农用地定级因素法与修正法比较分析_马仁会

206200411TransactionsoftheCSAEVol.20　No.6Nov.　2004马仁会1,李小波2,李　强2,任向宁1(1.,050016;　2.,050011)　:,,、、,。()、()、、、,,。:农用地定级;因素法;修正法:F301.24　　　　:A　　　　:1002-6819(2004)06-0277-05:2003-10-28　:2004-10-12:(1962-),,,、。　,050016。Email:[e-mail]0　　,。,,,[1]。,,。、(),。《》[2],、3。,,,;,,,;,。。,,;,[3]。,。,1920.59km2(),18,32313.64hm2,16.8%。,,。,,。,。2003,《》。1　,。。Hi=∑p,ni=1,j=1Wjfij　Hi——i;i——,p;j——,n;Wj——j;fij——ij。,、,17,,。1。,。1　Table1　Factorsystemandweightofagriculturallandgradationwithfactormethod()()0.65-0.20-0.130.120.110.080.07150.15-0.10-0.110.140.070.0910.05-0.03--0.09-0.05850.05-0.03-0.05-0.03-0.200.110.130.0715pH0.090.090.060.05850.18-0.12--0.26-0.1690.200.300.060.300.060.400.080.051.000.050.400.040.100.400.040.200.02,[4]2774053。Mapgis,,65～100,70～90。,,7。2　,,、,,。Hi=Gi∑Wjkij　kij=Kij/Kj　Hi——i;Gi——i;Wj——j;kij——ij;Kij——ij;Kj——j。[5],,。《》、、2　Table2　Factorsystemandweightofagriculturallandgradationwithmodifyingmethod()()0.30.40.120.30.090.30.090.30.40.120.30.090.30.090.40.290.1160.280.1120.280.1120.150.061.01.01.01.00.40.40.40.40.20.2,、。、、3。,,,,,,。、,。(2)。、、、,,。,、3[6]。Gij=(TtjCLijUjKLjKcj)　Gi=∑GijRij=TtjCLijUj　Ri=∑RijYij=RijKLj　Yi=∑Yij　Gij——ij;Gi——i;Ttj——j;CLij——ji;Uj——j;KLj——j;Kcj——j;Rij——ij;Ri——i;Yij——ij;Yi——i。(Ri)(Gi),、,。400～7050。100～4800。,,。(Ri),1000,,7。(Gi),700,7,3。3　Table3　Markdivisionandareadistributionindifferentmethodsforagriculturallandgradation1234567≥9492～9489～9285～8980～8574～8074/%0.181.747.0818.5031.1329.9211.45Rij≥60005000～60004000～50003000～40002000～30001000～20001000/%0.222.157.8224.0131.2529.764.79Gij≥42003500～42002800～35002100～28001400～2100700～1400700/%0.400.782.459.9822.1238.2426.03　:。2782004　3　,,,,100,。,,、,。,。3.1　3.1.1　级别面积集中度分析(C)。[7]。:C=∫(fi-f0);fi,f0。C0～0.5,C,。C=0.5,,C=0,。,Cy=0.32;RCR=0.33;GCG=0.37。3C,G,,3。图1　级别面积分布集中度比较图Fig.1　Comparisonofareadistributionconcentrationofagriculturallandgradation3.1.2　级别面积频率分析,3,,(2)。2,;。(3),,。,。图2　无量纲化定级指数累积频率分布图Fig.2　Cumulativefrequencyofnon-dimensiongradingindex图3　农用地级别面积比率变化图Fig.3　Arearatechangeofagriculturallandgrade3.2　[7],。,、、,。,GIS,3,。,()。,G—R29.08%,71.69%;G—36.04%,83.45%;R—49.48%,94.52%。,R—2。4　Table4　ComparisonoftheelementsuperpositionrateofthesamegradeG—R/%/%G—/%/%R—/%/%110.5328.5738.7131.6818.1821.3628.3353.1137.2514.7127.1835.94311.1347.3922.3315.7038.9949.02425.7646.6333.7427.3345.7255.14533.0244.2734.4537.2751.0754.20633.2241.6737.6254.5556.1448.41729.8614.4041.1166.4254.0323.5429.0871.6936.0483.4549.4894.52279　6:3.3　,,,。,,、RG(4)。,,。R,R20.96,。。图4　级差收益分析比较图Fig.4　Comparisonoftheincomesofdifferentgradations3.4　、“、、”,。、,,。,,。,、RG、。,,,,。G(5)。,。。5　、Table5　Correlationcoefficientoftheclassificationandgradationindexesinthesameelement　　　0.1132710.1454840.4073870.1128110.6046390.7006010.5600340.4879730.3908934　　　,、。《》2,,。,,,。,,,,。100,,。,。,。,,,。,。,、、,,,。,,。,、,,、,;,。,,,。,,,。,,:,,,;。,,,。,,R,。G,。[　　　][1]　[S].(TD/T1004—2003):1-9.2802004　[2]　,　,.[J].,2002,18(5):93-95.[3]　[S].(TD/T1005—2003):1-13.[4]　.[J].,2000,(4):22-24.[5]　.[J].,2001,18(1):4-9.[6]　.[J].,2002,25(4):259-262.[7]　　,.——[J].(),2001,24(4):120-124.ComparisonandanalysisoffactormethodandmodifyingmethodforagriculturallandgradationMaRenhui1,LiXiaobo2,LiQiang2,RenXiangning1(1.CollegeofResourcesandEnvironmentSciences,HebeiNormalUniversity,Shijiazhuang050016,China;2.HebeiInstituteofGeographicalSciences,Shijiazhuang050011,China)Abstract:TakingHuiyangCityinGuangdongProvinceasanexampleforagriculturallandgradation,factormethodwascomparedwithmodifyingmethod,andtheprocessofgradation,thecharacteristicsandscopeofapplications,andtherationalityoftheresultsofthosetwogradationmethodswerediscussed.Bytheanalysisofthespacedistinction(difference),spacesuperposition(sameness),theincomesfromdifferentgradationsandthecorrelationofclassification,gradationandevaluation,thefeasibilitiesoffactormethodandmodifyingmethodwerestudied.Thegradationresultofmodifyingmethodisingoodagreementwiththelocalpracticalconditions.Keywords:agriculturallandgradation;factormethod;modifyingmethod281　6: