氨氮在包气带中迁移的HYDRUS-1D预测模型

4242016410WaterPowerVol.42No.4HYDＲUS-1D030024HYDＲUS-1D。HYDＲUS-1DPredictionoftheMigrationofAmmoniaNitrogeninVadoseZonebyUsingHYDＲUS-1DModelCHENPei，ZHANGYongbo，ZHENGXiuqing，ZHAOXuehua(CollegeofWaterConservancyScienceandEngineering，TaiyuanUniversityofTechnology，Taiyuan030024，Shanxi，China)Abstract:ThesewagetankareaofapowerplantinYuci，Shanxiisselectedasthestudycase，andtheHYDＲUS-1Dsoftwareisusedtobuildthemodelaboutthetransportofammonianitrogeninvadosezone．Theammonianitrogenisthetypicalpollutantofsewagetankleakage．Theverticaltransportofammonianitrogeninthevadosezoneissimulatedbythemodel，andthetimeandconcentrationwhentheammonianitrogenarrivestoundergroundwaterthroughthevadosezonearecalculated，whichprovidethestartingtimeandinitialconcentrationforthenumericalsimulationofammonianitrogentransportinundergroundwater．KeyWords:undergroundwater;solutetransport;ammonianitrogen;vadosezone;HYDＲUS-1DX523A0559-9342201604-0010-032015-12-06415722211989—．。。。。HYDＲUS-1D、、、、1-3、、。HYDＲUS-1D424-WaterPowerVol.42No.411。15.0km300m1400m900m1000m。、、、。Qal4Qal3、、。。390～6.5m6.5～16.9m16.9～20.5m20.5～28m。20.5m16.9m3.6m。2.1。。。2.1.1。。。2.1.2《》3m。QQ=K×IKI。0.48cm/d6.0cm/d。KK=∑ni=1KiMi∑ni=1Mi1KiiMii。K1.677×10－5cm/s。I0.146。0.0021m/d。2.2HYDＲUS-1D。2.2.1、、HYDＲUS-1DＲichards5-6。θt=xKhx+cos()[]α－S2hθtSαα=0KhKhx=KsxKrhx。KsKr。HYDＲUS-1D5vanGenuchten-Mualemθh、Kh7。θh=θr+θs－θr_1+αh[]nmh＜0m=1－1nn＞1θsh≥{0Kh=KsSle1－1－S1/m()e[]n2Se=θ－θrθs－θr3θrθsα、nl。2.2.2HYDＲUS-1D-8。θct+st=xθDc()x－qcx－Φ4cs2016412WaterPowerVol.42No.41/cmθr/cm3·cm－3θs/cm3·cm－3α/cm－1nKs/cm·d－1l0～16900.070.360.0051.090.480.51690～20500.0340.460.0161.3760.52/cmρ/g·cm－3DL/cmDw/cm2·d－1Kdμwμs0～16902.7216916.70.050.0050.0051690～20502.703616.70.030.0010.001DqΦ。2.32.3.1。10。、1。0.21cm/d－100cm5-6。。2.3.22。30mg/L30mg/L。0。2.3.3HYDＲUS-1DSoilProfile-GraphicalEditor。0～1690cm1690～2050cm20510cm2050m。6N1～N5200、600、1000、1500cm2050cm。1。3.1HYDＲUS-1DHYDＲUS-1D30cm。24h24h。2。2。HYDＲUS-1D。1cm23.2302016430WaterPowerVol.42No.43。23。。、6。1．J．2003144133-137．2．J．20034381127-1129．3．J．20081112-14．4．D．2006．5．M．1997．6．J．2013244497-503．櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓櫓122mN112d0.03mg/cm3。6mN285d0.03mg/cm3。10mN3223d0.02917mg/cm3。15mN4410d0.02014mg/cm3。20.5mN5702d0.00236mg/cm3。53。3-HYDＲUS-1D702d2000d2.36mg/L。、。。1ZENGWenzhi，CUChi，WUJingwei．Soilsaltleachingunderdiffer-entirrigationregimes:HYDＲUS-1DmodellingandanalysisJ．Jour-nalofAridLand20146144-58．2TAFTEHA，SEPASKHAHAＲ．ApplicationofHYDＲUS-1DmodelforsimulatingwaterandnitrateleachingfromcontinuousandalternatefurrowirrigatedrapeseedandmaizefieldsJ．AgriculturalWaterManagement20121131019-29．3JIANGShuang，PANGLiping，GＲAEMED．Buchan．Modelingwa-terflowandbacterialtransportinundisturbedlysimetersunderirriga-tionsofdairyshedeffluentandwaterusingHYDＲUS-1DJ．WaterＲesearch20094441050-1061．4．M．2010．5．Hydrus-1DJ．2013334639-647．6．HYDＲUS-1DJ．20148125293-5298．7．HYDＲUS-1D/2DJ．2011393622390-22393．8LIYong，IMNEKJ，JIANGLongfei，etal．Evaluationofwatermovementandwaterlossesinadirect-seeded-ricefieldexperimentu-singHydrus-1DJ．AgriculturalWaterManagement2014142438-46．