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Hydrus-1D——20091212zhayuan87@126.com(ModelValidation)Hydrus-123Hydrus-1DHydrus-2DHydrus-3D1Hydrus-1DHydrus-1DHydrus-2DHydrus-3DHydrus-1DHydrus-2DHydrus-3DHydrus-1Dz—()(1)hKStzzθθ∂∂∂⎡⎤=--⎢⎥∂∂∂⎣⎦(1)θhS0options12345(1)(2),(5)(3)(4)1WaterFlow(SoluteTransport)(HeatTransport)(RootWaterUptake)(RootGrowth)(InverseSolution)62mmcmm:4(1)(2)(3)011(4)2mExamplecm43412003:5(1)(2)(3)(4)(5)Time-VariableBoundaryCondition200911Hydrus-1D-Hydrus-1D4T-levelInformation(.out)PrintatRegularTimeIntervalScreenOutDOSPrintFluxesforObservationNodesHitEnteratEndEnterDOSNo.ofPrintTimesdefaultdefaultlog56RichardsθhKhKθvanGenuchten-MualemHysteresis-7vanGenuchten-MualemαnrθsθsKll0.5Hydrus-1D12vanGenuchtenvanGenuchten8ConstantpressureheadConstantfluxAtmosphericboundaryconditionwithsurfacelayerAtmosphericboundaryconditionwithsurfacerunoffVariablePressureHeadVariablePressureHead/Flux/ConstantpressureheadConstantfluxVariablepressureheadVariablefluxFreedrainageDeepdrainageSeepagefaceHorizontaldrains90DeepDrainage10--condition6MaterialDistributionRootDistributionScalingFactorsInitialConditionsSubregionDistributionObservationNodes2.EditconditionEditNode1112CalculationOKDOS1ObservationPoints52BasicProfileInformationPrinttime43BoundaryWaterFluxsandPressureHeadsvertical4(SoilHydraulicProperties)--5(Run-TimeInformation)6(MassBalanceInformation)1.2Helpnextprevious3.Examples\Direct\.outC:\DocumentsandSettings\AllUsers\Documents\PC-Progress\HYDRUS-1D4.xx\Examples\Direct\1“”2Hydrus-1DHydrus-1DNeuralNetworkPrediction()1dρ(g/cm3)rθsθθα(cm-1)nsK(cm/h)1.510.0670.430.230.0152.124.371.510.0670.470.350.0141.53.52.100.0520.440.250.0291.6910.570cm30cmopenfile-(.h1d)1.-WaterFlow2.cm2211003.hours60480.0010.00010.154.550.333311224485.6.vanGenuchten-MualemNoHysteresis7.8.Maxh10000h09.20cmHydrus-1D(hours)(cm/hour)0.0012000.1012000.10201048010.0~70cm171~100cm20~70cm71~100cm11.0~70cm-160cm71~100cm-200cm0.17profileinformationNod_Inf.out20min1hour24hour48hour-100-80-60-40-2000.150.200.250.300.350.400.45Theta[-]ProfileInformation:WaterContentCum.BottomFlux-4-3-2-11.4917e-00705101520253035404550Time[hours]Cum.BottomFluxHydrus-1D11270cm100cm100cm3rθαnsθsK1/sdspθρρ==-p[]-,dρ33[]ML-,sρ33[]ML-0.980.979/sdspθρρ==-(2)sρ=2.69g/cm33220234sKpd=sKcm/s,20d0.0081cm3220234(1/)sdsKdρρ=-(3)1.1.51g/cm32.1.13.0.94.40cm0.930cm1.123sθsK70cmsθsK