Anintactalkalimarshsoil(MS)coreandanagriculturesoil(AS)corewerestudiedbythesimulatedtestinordertogetthecomparisonofthenutrientsretentioninalkaliMSandAS.ThesoilcoresextractedfromtheXianghaiWetland,westernJilinProvince,China,wereleachedwithsolutioncontainedcarbon,nitrogenandphosphorus.Thentheeffluentwaterfromtheoutletsofsoilcorewithdifferentdepthswasmeasured,includingchemicaloxygendemand(COD),totalphosphorus(TP),phosphate(PO3-4-P)andnitrogenexistedasnitrate(NO-3-N),nitrite(NO-2-N)andammonianitrogen(NH+4-N)andthetotalnitrogen(TN)intheeffluentwater.CODandTParedecreasedwiththedepth,thechangingtrendsofTN,NO-3-NandNH+4-NcontentsaresimilartoCODandTP,whereasNO-2-NinbothMSandASeffluenthavealittletransitionat40cmdepth.ItissimilarefficiencyofMStoASinsignificantlycuttingdownCOD,TP,PO3-4-P,TN,NO-3-N,NH+4-NandNO-2-Ninnutrientwater.ThefunctionofMSwouldbesameefficiencyofthenutrientsretentionastheAS.AlthoughtheSOMandpHhavesomeimpactsonnutrientsretentioninthesoil,theMSwithhighersoilorganicmatter(SOM)andpHhavethesameeffluentwaterastheASwiththelowerSOMandpHatthedepthof60cm,thebottomofthesoilcores.
