39LandscapeArchitectureandEco-planningDesign/SpecialResearchontheApplicationofMulti-stageConstructedWetlandsinLandscapeArchitectureACaseStudyofSidwellFriendsMiddleSchoolLILiangXUXiCHENYaoAbstract:Withtheacceleratingofurbanization,urbanwatershortageandwaterqualitydeteriorationhaveaffectedthesustainabledevelopmentofourcountry.Comparedtothetraditionalsewagetreatmentinfrastructure,constructedwetlandshavebecomethefocusofresearchandapplicationbecauseoftheirbeautifullandscapefeaturesandeffectivewaterpurificationfunctions.Thispaperelaboratedtheconception,features,advantagesandweaknessesofmulti-stageconstructedwetlands,anddiscussedthemulti-disciplinecooperationbetweenmulti-stageconstructedwetlandsandlandscapearchitectureaswellasthemaintaskoflandscapearchitectsinthedesignprocess.TakingSidwellFriendsMiddleSchoolasanexample,theresearchofmultidisciplinarycollaborativedesign,locationandsitedesign,waterpurificationsystemdesign,plantselectionanddesignandotherdesignmethodsareelaboratedtopromotethetechnologiesandoperationoftheconstructedwetlandswhicharemoreinlinewithournationalconditions.Keywords:LandscapeArchitecture;LandscapeInfrastructure;ConstructedWetlands;WaterTreatment;Multi-stageCirculation;MultidisciplinaryCollaborationFoundation:EcologicalLeisureandHealthProtectionUrbanForestConstructionResearchforYouthscienceandtechnologyprojectsofBeijingMunicipalBureauofLandscapeandForestry;TheCentralUniversityFoundationSpecialFundsforLandscapeArchitecturePlanningandDesignAcademicResearchTeam40141LandscapeArchitectureandEco-planningDesign/Special422343LandscapeArchitectureandEco-planningDesign/Special45446745LandscapeArchitectureandEco-planningDesign/Special