黄土区植被减沙效益评价决策支持系统

20046SHUILIXUEBAO610559-9350(2004)06-0086-061112(1.7121002.710049)TP311.52S157.1A[1][2,3][45][615]1(Decision-MakingSupportSystemDSS)DSS()()3[7]1DSS2002-12-03973(2002CB111502)(90102012)(1964-)20046SHUILIXUEBAO62DSS(MIS)DSS22.173(30010000km2)1/5082001(91746)[6]2.1.1(1)Y=3200.1-3628.6X2-10976X3+2130X4+6305.7X5-30712X6(n=4,F=3.5**,P0.01)(2)Y=4042.0-18022X1-506.2X3+6701.0X4+2539.5X5(n=25,F=2.9786**,P0.05)Y()(tkm-2a-1)XiX1X2X3X4X5X62.1.2(1)Y=4661.5-32166X2-13273.4X16+25535.8X26-14427X29-8148X30+9628.9X31+42981X32-17711X33+10679.6X34+33869.5X35-19612X36-48139X42(n=46F=7.50**,P0.001)Y()(tkm-2a-1)Xi(2)(2)20046SHUILIXUEBAO63Y=213.5+31391.6X13-11536X16+11033X18+28870.3X20-25106X22+61091.8X25-31068X26+40916.5X29+12600.2X31(n=25,F=7.28**,P0.05)Y()(tkm-2a-1),Xi(2)754552.25[type][hillproportionl][dongaproportionl][hillproportion2][dongaproportion2]2.2.1[type]a.(1)typevarchar(1)123456789101112groupvarchar(2)(2)[group]idintkeygroupnamevarchar(60)b.(0)(1)valleyvarchar(50)areavarchar(50)groupvarchar(2)(2)[group]20046SHUILIXUEBAO64idinkeygroupnamevarchar(60)groupbflnumeric(5)2.2.2232.33Y(tkm-2a-1)221.X1X2X32.X4X5X6---3.X7X8X94.X465.X10X11X12X13X14X15X16X186.X17X197.X20X21X22X23X248.X25X26X27X289.X29X30X31X32X33X34X35X3610.X3711.X4512.20046SHUILIXUEBAO653()0.01350.00860.32680.65110.02410.24880.17680.05400.04800.04200.18320.64680.00240.21690.78070.02050.41350.5372---------0.00250.01250.36220.62880.07880.02450.20550.67680.00850.39330.59260.01200.00360.13200.85244(3)4.1InternetWeb(2)4.2Web20046SHUILIXUEBAO6634.35VisualC++ATL(ActiveTemplateLibrary)Windows2000Server620046SHUILIXUEBAO67[1].[M].1998.[2].[M].1996.[3],.[J].1991(14)96-103.[4].[M].1998.[5].[J].200024(4)608-612.[6].[J].200020(7)44-47.[7].[M].2000.Decision-makingsupportsystemforevaluatingthebenefitofsoilerosionreductionduetovegetationSHANGGUANZhou-ping1,ZHANGAn-bang1,LIUGuo-bin1,LIUXiao-dong2(1.InstituteofSoilandWaterConservation,ChineseAcademyofScience,Yangling712100,China;2.XianJiaotongUniversity,Xian710049,China)Abstract:AccordingtothedataobtainedfromsmallwatershedsinLoessPlateauastatisticalmodelforevaluatingthebenefitofsoilerosionreductionduetovegetationisproposedandthedatabasefordistributionofvegetationresourcesisestablished.Onthisbasis,thedecision-makingsupportsystem(DSS)forevaluatingthisbenefitinthecircumstanceofWebisestablished.Thesystemprovidesthedecisionmakerwithsuggestiononsuitablemeasureforsoilerosionreductionandtheprobablebenefitaccordingtotheexistingsituation.ItgivestheguidanceforconstructionofecologicalenvironmentandtheprincipleofreasonablevegetationplanninginLoessPlateau.Keywords:benefitofsoilerosionreduction;vegetation;decision-makingsupportsystem;LoessPlateau