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,2010,30(9):1876-1881ActaBot.Boreal.-Occident.Sin. :1000-4025(2010)09-1876-06①3吴 湘1,王友慧2,郭建林2,韩志萍1＊,叶金云1(1,313000;2,313000) :,,、。,3,50d,(80.8%)(62.6%)(34.4%),(73.2%)(27.1%)(17.2%);,85%60%,,45%。,(),(),()。:;;;;:Q945.79:ANandPRemovalfromPondEffluentwithThreeHydrophytesWUXiang1,WANGYou-hui2,GUOJian-lin2,HANZhi-ping1＊,YEJin-yun1(1HuzhouTeachersCollege,Huzhou,Zhejiang313000,China;2ZhejiangInstituteofFreshwaterFisheries,Huzhou,Zhejiang313000,China)Abstract:Inordertoinvestigatehydrophyteroleonthepurificationofpondeffluentwhichwaseutrophic,threehydrophytes(PhragmitescommunisTrin.,CeratophyllumdemersumandTrapaquadrispinosaRoxb.)weregrownintreatedwaterandasanone-planttocompareeffectivenessofnutrientremoval.Itcanbeconcludedthatallthehydrophyteshadagoodperformanceonremovalnutrientsfromtreatedwaterratherthanwithouthydrophyte.Aftergrowingthethreehydrophytes50days,thetotalnitrogen(TN)wasremovedbyP.communisTrin.(80.8%)T.quadrispinosaRoxb.(62.6%)C.demersum(34.4%).Thetotalphosphorus(TP)wasremovedbyP.communisTrin.(73.2%)C.demersum(27.1%)T.quadrispinosaRoxb.(17.2%).P.communisTrin.andC.demersumgrewbetterinpondeffluentthanthatofT.quadrispinosaRoxb.duringexperimentperiod.TheaveragelivabilityofP.communisTrin.andC.de-mersumreachedupto85%and60%,respectively.However,T.quadrispinosaRoxb.onlykeptunder45%.Forthethreehydrophytesgrowingunderthesamecondition,P.communisTrin.wasthemosteffectivehy-drophyteforTNandTPremoval,T.quadrispinosaRoxb.wasnextforTNremoval.However,C.demer-sumwasbetterthanT.quadrispinosaRoxb.forTPremoval.①:2010-05-08;:2010-07-18:(2008ZX07101-006-09);(2006C12017);;(2007A01);(2010): (1981-),(),,,。E-mail:wwxx1981@126.com＊:,,。E-mail:hzp@hutc.zj.cnKeywords:hydrophytes;pondeffluent;eutrophication;nitrogen(N);phosphorus(P) ,。,,[1],,,,,。[2],。,,。,,[3]。、、[4,5],[6]。、、[7]。[6],,,3,(PhragmitescommunisTrin.)、(Ceratophyllumdemersum)(TrapaquadrispinosaRoxb.),、,,。1 1.1 。,。7100cm×60cm×100cmPV,20cm(),,30cm,80cm,。20,6,2。1.2 4～5d1,,,3,。:,,,250～300mL;:1～2,。1.3 ,24～48h。《》()[8],(TN)(TP);《》[9],(TN)(TP)。(mg/kg)。1.4 3,S≤1%,χ±S。DPS7.05(P0.05),。2 2.1 33(、),。,85%;,60%～70%;,,45%。,18779 ,:3,,,,;,,,。2.2 32.2.1 ,,(0),1。,,。1,,。,(50d)30.7%,;3,,(P0.05);,50d80.8%、62.6%34.4%。,,,,。2.2.2 32,(0)。,,,,,10。,、,(P0.05),30d;,10d,(P0.05);(50d),、73.2%、21.7%17.2%。,,,,。2.3 32.3.1 3,3。,(0d),;,,;(50d),。,1 3Table1 EffectofthreehydrophytesontotalnitrogenremovalfrompondeffluentDeterminationindexTreatmenttime/dControlP.communisTrin..quadrispinosaRoxb.C.demersumTotalnitrogen/(mg/L)01.8926±0.1578b3.2466±0.5247a1.8563±0.1920c1.7847±0.0566d101.7756±0.2568a1.0470±0.3090d1.6045±0.4397c1.6468±0.0915b201.4944±0.1577a0.7568±0.0568d1.3398±0.4480c1.4377±0.1505b301.5243±0.0242a0.4533±0.1521d1.1582±0.1139c1.3730±0.4314b401.1330±0.2575a0.6962±0.3356d0.7424±0.3471c0.9298±0.2165b501.3111±0.0147a0.6231±0.1401d0.6935±0.0173c1.1708±0.0436bRemovalefficiency/%106.2d67.8a13.6b7.7c2021.0c76.7a27.8b19.4d3019.5d86.0a37.6b23.1c4040.1d78.6a60.0b47.9c5030.7d80.8a62.6b34.4c :0.05;。Note:Thedifferentnormallettersindicatesignificantdifferenceamongdifferenttreatmentsat0.05level.Thesameasbelow.1878 302 3Table2 EffectofthreehydrophytesontotalphosphorusremovalfrompondeffluentDeterminationindexTreatmenttime/dControlP.communisTrin..quadrispinosaRoxb.C.demersumTotalphosphorus/(mg/L)00.5914±0.0325b0.5812±0.3425d0.5859±0.0028c0.5975±0.0659a100.6399±0.0008b0.7571±0.3340a0.4361±0.2764d0.5784±0.0287c200.6618±0.0598b0.4630±0.1001d0.5904±0.3044c0.7497±0.0743a301.0717±0.0130a0.2541±0.1571d0.6515±0.0826b0.6303±0.2210c400.8275±0.0170a0.2764±0.1570d0.6463±0.0293b0.5385±0.0162c500.6358±0.0316a0.1556±0.0289d0.4854±0.0912b0.4679±0.2743cRemovalefficiency/%10-8.0c-30.2d25.6a3.2b20-11.9c20.3a-0.8b-25.5d30-81.2d56.3a-11.2c-5.5b40-39.9d52.4a-10.3c9.9b50-7.5d73.2a17.2c21.7b3 3Table3 ComparisonofthecontentsofnitrogeninthethreehydrophytesDeterminationindexTreatmenttime/dP.communisTrin.T.quadrispinosaRoxb.C.demersumNcontent/(mg/kg)08.53±0.14b10.90±0.042a8.17±0.091c108.77±0.30c12.23±0.30b13.44±0.15a209.32±0.29c11.44±0.19a11.03±0.21b3010.96±0.13c11.79±0.16a11.36±0.18b4013.22±0.22b14.06±0.16a10.52±0.30c5014.52±0.17a13.92±0.26b11.52±0.20cIncreasedvalue/(mg/kg)100.24c1.33b5.27a200.79b0.54c2.86a302.43b0.89c3.19a404.69a3.16b2.35c505.99a3.02c3.35b4 3Table4 ComparisonofthecontentsofphosphorusinthethreehydrophytesDeterminationindexTreatmenttime/dP.communisTrin.T.quadrispinosaRoxb.C.demersumPcontent/(mg/kg)01.66±0.23b1.33±0.34c3.46±0.19a101.94±0.10c2.39±0.23b4.95±0.16a201.73±0.24c2.24±0.29b4.92±0.26a302.03±0.32c2.58±0.30b6.60±0.16a402.32±0.30c2.81±0.19b6.59±0.23a504.82±0.42b2.98±0.26c7.49±0.33aIncreasedvalue/(mg/kg)100.28c1.06b1.49a200.07c0.91b1.46a300.37c1.25b3.14a400.66c1.48b3.13a503.16b1.65c4.03a18799 ,:3,,[10]。3,,。,,20d,。、(0)。3,3,。,30d,;30d,。,3(3),14.52mg/kg(),[11],32.15mg/kg(),16.97mg/kg()。13～14mg/kg()。,,,,。2.3.2 4,,(0d)(50d),10～30d,3(P0.05)。,,3,;,,。,4～7mg/kg(),50%,。,,[12]。,,(),,,,,,,()()()。3 ,()、()()3,(80.8%)(62.6%)(34.4%),(73.2%)(27.1%)(17.2%)。3,,,,,。,,。,[13],,。、。,,,