Archivio Istituzionale della RicercaThenitrogenandcarbondynamicsofwater-limitedecosystemsaresignificantlycontrolledbythesoilwatercontent,which inturndependsonsoilproperties,climate,andvegetationcharacteristics.Becauseofitsimpactonsoilaeration,microorganism environmentalstress,andiontransportwithintheporespaces,thesoilwatercontentcontrolstheactivityofmicrobialbiomass withimportanteffectsontheratesofdecomposition,mineralization,nitrification,anddenitrification.Mineralnitrogenismainly lostintheleachingandplantuptakeprocesses,whicharebothcontrolledbythesoilwatercontent.Toassessboththelong-term andtheshort-termimpactofsoilmoisturedynamicsonthesoilnitrogenandcarbonbudgets,modelsoftheNandCcyclesneed tooperateatdailyresolutions(orhigher).Ontheotherhand,long-termprojectionsrequireastochasticmodelingoftheclimate forcingtogeneratelongreplicatesoftheclimatesignalaswellastoassessthesystemresponsetoclimatechange.Thispaper reviewsamodelingframeworkdevelopedbytheauthors[Proc.R.Soc.Lond.A455(1999a)3789;Adv.Water.Res.26(2003) 45;Adv.WaterResour.26(2003)59;Sci.J.5(2003)781]fortheprocess-basedanalysisofsoilmoisture,nitrogen,andcarbon dynamics,presentingasynthesisofthemainresultsofthoseinvestigations.
Probabilistic modelling of carbon and nitrogen dynamics in water limited ecosystems / D'Odorico, P; Porporato, A; Laio, Francesco; Ridolfi, L; RODRIGUEZ ITURBE, I.. - In: ECOLOGICAL MODELLING. - ISSN 0304-3800. - 179:(2004), pp. 205-219. [10.1016/j.ecolmodel.2004.06.005]
Probabilistic modelling of carbon and nitrogen dynamics in water limited ecosystems
LAIO, FRANCESCO;
2004
Abstract
Thenitrogenandcarbondynamicsofwater-limitedecosystemsaresignificantlycontrolledbythesoilwatercontent,which inturndependsonsoilproperties,climate,andvegetationcharacteristics.Becauseofitsimpactonsoilaeration,microorganism environmentalstress,andiontransportwithintheporespaces,thesoilwatercontentcontrolstheactivityofmicrobialbiomass withimportanteffectsontheratesofdecomposition,mineralization,nitrification,anddenitrification.Mineralnitrogenismainly lostintheleachingandplantuptakeprocesses,whicharebothcontrolledbythesoilwatercontent.Toassessboththelong-term andtheshort-termimpactofsoilmoisturedynamicsonthesoilnitrogenandcarbonbudgets,modelsoftheNandCcyclesneed tooperateatdailyresolutions(orhigher).Ontheotherhand,long-termprojectionsrequireastochasticmodelingoftheclimate forcingtogeneratelongreplicatesoftheclimatesignalaswellastoassessthesystemresponsetoclimatechange.Thispaper reviewsamodelingframeworkdevelopedbytheauthors[Proc.R.Soc.Lond.A455(1999a)3789;Adv.Water.Res.26(2003) 45;Adv.WaterResour.26(2003)59;Sci.J.5(2003)781]fortheprocess-basedanalysisofsoilmoisture,nitrogen,andcarbon dynamics,presentingasynthesisofthemainresultsofthoseinvestigations.
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