简介：Sourceseparationisthebasicpremiseformakingeffectiveuseofhouseholdwastes.IneightcitiesofChina,how-ever,severalpilotprojectsofsourceseparationfinallyfailedbecauseofthepoorparticipationrateofresidents.Inordertosolvethisproblem,identifyingthosefactorsthatinfluenceresidents’behaviorofsourceseparationbecomescrucial.Bymeansofquestionnairesurvey,weconducteddescriptiveanalysisandex-ploratoryfactoranalysis.Theresultsshowthattrouble-feeling,moralnotion,environmentprotection,publiceducation,environmentvalueandknowledgedeficiencyarethemainfactorsthatplayanimportantroleforresidentsindecidingtoseparatetheirhouseholdwastes.Also,accordingtothecontributionpercentageofthesixmainfactorstothetotalbehaviorofsourceseparation,theirinfluencingpowerisanalyzed,whichwillprovidesuggestionsonhouseholdwastemanagementforpolicymakersanddecisionmakersinChina.

简介：WiththeincomeincreaseofelderlypeopleinBeijingandtheimprovementofleisurefacilitiessince2000,thequalityofelderlypeopleleisurelifeinBeijinghasobviouslyincreasedcomparedtotenyearsago.Accordingtotheinvestigationandcomparativeanalysisonmorethan900elderlypeople,whousuallyexerciseinpublicparksinBeijingCity,wehavefoundoutseveralnewfeaturesofelderlypeople’soutdoorrecreationinBeijing:theincreaseoftheleisuretime,theexpansionofleisurespace,theindividuationofinterestandthediversificationofconsumption.Theleisurelifequalityevaluationindexsystemofurbanelderlypeoplecanbebuiltbasedontheseanalyses.Inordertoaccommodatethedevelopmenttendencyofelderlypeople’sdemandforleisurediversification,weshouldstrengthentheorganizationandmanagementofelderlypeople’sleisureactivityinurbanconstruction,andpaymoreattentiontofunctioncomplementationbetweencommunitiesandparks.

简介：Particlesbehaviourwasmonitoredandanalyzedinastormwaterwetlandoveraperiodof4months(June-September,2009).Theresultsindicatedthattheparticlesbehaviourcanbeaffectedbymanyprocesses,suchassedimentation,resuspension,adsorptionandreleaseinstormwaterwetlandsduringdrydays.Duetotheeffectsofthesefactors,theparticlesremovalefficiencycalculatedbasedonthesettlingtheorywassignificantlyhigherthanthevalueobtainedusingthemeasuredparticlesnumberconcentration.Andthemeasuredefficiencyshowedaturningpointintherangeof2-4μm,whichwaswithinthecolloidalparticlesrange.Analysisofparticlesizedistributionshowedthatparticleswerefinerintheoutflowthaninflowduetosedimentationofthecoarseparticlesandresuspensionofthefineparticlesinthewetland.Particlesindifferentsizerangesplaydifferentrolesintheircontributiontoturbidityandtotalsuspendedsolidsconcentration.Thefinerparticles(lessthan10μm)showedacloserrelationshipwiththeturbiditywhilecoarserparticles(>4μm)weremorerelatedtototalsuspendedsolidconcentration.