服务之间的权衡和协同作用。结果表明,1984—2022年流域内林地减少15.27 km^(2),建设用地增加17.06 km^(2),但土地利用结构总体相对稳定,呈现出由西向东“林地—耕地—建设用地”的地带性分布模式,1984—2008年土地利用变化整体偏缓慢,2008—2022年土地利用变化较为剧烈。水源涵养和净初级生产力服务对、土壤保持和净初级生产力服务对、生境质量和净初级生产力服务对、碳储量和净初级生产力服务对这4个服务对1984—2022年空间分布上均表现出以权衡关系为主。水源涵养和生境质量服务对、土壤保持和生境质量服务对1984—2008年空间分布上以权衡关系为主,2008—2022年以协同关系为主。从生态系统服务结构来看,耕地展现出“土壤保持—碳储量—净初级生产力”的复合型结构特征,林地呈现出“水源涵养—生境质量”的双层次结构特征。相比之下,其他土地类型主要表现为单一型结构。Taking the Haihun River small watershed of Poyang Lake as the research object,based on remote sensing,climate,soil,DEM and vegetation data,a dynamic analysis of land use changes in the Haihun River small watershed of Poyang Lake in 1984,2008 and 2022 was conducted.The InVEST and CASA models were employed to quantify five major ecosystem services,namely water conservation,soil retention,habitat quality,carbon storage and net primary productivity,and to analyze their spatiotemporal variation characteristics.Correlation analysis and trade-off synergy methods were applied to study the trade-offs and synergies among ecosystem services within the region.The result showed that during 1984-2022,the forest land in the watershed decreased by 15.27 km^(2),while the construction land increased by 17.06 km^(2).However,the overall land use structure was relatively stable,showing a zonal distribution pattern from west to east of“forest land-arable land-construction land”.The land use changes were relatively slow from 1984 to 2008,while the land use change was more severe from 2008 to 2022.The pairs of services,water conservation and net primary productivity,soil retention and net primary productivity,habitat quality and net primary productivity,carbon storage and net primary productivity,all exhibited a predominant trade-off relationship in their spatial distribution from 1984 to 2022.The pairs of services,water conservation and habitat quality,soil retention and habitat quality,showed a trade-off relationship in their spatial distribution from 1984 to 2008,and a synergistic relationship from 2008 to 2022.From the perspective of ecosystem service structure,arable land demonstrated a composite structure characterized by“soil retention-carbon storage-net primary productivity”,forest land showed a two-tier structure of“water conservation-habitat quality”.In contrast,other land types mainly exhibited a single-type structure.

关 键 词：生态系统服务 土地利用变化 权衡与协同 海昏江小流域 

分 类 号：X171[环境科学与工程—环境科学]