Soil Aggregate Stability(10)

土壤团聚体的经典文章

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claysMoreover,previousinvestigationsconcludedthatthedispersion(AroracouldberelatedtothedispersionofthecorrespondingreferenceofclayssoilandflocculationForsterandColeman,referencevalue(1990)(FV)reported,1979;Yousaf,ofsoilhowever,1983).Rengasamy(1983)andGoldbergclaysuspensionsthatthecolloidalweregreaterstabilityandthetherefore,claymatter,(MillerFenotsuspensions.Extrapolationfromreferenceclaythanresultsthoseis,ofandpossibleAloxides,andadditionalfactorssuchasthecontentoforganicbeInconclusion,etal.,1990;theFrenkeloreffectofetCaCO3affectthecolloidalstabilityofsoilsclayal.,1992;mineralogyKretzschmaronaggregateetal.,1993).

tiesambivalent.However,theinteractionofthisfactorwithotherstabilitysoilseemstoForstermaytests(1990)beresponsibleandfortheapparentlycontradictoryresults.Goldbergproper-andate(micro-aggregateAmézketastabilityandtests)Aragüésusingreference(1995a)reportedclaysthatdispersional.,Claytodescribecontentthearenotappropri-hasflocculation-dispersionbehaviorofsoilclays.

However,1992a;aloweraggregateTernanBrubakerbeenetstability.al.et(1996)al.,also1992;consideredasacementingagent(ShainbergetfoundCurtinthatetsoilsal.,1994a;withahigherLeBissonnais,claycontent1996a).hadCaCO3andGypsum

calcareousThebeneficialal.soilshaseffectbeenofreportedcalcitedissolutiononthestructuralstabilityofand(1981a,preventSharmab),(1986),YadavandwhoGirdharconcluded(1981),byAlperovitchetal.(1981),ShainbergetthatBen-Hurthereleasedetal.(1985),CaandMinhasofclaydispersion.Onthecontrary,soilinfiltrationratewasisindependentenoughtosodicitythepresenceofcalciteorgypsuminthesoil,dependingbasicallyontheappliedonparticlesaggregatetoofthethesoil.soilsurfaceandontheelectricalconcentrationofthewaterstabilityLeBissonnais(1996a)concludedthattheeffectofCaCO3clayVerymustandbeonpresenttheclayprobablyandcontent.dependsonthesizedistributionofCaCO3CaCOForabeneficialaggregatingeffectsufficient3particlesmustforwell-crystallizedtheirfinesolubilityparticlesoftosoilbecalcitehigherhavebesmallerthanthesizeofsilt.thansufficientlythetheoreticallyhighsurface-freepredictedvaluesenergiesenrichingReclaimingtionandtoirrigationsodiccalciteacontinuouswatersoils(InskeepsupplywithwithCOnaturallyandBloom,occurring1986).

forCaCO3isenhancedbyofCa2,which2+thatleadsremovestoaNaconstant+limedissolu-sitesofEfficiency(Nadleretfromtheexchangeofal.,reclamation1996a).

ofsoilswithofthethepercolatingwaterfilmaroundsolution.theIncreasinggypsumparticles,flowgypsumrates(2)(1)dependsreducesreducesontheflowratethethecontactthicknesstime

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