About: Modelling soil nitrogen: The MAGIC model with nitrogen retention linked to carbon turnover using decomposer dynamics

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About: Modelling soil nitrogen: The MAGIC model with nitrogen retention linked to carbon turnover using decomposer dynamics Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We present a new formulation of the acidification model MAGIC that uses decomposer dynamics to link nitrogen (N) cycling to carbon (C) turnover in soils. The new model is evaluated by application to 15-30 years of water chemistry data at three coniferous-forested sites in the Czech Republic where deposition of sulphur (S) and N have decreased by >80% and 40%, respectively. Sulphate concentrations in waters have declined commensurately with S deposition, but nitrate concentrations have shown much larger decreases relative to N deposition. This behaviour is inconsistent with most conceptual models of N saturation, and with earlier versions of MAGIC which assume N retention to be a first-order function of N deposition and/or controlled by the soil C/N ratio. In comparison with earlier versions, the new formulation more correctly simulates observed short-term changes in nitrate leaching, as well as long-term retention of N in soils. We present a new formulation of the acidification model MAGIC that uses decomposer dynamics to link nitrogen (N) cycling to carbon (C) turnover in soils. The new model is evaluated by application to 15-30 years of water chemistry data at three coniferous-forested sites in the Czech Republic where deposition of sulphur (S) and N have decreased by >80% and 40%, respectively. Sulphate concentrations in waters have declined commensurately with S deposition, but nitrate concentrations have shown much larger decreases relative to N deposition. This behaviour is inconsistent with most conceptual models of N saturation, and with earlier versions of MAGIC which assume N retention to be a first-order function of N deposition and/or controlled by the soil C/N ratio. In comparison with earlier versions, the new formulation more correctly simulates observed short-term changes in nitrate leaching, as well as long-term retention of N in soils. (en)
Title	Modelling soil nitrogen: The MAGIC model with nitrogen retention linked to carbon turnover using decomposer dynamics Modelling soil nitrogen: The MAGIC model with nitrogen retention linked to carbon turnover using decomposer dynamics (en)
skos:prefLabel	Modelling soil nitrogen: The MAGIC model with nitrogen retention linked to carbon turnover using decomposer dynamics Modelling soil nitrogen: The MAGIC model with nitrogen retention linked to carbon turnover using decomposer dynamics (en)
skos:notation	RIV/60077344:_____/12:00377851!RIV13-AV0-60077344
http://linked.open...avai/riv/aktivita	I R
http://linked.open...avai/riv/aktivity	I, R
http://linked.open...iv/cisloPeriodika	June
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Kopáček, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Biologické centrum AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	151149
http://linked.open...ai/riv/idVysledku	RIV/60077344:_____/12:00377851
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	nitrogen saturation; leaching; acidification; Norway spruce; Bohemian Forest; Slavkov Forest; Ore Mountains; Erzgebirge (en)
http://linked.open.../riv/klicoveSlovo	Bohemian Forest Ore Mountains nitrogen saturation Norway spruce acidification Slavkov Forest Erzgebirge leaching
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[A23F746770DB]
http://linked.open...i/riv/nazevZdroje	Environmental Pollution
http://linked.open...in/vavai/riv/obor	DA
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	165
http://linked.open...iv/tvurceVysledku	Kopáček, Jiří Krám, P. Evans, C. D. Hruška, J. Oulehle, F. Cosby, B. J. Moldan, F. Wright, R. F.
http://linked.open...ain/vavai/riv/wos	000303629000017
issn	0269-7491
number of pages	9 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.envpol.2012.02.021

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