灰色关联度分析法在土地评价中的应用

346()Vol.34No.6200712JOURNALOFCHENGDUUNIVERSITYOFTECHNOLOGY(Science&TechnologyEdition)Dec.2007[]167129727(2007)0620626204[]2007203207[];(SCJT2122007211)[](1979-),,,:GISRS,E2mail:[e-mail]1,2133(1.,610059;2.,100083;3.,610081)[],,,,,[];;;[]TP39:S159.2[]A,,,,,,[1]1[2]i(k)=minimink|x0(k)-xi(k)|+0.5maximaxk|x0(k)-xi(k)||x0(k)-xi(k)|+0.5maximaxk|x0(k)-xi(k)|:i(k)k{xi}{x0},xix0ki(k):ri=1NNk=1i(k):ri{xi}{x0}ri:Wi=rini=1ri100,(i=1,2,,n),2,[3],,,2.1,,8,4(1)2.2,{x0}2,,,,(x0)/100,,2:{x0}={4.51,4.4,4.59,4.56,4.46,4.59,4.55,4.43,4.37,4.64,4.56,4.25,4.4,4.16,4.63};{x1}={1,1,1,2.33,2.8,2.26,2.48,2.6,2.6,2,2,1,1,3.2,2};{x2}={1,1,1,1.7,2,2,1.8,2.09,2,1.57,2,2,1,2.17,2};{x3}={1.2,1,1,1.17,1.06,3.3,1.32,1.21,1.33,3,3,3,1.25,4,1.5};1Table1Factorsoflandevaluationanddevisionoflandgradeb/m22%801006.57.53252%10%//60806.5235810%25%//40606.52381525%407.522Table2Averageoutputandoriginaldataofevaluationfactorsx0x1x2x3x4x5x6x7x81450.56111.22.2112.467.21.142439.661112.1442.596.73.163459.29111212.247.71.844456.432.331.71.171.1723.275.910.735446.062.821.061.0943.238.11.336459.132.2623.31.0943.457.22.9937455.42.481.81.321.3243.065.71.428443.332.62.091.211.2133.255.72.349437.082.621.331.3313.296.85.71710463.7121.573143.237.83.01211455.712231.2913.125.62.01124251231.3342.87.11.5213440111.25212.76.64.35144163.22.1741.213.445.71.2715462.5221.51.513.5962.627266:{x4}={2.21,2.14,2,1.17,1.09,1.09,1.32,1.21,1.33,1,1.29,1.33,2,1.2,1.5};{x5}={1,4,1,2,4,4,4,3,1,4,1,4,1,1,1};{x6}={2.46,2.59,2.24,3.27,3.23,3.45,3.06,3.25,3.29,3.23,3.12,2.8,2.7,3.44,3.59};{x7}={7.2,6.7,7.7,5.9,8.1,7.2,5.7,5.7,6.8,7.8,5.6,7.1,6.6,5.7,6};{x8}={1.14,3.16,1.84,10.73,1.33,2.99,1.42,2.34,5.72,3.01,2.01,1.52,4.35,1.27,2.62}{xi}{x0}:r1=0.644();r2=0.836();r3=0.485();r4=0.843();r5=0.618();r6=0.737();r7=0.745();r8=0.593():r4r2r7r6r1r5r8r3,8:,2.3:Wi=ri8i=1ri100,(i=1,2,,8)32.4,,,4,3Table3Weightofriceevaluationfactorsr40.84315%r20.83615%r70.74514%r60.73713%r10.64412%r50.61811%r80.59311%r30.4859%4,3,2,1Wi,:4003403392802792202191601591003,93%,;,,,,1968[3],,,,,826()34[][1].[J].,2007,(8):46-47.[2].[M].:,2005.[3].[M].:,2006.[4].[M].:,1991.[5],,.[J].,2002,11(4):106-111.[6].[M].:,1992.[7].[M].:,1990.[8],,,.[J].,2002,(4):18-21.[9],.[J].,1992,(2):223-228.[10].[J].,2007,25(4):63-67.[11],,,.[J].(),2007,39(3):437-443.ApplicationofthegreyrelatedtheorytolandevaluationGUONa1,2,GUOKe1,WUJin2lu3,HEYong31.CollegeofInformationManagement,ChengduUniversityofTechnology,Chengdu610059,China;2.SchoolofEarthSciences&Resources,ChinaUniversityofGeosciences,Beijing100083,China;3.SichuanDepartmentofLandandResources,Chengdu610081,ChinaAbstract:Theauthorsselectsomefactors(suchasslope,rockexposure,irrigation,drainagecondition,soilconfiguration,availabledepthofsoil,pH,soilorganicmatter)asthebaseofthestudyandanalyzethefactorsbythegraysystemtheory.Theintensionofthisarticleistoapplythemethodtothelandevaluationbythecorrelativeanalysiswhichrelatestotheaverageoutputofrice.Theresultshowsthatthedrainageconditionshavethelargestdegreeofcorrelationwiththeoutput.Theareaisdevidedbyanextentofthelandscalebycalculationofweight.Themethodcanreducetheman2madeexperienceerrorandissimpletocalculate.Theresultdeservetrust.Keywords:graydegreeofcorrelation;landevaluation;factor;weight9266: