杭州不同城市生境杂草群落分布格局及其成因  

Distribution and causes of ruderal communities in different urban habitats of Hangzhou

作　　者：张明丽 崔易翀[1,3] 达良俊 ZHANG Mingli;CUI Yichong;DA Liangjun(School of Ecological and Environmental Sciences,East China Normal University,Shanghai 200241,China;Hangzhou Vocational&Technical College,Hangzhou 310018,China;Shanghai Investigation,Design&Research Institute Co.Ltd.,Shanghai 200335,China;Shanghai Key Laboratory for Urban Ecoligical Processes and Eco-Restoration,East China Normal University,Shanghai 200241,China;Institute of Eco-Chongming,Shanghai 202162,China;Technology Innovation Center for Land Spatial Eco-restoration in Metropolitan Area,Ministry of Natural Resources,Shanghai 202162,China)

机构地区：[1]华东师范大学生态与环境科学学院,上海200241 [2]杭州职业技术学院,杭州310018 [3]上海勘测设计研究院有限公司,上海200335 [4]华东师范大学上海市城市化生态过程与生态恢复重点实验室,上海200241 [5]崇明生态研究院,上海202162 [6]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202162

出　　处：《华东师范大学学报（自然科学版）》2021年第2期120-131,共12页Journal of East China Normal University(Natural Science)

基　　金：国家自然科学基金(31770468);科技部科技基础性工作专项(2015FY210200-4);上海市城市化生态过程与生态恢复重点实验室项目。

摘　　要：在杭州城市化进程下,调查了8种城市生境类型中杂草群落的种类组成与结构.通过测定光照强度、土壤pH值、土壤电导率、土壤紧实度、土壤总氮、土壤总磷、土壤有机质及干扰类型等生境因子,分析了杂草群落物种组成与生境因子的关系.结果表明:调查的1665个杂草样方中,森林空隙和草坪是最为常见的生境类型,涵盖的群落类型数量分别占总数的20.1%和16.3%;除树池外的7种生境,其群落优势种均以矮生长型的一年生杂草为主;在8种生境中均有分布的杂草物种共有30种;不同生境的环境因子存在差异,森林空隙的光照强度最小,灌草丛空隙的土壤电导率值最高,土壤型废弃地的光照强度和土壤紧实度均最高.With the ongoing urbanization process in Hangzhou,we investigated the species composition and structure of ruderal communities across eight urban habitat types.Habitat factors such as light intensity,soil pH,soil electrical conductivity,soil compaction,soil total nitrogen,soil total phosphorus,soil organic matter,and interference types were measured;we subsequently analyzed the relationship between species composition and habitat factors of the ruderal communities.The results indicated that forest gap and lawn were the most common habitat types,and these community types covered 20.1%and 16.3%,respectively,of the total 1665 sampling plots surveyed.In all seven habitats except tree pool,moreover,dwarf-growth annual ruderals were the dominant species within the community.There were 30 ruderal species distributed across eight habitats.Environmental factors varied across the different habitats.The light intensity was the lowest in the forest gap,the soil conductivity value was the highest in the shrub-grassland gap,and the light intensity and soil compactness were the highest in soil abandoned land.

关 键 词：杂草群落 群落多样性 生境因子 城市生境 杭州 

分 类 号：Q948[生物学—植物学]