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当前位置:首页 > 建筑/环境 > 工程监理 > 4种木本植物在潜流人工湿地环境下的适应性与去污效果
34420142ACTAECOLOGICASINICAVol.34No.4Feb.2014http//.ecologica.cn2012BAC09B0313B147【2012】-3472013-05-192013-10-12*Correspondingauthor.E-mailwuxiaofu530911@vip.163.comDOI10.5846/stxb201305191110.4.2014344916-924.ChenYHWuXFHaoJLiKLLiuJ.Theadaptabilityanddecontaminationeffectoffourkindsofwoodyplantsinconstructedwetlandenvironment.ActaEcologicaSinica2014344916-924.4*410004414、、“”“”“”3CO24“”1100—1300。23、、4。34。4TN40.2%TP80.8%。CODCr15.4%NH+4-N61.8%。TheadaptabilityanddecontaminationeffectoffourkindsofwoodyplantsinconstructedwetlandenvironmentCHENYonghuaWUXiaofu*HAOJunLIKelinLIUJunInstituteofEnvironmentalScienceandEngineeringCentralSouthUniversityofForestryandTechnologyChangsha410004ChinaAbstractTosolvetheproblemofplantdiebackoverwinterfourkindsofwoodyplantshavebeenappliedtoconstructedwetlandandaseriesofphysiologicalandbiochemicalindicatorshavebeenmeasuredtoanalyzetheadaptabilityanddecontaminationcapabilityoftheplants.Theresultsshowedthat1Thediurnalvariationofthenetphotosyntheticrateofoleandergardeniaandprivetwasofa“TwinPeaks”typewhilethehibiscuswas“unimodal”typethediurnalvariationoftheleavesstomatalconductanceofhibiscuswasof“unimodal”typewhiletheotherthreevarietiesshowednoobvioustrend.ThehighestpeaktimeofthefourplantswasinconsistentandthediurnalvariationofCO2concentrationintheplantcellswascontrarytothediurnalvariationofthenetphotosyntheticrate.Thediurnalvariationofthetranspirationrateofthefourwoodyplantswasof“unimodal”typewiththepeaktimeappearingat1100—1300.2TheChlorophyllcontentofprivetislowcomparedtothatoftheotherthreekindsofplantswhichareallsimilarlyhigh.Thehibiscusandgardeniahadthehighestaccumulationofmalondialdehydewhiletheligustrumlucidumcontainedthelowestaccumulation.Theneriumoleanderhadthehighestnitrogenandphosphoruscontentandthehibiscussyriacushadthelowestrelatedtothebiomass.http//.ecologica.cnThetotalphosphorusaccumulationofthegardeniawaslow.Theureaseactivityofthematrixwashigherintheoleanderandhibiscusthaninthegardeniaandprivetandtheactivityofmatrixphosphatasewasapproachinginfourplants.3Thechangeofexternalmorphologyandinternalstructure.Externalmorphologyisintroducedintowetlandsonfourkindsofwoodyplantsgrowingoutoftheaquaticrootsystemofsignificantlyincreasedwhitefibrousrootrootnumberandsignificantlymorelandsoilcultivationconditionssuggestingthatthefourkindsofplantrootsystemcanadapttoanartificialwetlandenvironment.Ontheinternalstructureoffourkindsofbaconwithahydroponicplantsoilrootsystemhavebiggerdifferencesintheinternalstructure.Thesoilbaconsystemorganizationisverydensebutaftertheintroductionofwetlandplantsrootsystemshavedevelopedaerenchyma.4TheresearchintothedecontaminationeffectoffourwoodyplantsinconstructedwetlandshowedthatoverthewholetestTNremovalratewasonaverage40.2%.TPremovalratewasonaverageupto80.8%.TheloweraverageremovalrateofCODCrwas15.4%theaverageremovalrateofNH+4-Nwas61.8%andthechangebetweeneachmonthusuallyappearsasachangeofseasonaltemperaturechangerule.Thehigherthetemperaturethegreatertheprocessingefficiencyandatlowtemperaturesthetreatmenteffectispoor.Thereforethisresearchintothefourkindsofwoodyplantscanbewellappliedtotheundercurrentofartificialwetlandsystems.KeyWordsverticalflowconstructedwetlandswoodyplantadaptabilitydecontaminationeffect、---、、1-2。、3-5。、、、6。7、8、9、10。Phragmitesaustralis、Cannaindica、Cyperusalternifolius、Typhaangustifolia、Scirpusvalidus、Pontederiacordata11-12。13。10—20cm14、“”。4、、、4。11.14NeriumoleanderHibiscussyriacusGardeniajasminoidesLigustrumlucidum4。71944http//.ecologica.cn1.2201156—910—7。1m3—5cm40cm5cm15cm10cm。1Fig.1Processofthetreatmentsystem1。。CODCr108.26—125.74mg/LTN39.53—44.47mg/LTP2.09—2.43mg/L。0.4m2·d20h。1.31.3.1LI-6400。1516。1.3.2N、P。80℃。H2SO4-H2O21718。PAPA=PC×PB1PAPCPB。1.3.319。1.3.42024h100gNH3-Nmg24h100gmg。1.4SPSS12.0。22.12Fig.2Thedailyprocessofnetphotosyntheticrateofdifferentkindsofplants2.1.142、、“”1200113001400—1500“”1400。43“81934http//.ecologica.cn”1200310009001200。4CO244CO21400CO29001400。45“”1100—1300。3Fig.3Thedailyprocessofstomatalconductanceofdifferentkindsofplants4CO2Fig.4ThedailyprocessofcellsbetweenCO2concentrationofdifferentkindsofplants5Fig.5Thedailyprocessoftranspirationrateofdifferentkindsofplants2.1.2、、、、、、1。134、、4。2.1.34646.3cm4。4741Table1Compartmentphysiological-biochemicalcharacteristicofthe4plantspeciesPlantspeciesTheChlorophyllcontent/mg/gTheMalondialdehydecontent/nmol/gAmountNuptakeofplant/mg/AmountPuptakeofplant/mg/Ureaseenzyme/mg/100gPhosphataseenzyme/mg/100gNeriumoleander1.212.2614098.53902.3135.5127.67Hibiscussyriacus1.633.401706.16492.0030.7730.67Gardeniajasminoides1.613.343855.8181.9313.2031.33Ligustrumlucidum0.881.903709.14245.7114.0628.3391944http//.ecologica.cn64Fig.6Morphologicalchangesinthewetlandbeforeandafterthe4speciesofwoodyplants74Fig.7Theinternalstructureofthewetlandbeforeandafterthechangeof4kindsofwoodyplants。2.242.2.1TNTN8TNTNTN02934http//.ecologica.cn40.2%。TNTN111112—2TNTN30.0%3TN6TN50.6%。8TNFig.8ChangeofTNconcentration2.2.2TPTP9TPTP80.8%。1012TPTP74.5%TPTNTP。1TP3TP4。。9TPFig.9ChangeofTPconcentration2.2.3CODCrCODCr
本文标题:4种木本植物在潜流人工湿地环境下的适应性与去污效果
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