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2008,28(7)661~666ChinaEnvironmentalScienceGIS*,,(,310028),(),,GIS..20055.38,(65%),(30%),(5%).,.(GIS)X82A10006923(2008)07066106Mappingdirectusevalueofecosystemservices:aGIS-basedapproach.CHENNeng-wang*,ZHANGXiao-yin,LUXiao-mei(DepartmentofEnvironmentalScience,ZhejiangUniversity,Hangzhou310028,China).ChinaEnvironmentalScience,2008,28(7)661~666AbstractAGIS-basedapproachdesignedforspatiallyvaluationandvisualizationwasdevelopedtoestimatedirectusevalueofecosystemserviceandtomapresultsforacasestudyrepresentingacountyscale.TheapproachhighlightstheuseofGIStocollectdata,spatialanalysis,andcalibrateeconomicvaluesofecosystemservice.Threecorestepsofspatialvaluationforagriculturalproducts,forestproducts,andtourismassetswereinvestigatedinthetechnicalframework.TheGIS-basedapproachwasimplementedinacaseofTiantaiCounty,ZhejiangprovinceinsoutheastChina.SelectedcomponentsofnaturalproductsandtourismassetsintheTiantaiCountyweremappedasdatalayersinaGIS,witheachlayercontainingmonetaryvaluesforevery25mcell.Theresultsofthiscasestudyshowedthatatotalvalueof538millionRMBsin2005,8.6%ofGDP,wasmostlycontributedbyagriculturalproducts(65%oftotalvalue)andforestproducts(30%oftotalvalue).Acurrentloweconomicvalueoftourismassetscanbeincreasedbydevelopmentofeco-tourismandecosystem-basedconservationandmanagement.Theeconomicvaluemapsofecosystemservicecanbeusedtoobtaindistributionofthenaturalcapitalandidentifyregionsneededmoreconcern.ThepresentstudydemonstratesthatGISisapowerfultoolformappingdirectusevalueofecosystemservice,andalsoprovidesasolidfoundationforintegratedvaluationofregionalecosystem,eco-environmentalzoningandplanning,aswellaspolicymaking.Keywordsecosystemservicesdirectusevaluegeographicinformationsystem(GIS)evaluationapproach[12],[3].,[410].(),(GDP),().,,,,,20071203(Y507063);(20070210)*,,nwchen@zju.edu.cn66228,.,,,GIS,.11.1,.,()3.,:,;;.,[6].,,.1.2,3:.,,;.,GIS;GIS.(),,GIS,.1.(DEM)()1/21/21Fig.1Avaluationframeworkformappingdirectusevalueofecosystemservice1.3(DEM),.,,7GIS663.GIS(MapInfo),.(),(8054),.ArcGISArcView.,,.1.4,,GIS,.:(,),(),;(,,,,);.,,(),,,();,,;,.1.5,.:(),,;,,;GIS,,.:Vf=M⋅P(1):M,m3;P,/m3.1.6DEM,2.:2[4],(1/2);,,[4],100,500,1000,5000m5,1/230%,25%,20%,15%,10%,,.DEM,ArcView(Viewshed),,0,,(1~n),,,1/2,;2,.:Vt=Vt(a)+Vt(b)(2):Vt(a);Vt(b),50%.Vt(a)=∑Acell⋅Pi(3):Acell;Pi,/.Vt(b)=∑Bcell⋅Pi.(4):Bcell;Pi/.1.71.41.51.63,.ArcView66428Zonalstatistics,,,.22.1,120°41′E~121°15′E,28°57'N~29°20'N.54.7km,33.5km,1423.8km2.,.,,1.63%,192.7m3,91%,1.6%,7.4%.,84.7%,3.8%;,53.5%,33.0%,10.5%,3.0%.,()268,0.19/km2.72.1Table1LanduseandcropsinTiantaiCounty(km2)(%)()131.49.2()70.44.9()115.18.1()51.43.6()46.13.3()834.558.6()19.21.440.52.8115.28.12.2.DEM(25m);(1׃5);.80.200553421*,18695,34726.4,446155,20016,9261,42834m3.[11],350,315,280,250/m3.2005721382*,,,2,2764.,.GISArcView3.3MapInfo7.5,25m,2005.2.3,[(2a)],,[(2b)].,01064.3/,,43.6/km2()3.1/km2()14.2,,.16076,.3(a).3(b).,*..2005.7GIS665,5000m0.12/,1000~5000m1.57/.,.2758,200527640.2%,.,(394.8),(356.7);(7.1/km2),(5.0/km2),,.2Fig.2MappingtheeconomicvalueofagriculturalproductsforTiantaiCounty,andcombinedlanduse.(933562)3Fig.3MappingtheeconomicvalueoftourismforTiantaiCounty,andsketchmapofcalculation3,20055.38,GDP(62.50)8.6%,(65%),(30%).,5%.,,,,,,,.,,,,,.,,66628,.,,.,,().3GIS,,,.,,,.,,,.[1]CostanzaR,d′ArgeR,GrootR,etal.Thevalueoftheworld’secosystemservicesandnaturalcapital[J].Nature,1997,387(6630):253–260.[2]DailyGC,SoderqvistT,AniyarS,etal.Ecology-Thevalueofnatureandthenatureofvalue[J].Science,2000,289(5478):395–396.[3]TunerK.Economicsandwetlandmanagement[J].Ambio.,1991,20(2):59–61.[4]EadeJDO,MoranD.Spatialeconomicvaluation:benefitstransferusinggeographicalinformationsystems[J].JournalofEnvironmentalManagement,1996,48(2):97–110.[5]TroyA,WilsonMA.Mappingecosystemservices:PracticalchallengesandopportunitiesinlinkingGISandvaluetransfer[J].EcologicalEconomics,2006,60(2):435–449.[6],,.[J].,1999,19(3):179–223.[7],,.[J].,1999,19(5):607–613.[8],.[J].,2000,45(1):17–22.[9]GuoZW,XiaoXM,GanYL,etal.Ecosystemfunctions,servicesandtheirvalues–acasestudyinXingshanCountyofChina[J].EcologicalEconomics,2001,38:141–154.[10],,,.[J].,2003,18(2):189–196.[11],,.[M].:,2004:9596.(1976),,,,,.20.,,.20082007,2008.,,,,.