水土保持通报2012，Vol.32Issue(3)：240-244,5.
黄河兰州段湿地植物多样性研究
An Analyses of Plant Diversities for Yellow River Wetland in Lanzhou City
摘要
Abstract
The Yellow River wetland plays an important role in the ecosystem of Lanzhou City.The plant diversities of Lanzhou urban wetland was studied by the field investigation of three habitats in the Yellow River wetland using belt transects and quadrats.Results show that：（1） Herb,particularly Salix babvlonica that belongs to Salicaceae,is the dominant species in various wetland plant communities,while only one species of one family shrub is found.Wetland plant species in transition zone nearly cover all the species in other habitat systems.（2） The importance values for Leymus secalinus,Echinochloa crusgalli and Chloris virgata are 16.336,14.112 and 11.723,respectively.Phragmites communis has been strengthened in transition zone and its importance value in nearly natural wetland is 13.153.Common companions,such as Oenanthe clecumbens,Typha angustifolia and Beckmannia syzigachne,also have certain positions in wet environment.（3） Simpson and Shannon—Wiener indexes of wetlands′ habitat follow the order of transition zone〉 nearly bare wetlands〉 nearly natural wetland,and however,evenness index does not have such a trend.β diversity for nearly bare wetland and transition zone is lower than that of nearly natural wetland and transition zone,which is consistent with the sequence of species dissimilarity among different habitats.关键词
黄河湿地/兰州城市湿地/湿地生境/植物多样性Key words
Yellow River wetland/Lanzhou urban wetland/wetland habitat/plant diversity分类
生物科学引用本文复制引用
张起鹏,王倩,张丽,张春花..黄河兰州段湿地植物多样性研究[J].水土保持通报,2012,32(3):240-244,5.基金项目
甘肃民族师范学院校长基金项目“基于ArcGIS的虚拟校园设计与实现” （）
