影响合肥市河流水质的生境多样性关键因素研究  

Research on Key Factors of Habitat Diversity Affecting Water Quality of Urban Streams in Hefei

作　　者：潘晶 葛俊雯 汪洁琼 PAN Jing;GE Junwen;WANG Jieqiong(Shanghai FISH Design Consulting Co.,Ltd.,Shanghai,China,200031;Eco-SMART LAB attached to Key Laboratory of Ecology and Energy-saving Study of Dense Habitat,Shanghai,China,200092;College of Architecture and Urban Planning,Tongji University,Shanghai,China,200092;Ministry of Education,Technology Innovation Center for Land Space Eco-restoration in Metropolitan Area(MNR),Shanghai,China,200003)

机构地区：[1]上海翡世景观设计咨询有限公司,上海200031 [2]高密度人居环境生态与节能教育部重点实验室水绿生态智能分实验中心,上海200092 [3]同济大学建筑与城市规划学院,上海200092 [4]自然资源部大都市区国土空间生态修复工程技术创新中心,上海200003

出　　处：《园林》2024年第6期12-22,共11页Landscape Architecture Academic Journal

基　　金：国家自然科学基金面上项目“基于多重价值协同的城市绿地空间格局优化机制:以上海大都市圈为例”(编号:52178053);上海市科委项目“基于生物多样性的城市困难立地高质量园林绿化智能技术及示范”(编号:22dz1202200);同济建筑设计集团2023年自主课题(揭榜挂帅类)“基于生物多样性的高密度城区高质量生境智能营造技术”(编号:2023J-JB02)。

摘　　要：针对当下城市河流修复缺乏物理空间生境研究的知识缺口,面向生态文明建设与国土空间生态修复的国家战略需求,从提升生态系统服务综合效能的角度出发,通过学科交叉,定量揭示影响城市河流水质的生境多样性关键因素。以合肥市南淝河、塘西河作为实证研究案例,通过水质实验与天空地生境信息采集获取样本数据,依据水质评价与URS生境多样性评价体系的研究方法,揭示水质与生境多样性之间的相关性,发现了同时对水质与生境多样性产生影响的关键因素。产生正向显著影响的指标分别为河岸自然化形态比例、河道生境类型数量、滨水带种植宽度、河岸乔木连续性指数、水生植被平均覆盖度、主导水生植物类型、水生植物长势、河岸植被特征指数;产生负向显著影响的指标为河岸带植被相关特征、河岸表层植被平均高度、固定河床材料比例、护岸存在比例、河岸材质指数、主导护岸材质类型、护岸材质指数、入河排污口数量。这些关键因素可作为城市河流生态修复重点关注的生境指标,为基于生境多样性恢复的城市河流生态修复提供一定的理论依据与技术支撑。Aiming at the current knowledge gap of urban river restoration that lacks physical space habitat research,facing the strategic needs of the national ecological civilization construction and ecological restoration of national land space,and from the per-spective of enhancing the comprehensive effectiveness of ecosystem services,the study quantitatively reveals the key factors of habitat diversity that affect the water quality of urban rivers through the intersection of disciplines.Taking the Nanfei River and Tangxi River in Hefei as empirical study cases,the study obtained water quality data and habitat data,and based on the water quality evaluation data and the habitat diversity evaluation system of URS,revealed the correlation between water quality and habitat diversity through SPSS principal component analysis and multiple linear regression.The study found the key factors simultaneously positively and significantly influenced water quality and habitat diversity.It was found that the indicators with positive and significant effects were the proportion of riparian naturalized forms,the number of riverine habitat types,the width of riparian zone planting,the riparian tree continuity index,the average coverage of aquatic vegetation,the dominant aquatic plant types,the amount of aquatic plant growth,and the riparian vegetation characteristic index;In contrast,the indicators with adverse and significant effects were the vegetation-related characteristics of riparian zones,the number of habitat types in riparian zones,the width of riparian zone planting,the width of riparian zone planting,the tree continuity index,and the veg-etation-related characteristics of riparian zone planting,riparian zone tree continuity index,average aquatic vegetation cover,dominant aquatic plant types,aquatic plant growth,and riparian vegetation characterization index.

关 键 词：风景园林 城市河流 生态修复 水质 生境多样性 合肥市 

分 类 号：TU986[建筑科学—城市规划与设计]