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Statements

Subject Item
n2:RIV%2F00025798%3A_____%2F14%3A00000021%21RIV15-MSM-00025798
rdf:type
n4:Vysledek skos:Concept
rdfs:seeAlso
http://www.sciencedirect.com/science/article/pii/S026974911300448X
dcterms:description
Increases in dissolved organic carbon (DOC) fluxes may relate to changes in sulphur and nitrogen pollution. We integrated existing models of vegetation growth and soil organic matter turnover, acidebase dynamics, and organic matter mobility, to form the 'MADOC’ model. After calibrating parameters governing interactions between pH and DOC dissolution using control treatments on two field experiments, MADOC reproduced responses of pH and DOC to additions of acidifying and alkalising solutions. Long-term trends in a range of acid waters were also reproduced. The model suggests that the sustained nature of observed DOC increases can best be explained by a continuously replenishing potentiallydissolved carbon pool, rather than dissolution of a large accumulated store. The simulations informed the development of hypotheses that: DOC increase is related to plant productivity increase as well as to pH change; DOC increases due to nitrogen pollution will become evident, and be sustained, after soil pH has stabilised. Increases in dissolved organic carbon (DOC) fluxes may relate to changes in sulphur and nitrogen pollution. We integrated existing models of vegetation growth and soil organic matter turnover, acidebase dynamics, and organic matter mobility, to form the 'MADOC’ model. After calibrating parameters governing interactions between pH and DOC dissolution using control treatments on two field experiments, MADOC reproduced responses of pH and DOC to additions of acidifying and alkalising solutions. Long-term trends in a range of acid waters were also reproduced. The model suggests that the sustained nature of observed DOC increases can best be explained by a continuously replenishing potentiallydissolved carbon pool, rather than dissolution of a large accumulated store. The simulations informed the development of hypotheses that: DOC increase is related to plant productivity increase as well as to pH change; DOC increases due to nitrogen pollution will become evident, and be sustained, after soil pH has stabilised.
dcterms:title
Predicting nitrogen and acidity effects on long-term dynamics of dissolved organic matter Predicting nitrogen and acidity effects on long-term dynamics of dissolved organic matter
skos:prefLabel
Predicting nitrogen and acidity effects on long-term dynamics of dissolved organic matter Predicting nitrogen and acidity effects on long-term dynamics of dissolved organic matter
skos:notation
RIV/00025798:_____/14:00000021!RIV15-MSM-00025798
n3:aktivita
n10:V
n3:aktivity
V
n3:cisloPeriodika
January
n3:dodaniDat
n6:2015
n3:domaciTvurceVysledku
n17:8359350
n3:druhVysledku
n18:J
n3:duvernostUdaju
n9:S
n3:entitaPredkladatele
n8:predkladatel
n3:idSjednocenehoVysledku
38735
n3:idVysledku
RIV/00025798:_____/14:00000021
n3:jazykVysledku
n14:eng
n3:klicovaSlova
DOC, Model, Carbon, Soil, Recovery, Acidification, pH
n3:klicoveSlovo
n11:Carbon n11:Recovery n11:Model n11:Soil n11:pH n11:DOC n11:Acidification
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[D28A3A9816B4]
n3:nazevZdroje
Environmental Pollution
n3:obor
n13:DF
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
9
n3:rokUplatneniVysledku
n6:2014
n3:svazekPeriodika
184
n3:tvurceVysledku
Rowe, Edward Cooper, David Hall, Jane Tipping, Edward Evans, Christopher Posch, Maximilian Jones, Timothy Oulehle, Filip Burden, Annette
n3:wos
000329419200033
s:issn
0269-7491
s:numberOfPages
12
n15:doi
10.1016/j.envpol.2013.08.023