水生植物群落對水體中氮磷凈化效果研究.pdf

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2、紙質文檔，可以借閱或上網(wǎng)公布本學位論文的部分或全部內(nèi)容，可以采用影印、復印等手段保存、匯編本學位論文。學校可以向國家有關機關或機構送交論文的電子和紙質文檔，允許論文被查閱和借閱。(保密論文在解密后遵守此規(guī)定)保密論文注釋：本學位論文屬于保密論文，密級：——保密期限為——年。學位論文作者簽名：位瞼，指導教師簽名：日期：莎牛茸6A；丑日期：AbstractInordertostudythespatialandtemporalvariatio

3、nsofnitrogenandphosphorou8inartificialwetlandsafterexogenousnutrientinput，mosaiccommunitiesofdlfferentplantspeciesweresetupinacementchannelingreenhouseAdditionofNandPnutritionalwasintwomanners：singleexogenousnutrientinpu

4、tandcontinueexogenousnutnentinputAftertheadditionofNandPnutritionalsolutionstheconcentra‘10nSofdissolvedtotalnitrogen(DTN)，dissolvedtotalphosphorous(DTP)，NH4-N、N03‘-NandN02。Ninthesurface，middle，andbottom1ayersofthebulkwa

5、terweredeterminedregularlyTheresultsshowthat：(1)TheDTN，NH4-N，TPwereremovesignificantlybythecommunitiesofrnrn冊ireSaustralis-,4cornscalamuscommunity,Lemnaminorco啪lun∽jLln日ophornglomeratacommunity,Trapaquadrispinosacommunit

6、y,Tr∞nquadrispinosaHydrillaverticillatacommunity,andHpdrmnverticllQtnMyriophyllumspicatumcommunity，andthatofN03--Nwas1essobvious(2)UndertheconditionsofhighNandPnutrientloads(DTN70mgnNH4十一N428mg’L～；TP042mgL’1)，theorderofD

7、TNremovalefillciencvwaS，向心咿2z飽s口搬刪括ACORMScalamuscommunityLemnamino，communityLz口d叩ho陽glomeratacommunityTrapaquadrispinosacommunityZ沱護日quadrispinosaHydrillaverticillatacommunity汐dr滋nve衙clIntnmyrjophyllumspicatumcommunity；t

8、heorderofNH4-NremovalefficiencvwasL蝴刀口聊7nDrcommunityCladophoraglomeratacommunityP辦朋冊娩snuS臼QilSAcoruscalamuscommunityTrapaquadrispinosaHydrillave州clIntncommunl夠緲咖f砌verticillataMyriophyllumspicatumcommunity砒陽quadrispinosac

9、ommunity；theorderquadrispinosaHydriilaverticillataofDTPremovalefficiencywasTrapacommunityLemnaminorcommunity，廳n臼lgm7五Ps口ustralisAcoruscalamuscommunityTrapaquadrisp辦幻s口communitvLlndophornglomeratacommunityHydrillaverticil

10、lataMyriophyllMmspcn‰mcommumtyTheremovalefficiencyofNandPnutrientswashigherinthecommunitv砒1rapnquadrispinosaHydrillaverticillatathanintheTrapaq醣口drlspinos僅communityandHydrillaverticillatacommunityTheresultsshowedthatther