水生态学杂志2024，Vol.45Issue(3)：52-59,8.DOI:10.15928/j.1674-3075.202211040442
基于土地利用结构的河流岸带生态系统服务簇识别
Identification and Evaluation of Ecosystem Service Bundles in Riparian Zones Based on Land Use
摘要
Abstract
Effective functioning of ecosystem services in riparian zones is an important safeguard for the stability and health of river ecosystems.In this study,Zhuze River,a typical county-level river of Liyang City in the Taihu Lake basin was selected for a case study,and we explored the spatial distribution charac-teristics of land use and ecosystem service values in the river's riparian zone.Interpreted ArcGIS remote sensing images of the study area on April 20,2020,combined with a field investigation and information gathered about the site were used to classify land use.Nine land use types were identified:rivers,ponds,paddy field,dry field,broad-leaved forest land,shrub land,floodplain meadow,construction land,and bare land.Six ecosystem functions provided by the riparian zone were identified:water supply,environ-ment purification,water regulation,soil formation,nutrient cycling,and biodiversity maintenance.The re-vised equivalent factor method was used to estimate the spatial extent of each ecological service.Hierar-chical cluster analysis of ecosystem service values was carried out to identify the spatial distribution of ecosystem service bundles.Our aim was to improve the efficiency of evaluating ecosystem services and classifying ecosystem service bundles in the riparian zones of medium and small sized river networks,and to support conservation and restoration of river ecosystems.Results show:(1)The service value per unit area of the six ecosystem functions in the riparian zone of Zhuze River displayed significant spatial hetero-geneity and aggregation.High-value areas were mainly concentrated at the confluence of tributaries with the Zhuze River,while the value of ecological services in urban areas was low or even negative.(2)The riparian zone of Zhuze River included five ecosystem service bundles:water conservation,green diversi-ty,ecology-based commerce,fragile ecology,and water deprivation and pollution.(3)The service charac-teristics and spatial layouts of these ecosystem service bundles:were obviously differentiated,coordinated with the actual land use structure of the riparian zone and revealed the generally weak state of ecosystem services in the riparian zone along Zhuze River.Our results provide a theoretical reference to support functional zoning,ecological protection and a restoration plan for the riparian zone of Zhuze River and other similar rivers.关键词
河岸带/土地利用结构/生态系统服务簇/层次聚类分析Key words
riparian zone/land utilization structure/ecosystem service bundles/hierarchical cluster analysis分类
资源环境引用本文复制引用
徐慧,高雨慧,周强,闫怀春,蔡晨茵,刘志杰..基于土地利用结构的河流岸带生态系统服务簇识别[J].水生态学杂志,2024,45(3):52-59,8.基金项目
中国-东盟国家防洪抗旱应急管理合作项目. （）
