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13.3.120.6m1.0m,1m,0.6m3.2(m3/ha)3.2.1.MM=m1+m2+e-P(3)m1m3/ha;m2;e;Pm1m2:)(10001θθγ−=fHm(4):H--,m;f--(%);0--(%)KSSHma−=02100γ5:S0SaKkg/m3KS04K2.0-2.5m34K5S0K53.2.2.(1).Mm1(3)(4)m2m2=100Hf(S0/Sa-1)(6)(3),(4)(6)M=100H(fS0/Sa-0)+e-P(7):H--,m;f(%);0(%);S0Sa;4(2).m1C0S0/fdmdCHCdmfγθ−=(8)(Karpov,1955):dmHdCCmfCCa∫∫=−20011γθ(9)m2=100Hfln(C0/Ca)=100Hfln(S0/Sa)(10),Volobuev(10)m2=10000lgS0/Sa(11)Volobuev1111ClSo4-ClSo4-NaSo4Na,Ca2.702.803.003.301.221.321.421.780.921.021.121.480.620.720.821.18(3).Hoffman(1980)(6):D/Ds=kC0/Ca(12):D--(m);Ds--,(m);C0--,(g/l);Ca--,(g/l);k--0.1()0.3()D/DsHoffman(1980)6Reeve(1957):D/Ds=0.2C0/Ca+0.15(13)(13):5D/Ds=0.2(ECe)0/(ECe)a+0.15(13)(ECe)0ECe;(ECe)aECeD/Ds76C/C0AB7(ECe)i(ECe)f3.2.3.40FickJdDs6zCDJsd∂∂−=14C--z--JhzCDJhh∂∂−=(15)Dh--Dh=vVJD:[]zCDzCvDDJhsD∂∂−=∂∂+−=)(16D=Ds+DhJc=qC(17)qv=q/JqCzCDJ+∂∂−=18zJtC∂∂−=∂∂)(θ191819zqCzCDztC∂∂−∂∂∂∂=∂∂)()()(θ20=S,(20)zCvzCDtC∂∂−∂∂=∂∂22217sDDθ=C=C0,C1,q,vzC8++−−−=)2()2()(21),(100tDvtzerfcetDvtzerfcCCCtzCDvz(22)z,C9-27t,q=vt,m2tCCvzzCDztCimmimm∂∂−∂∂−∂∂∂∂=∂∂θθ)()(23)(imimimCCtC−=∂∂αθ24---C---Cim---im---imm---m=-im;vm---C0imvmDC12324Cs,sdasCKCKtC−=∂∂(25)KaKd0=∂∂tCs25:Cs=Ka/KdC=KpC(26)s,1-s,tCKtCsspsss∂∂−=∂∂−θθθθ1127921zCvzCDtCKssp∂∂−∂∂=∂∂−+22)11(θθ(28)zCvzCDtCRd∂∂−∂∂=∂∂2229zCvzCDtC∂∂−∂∂=∂∂''22(29)sspdKRθθ−+=11;;/'dRDD=dRvv/'=292122Rd1,'DDvv'2328
本文标题:盐渍化土壤的冲洗改良与排水
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