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Ecological assessment of lakeshore wetland rehabilitation on eastern route of South-to-North Water Transfer Project

查看全文 作　　者：Jian [1]ZHANG;Fei [1,2]MENG;Yifeng [1]LU;Yuming [1]JING;Huayong [3]ZHANG;Bo [1]ZHANG;Chenglu [1]ZHANG 高影响力作者 机构地区：[1]School of Environmental Science&Engineering,Shandong University,Jinan 250100,China;[2]School of Civil Engineering,Shandong Jianzhu University,Jinan 250014,China;[3]Center of Energy and Environmental Research,North China Electric Power University,Beijing 102206,China高影响力机构 出　　处：《Frontiers of Environmental Science & Engineering》索引2008年第2卷第3期,共5页高影响力期刊 基　　金：This work was supported by the Key Technologies Research and Development Program of the Eleventh Five-Year Plan of China(Grant No.2006BAC10B03);the National Natural Science Foundation of China-Japan Science and Technology Agency(NSFCJST)Strategic Joint Research Project(Grant No.50721140017);the National Natural Science Foundation of China(Grant No.50508019). 摘　　要：To evaluate the ecological effects of lakeshore wetland rehabilitation on the eastern route of the Southto-NorthWater Transfer Project,species composition,coverage,height,and biomass of wetland communities at 22 sites of the study area on the shore of Nansi Lake in April and May 2007 were investigated.The wetlands under investigation were divided into platform fields,transition zones,and shallow water zones according to differences in elevations,water levels,and human activities.The species richness index,Shannon-Wiener index,Simpson index,and Pielou Evenness index were adopted to delineate and discuss the ecological effects of lakeshore wetland rehabilitation in 22 quadrates.Results showed that the species richness of the wetland areas after 2 years’rehabilitation amounted to 47 of 24 families,higher than 25 of 20 families in areas without rehabilitation.The biodiversity index and abundance index of rehabilitated areas were also higher than those of platform fields and fish ponds where there was no rehabilitation.In addition,the Shannon-Wiener index,Simpson index,and community evenness index of platform fields in rehabilitated wetland areas were 1.619,0.745,and 0.860,respectively,higher than those of the platform fields before rehabilitating.The results suggested that the constructed lakeshore wetland played an important role in protecting the diversity of species. 关 键 词：wetland rehabilitation Nansi Lake constructed wetland South-to-North Water Transfer Project
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