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Statements

Subject Item
n2:RIV%2F60076658%3A12310%2F12%3A43883571%21RIV13-MSM-12310___
rdf:type
n6:Vysledek skos:Concept
dcterms:description
We developed and tested a regression model, interpolating long-term sequences of observed atmospheric deposition of SO42-, NO3-, and NH4+ in the upper Vltava river catchment (Czech Republic) to its three sub-regions, differing in elevation and forest cover. The model provides more realistic estimates of wet and total S and N depositions and their inter-annual variability in the study catchment than the available European deposition sequences, especially in the case of wet S deposition prior to 1997. In the model, ion fluxes are calculated as the product of the precipitation volume and ion concentrations, which both are derived as empirical functions of elevation and time. The long-term sequences of ion concentrations are based on measured deposition data at 19 stations and their relationships with central European emission trends of SO2, NOx, and NH3 for years with no measurements. Exponential relationships between elevation and precipitation volume (positive) and elevation and ion concentrations (negative) are used to convert the long-term sequences of precipitation and concentrations into values for individual elevations. Throughfall fluxes (TF) of S and N in the forest areas are calculated from their fluxes in precipitation (PF), using long-term sequences of TF:PF ratios, based on measured fluxes and the S and N emission trends. The calculated fluxes of S and reactive nitrogen (NO3-N and NH4-N) explain 80% and 56% of the variability in their measured fluxes, respectively, along an elevation gradient from 275 to 1334 m. (C) 2012 Published by Elsevier Ltd. We developed and tested a regression model, interpolating long-term sequences of observed atmospheric deposition of SO42-, NO3-, and NH4+ in the upper Vltava river catchment (Czech Republic) to its three sub-regions, differing in elevation and forest cover. The model provides more realistic estimates of wet and total S and N depositions and their inter-annual variability in the study catchment than the available European deposition sequences, especially in the case of wet S deposition prior to 1997. In the model, ion fluxes are calculated as the product of the precipitation volume and ion concentrations, which both are derived as empirical functions of elevation and time. The long-term sequences of ion concentrations are based on measured deposition data at 19 stations and their relationships with central European emission trends of SO2, NOx, and NH3 for years with no measurements. Exponential relationships between elevation and precipitation volume (positive) and elevation and ion concentrations (negative) are used to convert the long-term sequences of precipitation and concentrations into values for individual elevations. Throughfall fluxes (TF) of S and N in the forest areas are calculated from their fluxes in precipitation (PF), using long-term sequences of TF:PF ratios, based on measured fluxes and the S and N emission trends. The calculated fluxes of S and reactive nitrogen (NO3-N and NH4-N) explain 80% and 56% of the variability in their measured fluxes, respectively, along an elevation gradient from 275 to 1334 m. (C) 2012 Published by Elsevier Ltd.
dcterms:title
An elevation-based regional model for interpolating sulphur and nitrogen deposition An elevation-based regional model for interpolating sulphur and nitrogen deposition
skos:prefLabel
An elevation-based regional model for interpolating sulphur and nitrogen deposition An elevation-based regional model for interpolating sulphur and nitrogen deposition
skos:notation
RIV/60076658:12310/12:43883571!RIV13-MSM-12310___
n6:predkladatel
n18:orjk%3A12310
n3:aktivita
n7:R n7:P n7:I n7:V
n3:aktivity
I, P(GA526/09/0567), R, V
n3:cisloPeriodika
duben
n3:dodaniDat
n13:2013
n3:domaciTvurceVysledku
n5:1269623 n5:4286731
n3:druhVysledku
n20:J
n3:duvernostUdaju
n11:S
n3:entitaPredkladatele
n10:predkladatel
n3:idSjednocenehoVysledku
121940
n3:idVysledku
RIV/60076658:12310/12:43883571
n3:jazykVysledku
n19:eng
n3:klicovaSlova
Vltava river; Nitrogen; Sulphur; Atmospheric deposition; CHEMISTRY; ECOSYSTEMS; TRENDS; ACIDIFICATION; EUROPE; ACID DEPOSITION; BOHEMIAN FOREST; DIOXIDE EMISSIONS; THROUGHFALL MEASUREMENTS; ATMOSPHERIC DEPOSITION
n3:klicoveSlovo
n4:CHEMISTRY n4:THROUGHFALL%20MEASUREMENTS n4:BOHEMIAN%20FOREST n4:TRENDS n4:ECOSYSTEMS n4:EUROPE n4:Atmospheric%20deposition n4:ACID%20DEPOSITION n4:DIOXIDE%20EMISSIONS n4:ACIDIFICATION n4:Sulphur n4:Nitrogen n4:ATMOSPHERIC%20DEPOSITION n4:Vltava%20river
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[B8886274628F]
n3:nazevZdroje
ATMOSPHERIC ENVIRONMENT
n3:obor
n15:DI
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
5
n3:projekt
n12:GA526%2F09%2F0567
n3:rokUplatneniVysledku
n13:2012
n3:svazekPeriodika
50
n3:tvurceVysledku
Hejzlar, Josef Oulehle, Filip Kopáček, Jiří Volkova, Alena Posch, Maximilian
n3:wos
000301561100032
s:issn
1352-2310
s:numberOfPages
10
n16:doi
10.1016/j.atmosenv.2011.12.017
n17:organizacniJednotka
12310