城市医疗废物处置设施空间选址评价

1,13,1,2(1.,100084;2.,100029):,GIS,GISGeodatabase.,46,2;,,.,.:;;;;:X705:A:025023301(2006)0220386206:2005203201;:2005205228:985;:(1978),,,.3,E-mail:[e-mail]ctionAssessmentofUrbanMedicalWasteTreatmentFacilityGUORu1,JIAHai2feng1,CHENGSheng2tong1,LIXiu2jin2(1.DepartmentofEnvironmentalScienceandEngineering,TsinghuaUniversity,Beijing100084,China;2.DepartmentofEnvironmentalEngineering,BeijingChemicalEngineeringUniversity,Beijing100029,China)Abstract:Basedontheprincipleofregionaldifferentiationandgravitymodel,thispaperproposesaGIS2basedurbanmedicalwastetreatmentfacilityspatialsiteselectionassessmentmethod.AndthemethodisimplementedbyuseofthethirdgenerationGISdatabasemodel,Geodatabase.TakingacityinPearlRiverDeltaasacase,basedonits46basicunits,twoscenariosformedicalwastecentraltreatmentaredesignedandanalyzedbymeansofscenarioanalysis(SA)andthenthebetterscenarioisrecommended.Theassessmentresultoftraditionalcostmodelshowsthesameconclusion.Furtherspatialanalysisshowsthatthedistributionofmedicalwastequantityanddensityarebothrelatedtothebetterscenariospatially.Keywords:siteselection;geographicinformationsystem(GIS);geodatabase;medicalwaste;assessment,199847,3.,.,,.2004,,300,2080t/d,.,,,,[13].(GeographicInformationSystem,GIS),[4,5].,GIS,Geodatabase,,.11.1,,,,.4000t,,,.1.227220062ENVIRONMENTALSCIENCEVol.27,No.2Feb.,2006泊星石(ScenarioAnalysis,SA).,,,.,,.,;,.,,,,SA,,.78321.4,.,.,,,.,(GravityModel,GM),,.Index=ni=1PiDi(1),Index;Pi(%);Di(km).Index,,.1.5,,.:C=kQ(2),C;k;Q.(3):C=hQ+C(1-)n(1+r)n(3),C;h,;Q;;r;n.,,.2Geodatabase:Pentium();Windows2000XP,ESRIArcinfo81x,MicrosoftAccess.:1250000;;;.:,,CoverageshapefileCADImageInfoDBMSExcel.Arcinfo81x,Geodatabase,GIS.:,.,3.,.3Fig.3Distributionofmainmedicalwastesources3:(1)2020.(2),.(3),,,.,.,.2,,;,88327.,,Geodatabase,,.,,,.,2,GIS4.4(12)Fig.4Futurescenarios(scenario1andscenario2)441146,2.GIS,,(1),.,,1,,1.,1,2.,,.4.2,,,.2.1Table1BasicgravityindexofeachtownID(1)/km(2)/km/%(1)(2)01191622718120108110201720281074911810156113101210321140271786151013001230444157121201017201240188052012524163313201160113062811029189319501140113071318840101117701130104082315820183216001110112095112912146512101100142103017413169214901080118518141993.,1,.1.98322Table2Coefficientofcostmodel/a/%/%104/(td)-1/(tkm)-1/t-11535151502101030003Table3Assessmentresultofcostmodel/td-1104/104/a-1104/a-1104/a-11203000102011030310504102203000102011046417544144.3,,Geodatabase.,.()(5),,,,191195kg/(dkm2),16140kg/(dkm2).1,.,1.5Fig.5Distributionofmedicalwastequantityanddensity,,.,,.,,,.,GIS,,,Geodatabase,.093275,,,.,2,Geodatabase,,,.,.,.:[1],,.[J],,2002,21(8):485512.[2],,.[J].,2003,22(12):10271030.[3],,,.[J].,2003,4(8):2730.[4]AspinallR,PearsonD.Integratedgeographicalassessmentofenvironmentalconditioninwatercatchments:Linkinglandscapeecology,environmentalmodellingandGIS[J].JournalofEnvironmentalManagement,2000,59(4):299319.[5]DaiFC,LeeCF,ZhangXH.GIS2basedgeo2environmentalevaluationforurbanland2useplanning:acasestudy[J].EngineeringGeology,2001,61(4):257271.[6]ToshihiroOkubo.ThebordereffectintheJapanesemarket2aGravityModelanalysis[J].J.JapaneseInt.Economies,2004,18:111.[7]HernndezJulio,GarcaLorenzo,AyugaFrancisco.Assessmentofthevisualimpactmadeonthelandscapebynewbuildings:amethodologyforsiteselection[J].LandscapeandUrbanPlanning,2004,68(1):1528.[8],,.[J].,2001,23(5):5356.[9],.[J].,2002,24(5):312313.[10],,.[J].,2002,15(2):6364.[11],,,.[J].,2003,26(1):96100.1932