271Vol.27No.120083CARSOLOGICASINICAMar.2008:1001-4810(2008)01-0080-06X,,(,100101):,,,125,PRIM;,,PRIM,,,,,;,,:;;;:F592:A0,115km2,,[1,2],,,,[36],,,,[710][1114],[15,16],,,,,,,,,,1,,,,,[36,1719],:(1):,,X:(40571059):(1975-),,,E2mail:carteryao@yahoo.com:2007-04-05(2):,,,,,(3):,,,,;,2.(Ceballas2Lascurain)1983[20],,[1116],,,,,,:(1):,,,,,,,(2):,,;,,(3):,,,,(4):,,;,,33.1,,(Pollution)(Risk)(Interation)(Monopolization),PRIM(1)1PRIMFig.1PRIMevaluationmodeltokarstecotourism:(1);(2),;(3),3.2PRIM,,118271:1PRIMTab.1Thereferencetabletogradefourparameters:PRIMPPw40%050%3050%100%60100Pr40%050%3050%100%60100Pg20%050%3050%100%60100RRd40%03060100Ra40%03060100Rp20%0,30,60100IIs40%03060100Ie40%03060100Ih20%03060100MMe40%060%3030%60%6030%100Mb40%060%3030%60%6030%100Mi20%03060100282008;;;,,,,(2),,2Tab.2ThemodifiedindextoparametersofPRIMmodelHwPw0100HrPr0100HgPg0100HdRd0100HaRa01003.3PRIM,(Et),PRIM,;,,:Et=1100(12PoRo+12RoIo+12IoMo+12MoPo)=1200(Po+Io)(Ro+Mo)=1400(P+I)(R+M)(1)P=Pw(1-Hw100)40%+Pr(1-Hr100)40%+Pg(1-Hw100)20%(2)R=Rd(1-Hd100)40%+Ra(1-Ha100)40%+Rp20%(3)I=Is40%+Ie40%+Ih20%(4)M=Me40%+Mb40%+Mi20%(5):Et,0Et100;PoRoIoMoPRIM,Po=Pö2,,38.261.8PRIM(2),0Et14.6,;14.6Et38.2,;38.2Et100,4PRIM,,,;,12,,(16),3232,Et,0Et14.6,,PRIM;(M)38.2,,,Et29.4,,,RM61.8;,,,38271:3Tab.3TheevaluationresulttableofthethreeexamplesEt9.85.829.4PPo18.6013.1520.4014.4242.0029.70Pw603030Pr303060Pg303030Hw50300Hr80500Hg3000RRo30.0021.2129.6020.9368.0048.08Rd303060Ra6010060Rp6060100Hd30200Ha60800IIo36.0025.4612.008.4942.0029.70Is30060Ie603030Ih0030MMo42.0029.7042.0029.7072.0050.91Me303030Mb6060100Mi30301002Fig.2PRIMmodelapplicationofthethreeexamples5,,,,,,,,,,PRIM;,,,482008[1],,,.[J].,2000,19(3):275-283.[2].[J].,1995,11(2):77-80.[3],.[M].:,1988.[4],,.[J].,2001,22(2):159-164.[5],,,.[J].,2001,20(1):41-46.[6],,,.[J].,2002,15(5):1-3.[7],.[J].,2007(4):105-108.[8],,.[J].,2001,20(1):64-68.[9],,.[J].,200723(8):756-680.[10],,.[J].,2002,22(5):638-480.[11].[J].,1997,52(6):518-527.[12],,.[J].,2001,16(4):6-10.[13],,.[J].,2007,22(1):[14].[J].,2007,48(4):113-116.[15].:[J].,2006,16(1):113-116.[16],.[J].(),2002,20(2):92-95.[17],.[J].,2005,24(4):282-287.[18],,.[J].,2005,26(5):374-377.[19].[J].,2006,18(2):61-65.[20]Ceballas2Lascurain.TheFutureofEcotourism[J].MexicoJournal,1987,1:13-14.EvaluationmodelofecotourisminSouthwestChinakarstregionYAOChang2hong,CHENTian,LIUJia2ming(InstituteofGeographicSciencesandNaturalResourcesResearch,CAS,Beijing100101,China)Abstract:SouthwestChinakarstareaisoneofthemainkarstzonesinChinaandalsothetourfocusintheworld.Becauseoftheuniquekarstlandscapeandthevirginenvironmenttheecotourismhasdevelopedrapid2lythereinthepast20years.Butlotsofenvironmentalchallengesarousedandthedevelopmentdeceleratedheavilyforitsspecialkarstenvironmentandenvironmentalvulnerability.Therefore,thekarstecotourismtheoreticalsystemisadvancedbasedonformertheoriesandanevaluationmodelnamedPRIMmodelisfounded.ThePRIMmodelismadeupof4parameters(Pollution,Risk,InteractionandMonopolization),12factorsand5modifiedindexes.BydiscussingsixtourismelementswithPRIMmodel,thedevelopmentmodeltokarstecotourismisbroughtforwardforsocialöenvironmentalöeconomicefficiencyandfitforSouthwestChinakarstregion.TheecotourismsituationofevaluatedobjectcanbeindicatedbyvalueofEtwhichistheresultofthePRIMmodel.Bytheway,primalproblemsandperfectmeasurescanbebroughtoutbythevalueof4parameters(Pollution,Risk,InteractionandMonopolization).ThePRIMmodelwasappliedtoevaluatetheecotourismsituationofLunanStoneForest,LijiangriverandTian’edongcave.Bytheresults,LunanStoneForestandLijiangRiverarenormativeecotourismandthevalueofmonopolizationpa2rametersishigh,butTian’edongcaveproximateecotourismandtheriskandmonopolizationparametersaresensitive.ThePRIMmodelisthefirstmathematicalmodeltoevaluateecotourisminvulnerablekarstarea,anditisanattempttosetupamathematicalmodeltodevelopecotourismtheories.Thestudyisbeneficialtokarstecotourismdevelopmentandthefrontieroftourismknowledge.Keywords:environmentalsusceptibility;ecotourism;evaluationmodel;karstregioninSouthwestChina58271: