河段尺度的上海苏州河河岸带综合评价  

Reach-scale riparian comprehensive assessment for Suzhou Creek,Shanghai

作　　者：汪冬冬[1,2] 杨凯[1] 车越[1,2] 吕永鹏[1] 

机构地区：[1]华东师范大学环境科学系上海市城市化生态过程与生态恢复重点实验室,上海200062 [2]华东师范大学天童森林生态系统国家野外站,上海200062

出　　处：《生态学报》2010年第13期3501-3510,共10页Acta Ecologica Sinica

基　　金：国家自然科学基金资助项目(40871016);上海市科研资助项目(08JC1417602;08JC1408800)

摘　　要：基于河岸带结构初步构建河段尺度的苏州河河岸带综合评价指标体系,选取其干流43个河段为评价单元,结合遥感影像解译与实地调研,构建指标数据库,度量河岸带综合状况指数(Riparian Comprehensive Situation Index,RCSI);基于ANOVA分析方法阐释RCSI对河段区位及用地类型的响应,并提出河岸带规划设计及改进策略。结果表明:RCSI分布于3.79-25.03范围内,69.8%河段处于较差和非常差级别;②高于85%河段的滨水带及护岸带状况处于较差和非常差级别,滨水带宽度和护岸类型是其主要影响因素;大于50%河段的近岸带状况处于较差和非常差级别,不透水面积率和设施丰富度是其关键限制因子;③人类活动强度、城市化进程等原因导致RCSI以及多数指标在不同区位和不同用地类型中存在显著差异,而滨水带宽度、护岸坡度、侵蚀程度、α多样性指数和纵向连通性等方面无显著性差异。Natural characteristics of riparian zones in China are under destruction and degradation because of urbanization,and this brings a series of environmental problems.Riparian comprehensive assessment is the significant component of riparian zone remediation planning and sustainable management.Reach scale as the smallest scale of riparian comprehensive assessment study has the uniform functional characteristics and homogeneous advantage.Therefore,reach-scale riparian comprehensive assessment is more maneuverable and unified in comprehensive assessment and comparative analysis.The purpose of this paper is to evaluate the current situation of riparian zone and make a comparative analysis among multi-factors in different dimensions.Thus,a method based on riparian comprehensive situation index（RCSI）was proposed for the reach-scale riparian comprehensive assessment.The proposed method included 5 steps.Firstly,listing indexes relevant to riparian zone from the correlated studies;moreover,developing the reach-scale riparian comprehensive assessment index system,and the system,including 4 first-grade indexes and 23 second-grade indexes,is based on horizontal structure of riparian zone（including waterfront zone,revetment zone,buffer zone and nearshore zone）and principles of index selection;furthermore,establishing standards for assessing sub-factors according to field characteristics and experts preferences;fourthly,weighting the indexes and ranking the comprehensive situation of riparian zone to 5 grades（best,better,common,worse and worst）by RCSI;finally,putting forward strategies for adaptive riparian planning and management.A case study implementing the method was performed on riparian zones of Suzhou Creek in Shanghai,whose natural characteristics are under signi？cant destruction and degradation due to rapid urbanization.43 reaches were selected as the assessment units on the main stream of Suzhou Creek.The results show that：（i）The riparian comprehensive situation of Suzhou Creek is in the ＂poor＂

关 键 词：河岸带 综合评价 ANOVA分析 苏州河 

分 类 号：X826[环境科学与工程—环境工程]