桂林漓江濕地植被生態(tài)學分析-(5939)

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時間:2019-02-22

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1、Thecompositionsoffamiliesandgenerafloraaremainlydistributedinpan.tropic.3.TheWetlandvegetationinLijiangRiverwereclassifiedby5wetlandvegetationtypegroupssuchasconiferousforest,broad.1eavedforest,shrub,herbosaandshallowwaterplants,andby10wetlandvegetationtypes,

2、suchasdeciduousconiferousforest,deciduousbroad.1eaveforest,evergreenbroad·leaveforest,deciduousbroad-leaveshrub,sedge,graminoid,forb,submergedplant,leaf-floatedplantandfloatingplant,inwhichcanbecategorizedinto28formations,suchasForm.Pterocaryastenoptera,F(xiàn)orm.

3、Adinarubella,F(xiàn)orm.Eichhorniacrassipesect..4.Wetlandvegetationismainlydistributedintheshallowwaterarea,floodplain,riverislandandriverbankinLijiangRiverwetland.Thesubmergedplantcommunitsaredominantintheaquaticplantsintheshallowwaterarea.Anyofvariouschieflyform.

4、玩llisnel-ianatans.form.Potamogetonwrightii,form.Hydrillaverticillata,form.Egeriadensa,form.Vallisneriaasiatica.Hygrophilouscommunitiesaremainlydistributedinthefloodplainandriverisland.TherearemainlygraminoidssuchasCynodondactylon,Panicumrepensect.,sedgessucha

5、sKyllingamonocephala,Carexnemostachysect.,forbssuchasPolygonumhydropiper,Lobeliachinensis,Hydroco砂l(fā)esibthorpioidesvar.batrachiumect.,hy擘,ophilousshrubssuchasSalixchaenomeloidesandAdinarubella.Semi.hygrophilouscommunitiesaredistributedinthezonefartheraway丘omth

6、ewater,includingfloodplain,riverislandandriverbank.Celosiaargentea,Xanthiumsibiricum,Moslascabra,Vitexnegundovar.cannab}foliQ,PterocaryastenopteraareSemi-hygrophilousplantswhichweredistributedinfloodplainandriverisland.Andthevegetationofriverbankismainlycompo

7、sedofarbor,butthearborspeciceissingle.whichbelongtoPterocaryastenoptera.Inaddition,thereareafewCinnamomumbodinierigrowingontheriverbank.5.Alongthe17samplingtransectsthedistributionofplantcommunitymainlypresentedinthefollowingecologicalseriesof“aquaticplant—hy

8、grophilousplant---semi-hygrophilousplant’’under也eimpactofsurfacewaterlevelintheLijiangRiverwetland.Itreflectstheshorewardzonationofthewetlandvegetation.Threekindsofecologicalseriesareaval

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