%0 Journal Article
%T Spatial-temporal Dynamics of Vegetation in the Newly Created Water-level-fluctuation Zone of Three Gorges Reservoir:a Case Study in Baijia Stream, Kaixian County, China
%A WANGQiang
%A LIUHong
%A ZHANGYue-wei
%A XIONGSen
%A YUANXing-zhong
%J 重庆师范大学学报(自然科学版)
%P 163-167
%D 2012
%R 10.11721/cqnuj20120329
%X "AfterimpoundentoftheThreeGorgesReservoir,alargepermanentsampleplotwasplacedinitswater-level-fluctuationzonebesideBaijiaStream,KaixianCounty,China.Vegetationintheplotwasinvestigatedinthesummerof2008,2009and2010.Theresultindicatedthatcommunity’scomponent,biodiversityandabovegroundbiomassshowedobviousspatial-temporaldynamics.Totalspieciesnumberofvascularflorainsidedecreasedyearly,from52speciesin2008to41speciesin2009andto35speciesin2010.Theareabelow156minelevationwasdominatedbyPaspalumpaspaloidesandXanthiumsibiricumin2008.However,PaspalumpaspaloideswasrapidreplacedbyCynodondactyloin2009andX.sibiricumexpandeditsdistributioninupperareaoftheplot.In2010,X.sibiricumdepresseditspopulationinlowerareasoftheplotastheThreeGorgesReservoirstartedtoimpoundhalfmonthearlierinthewinterof2009anddecreasedseedbankforitsgermination.Shannon-WienerIndexincreasedaselevationaccordingtothedataof2009and2010,whichreflectedtheinflu-enceofsubmergedgradient.Abovegroundbiomassofvegetationineachelevationzoneoftheplotindicatedgreatvariation.KeywordsThreeGorgesReservoir;water-level-fluctuationzone;vegetation;spatial-temporaldynamics;biodiversity"
%K ThreeGorgesReservoir
%K water-level-fluctuationzone
%K vegetation
%K spatial-temporaldynamics
%K biodiversity
%U http://cqnuj.cqnu.edu.cn/oa/DArticle.aspx?type=view&id=120329