华北地区潜流人工湿地浮水植物气候适应性分析_英文_赵振国

StudyontheFloatingPlantClimaticAdaptationofUndercurrentConstructedWetlandinNorthChinaZHAOZhen-guo*，LIUliNorthChinaUniversityofWaterResourcesandElectricPower，Zhengzhou450011Abstract［Objective］TheaimwastochooseappropriatefloatingplantinthewetlandinthenorthChina．［Method］PistiastratiotesL．，Eich-horniacrassipes，andHydrocharisdubia(Bl．)Backerwereplantedintheaquaticbiologicalpoolofconstructedsubsurfaceflowwetlandsysteminthereservoir．Throughfiledinvestigation，thegrowthofthethreekindsofplantswasstudiedandtheiradaptabilitytothenorthernclimatewasconcluded．［Result］Judgingfromthegrowthspeedandstateofthethreekindsoffloatingplants，thebiologicalcharacteristicofPistiastratiotesL．canperfectlyadapttheenvironmentinthepoolinthereservoir，followedbytheEichhorniacrassipes．ThegrowthstateoftheHydrocharisdu-bia(Bl．)Backerwastheworstoneanditcannotadapttothenorthenvironment．［Conclusion］Itprovidedreferencesforthechoiceofartificialfloatingplantinthenortharea．KeywordsNorthChina;Undercurrentconstructedwetland;Duckwood;ClimaticadaptationReceived:June29，2011Accepted:August29，2011SupportedbyNationalWaterSpecialProjectRiverWaterEnvironmentComprehensiveManagementTechnologyStudyandComprehensivedemonstration(2008ZX07209-002-002);ChinaInstituteofWaterRe-sourcesandHydropowerResearchOpenFund(IWHRKF201013)．*Correspondingauthor．E-mail:zhao_zhenguo@sina．comConstructedwetlandtechnologyissuitabletoChina'sna-tionalsituation，especiallyforthesewagetreatmentinthemassivecountryside，irrigationareaandmiddleandsmalltowns．IthasabroadapplicationfutureinChina［1－2］．Aftertheconstructionoftheconstructedwetland，theoperationmanagementisanessentialjob．Thequestionashowtoexertthemaximumenvironmental，economicalandsocialeffectsoftheconstructedwetlandhasbeenanewsubject［3－7］．GuantingReservoirHeituwawetlandsystemdemonstra-tionprojectisaSino-GermanCooperatedProgram，acrucialprojectforthekeytechnologystudyanddemonstrationofeco-logicalenvironmentintheYongdingheregion．Throughrecentyears'operationoftheconstructedwetland，theconstructedwetlandh