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Fluxes of oxidised and reduced nitrogen above a mixed coniferous forest exposed to various nitrogen emission sources

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Fluxes of oxidised and reduced nitrogen above a mixed coniferous forest exposed to various nitrogen emission sources. / Neirynck, Johan; Kowalski, A; Carrara, A; Genouw, Gerrit; Berghmans, P; Ceulemans, R.

In: Environmental Pollution, Vol. 149, No. 1, 2007, p. 31-43.

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@article{f59896f182fc4a00b5de92980a0df013,
title = "Fluxes of oxidised and reduced nitrogen above a mixed coniferous forest exposed to various nitrogen emission sources",
abstract = "Concentrations of nitrogen gases (NH3, NO2, NO, HONO and HNO3) and particles (pNH4 and pNO3) were measured over a mixed coniferous forest impacted by high nitrogen loads. Nitrogen dioxide (NO2) represented the main nitrogen form, followed by nitric oxide (NO) and ammonia (NH3). A combination of gradient method (NH3 and NOx) and resistance modelling techniques (HNO3, HONO, pNH4 and pNO3) was used to calculate dry deposition of nitrogen compounds. Net flux of NH3 amounted to -64 ng N m-2 s-1 over the measuring period. Net fluxes of NOx were upward (8.5 ng N m-2 s-1) with highest emission in the morning. Fluxes of other gases or aerosols substantially contributed to dry deposition. Total nitrogen deposition was estimated at -48 kg N ha-1 yr-1 and consisted for almost 80{\%} of NHx. Comparison of throughfall nitrogen with total deposition suggested substantial uptake of reduced N (-15 kg N ha-1 yr-1) within the canopy.Reduced nitrogen was found to be the main contributor to total deposition which was predominantly governed by dry deposition.",
author = "Johan Neirynck and A Kowalski and A Carrara and Gerrit Genouw and P Berghmans and R Ceulemans",
note = "Publication Authorstring : Neirynck , J.; Kowalski, A.; Carrara, A.; Genouw, G.; Berghmans, P.; Ceulemans, R. Publication RefStringPartII : <i>Environmental Pollution 149(1)</i>: 31-43. <a href={"}http://dx.doi.org/10.1016/j.envpol.2006.12.029{"} target={"}_blank{"}>dx.doi.org/10.1016/j.envpol.2006.12.029</a>",
year = "2007",
doi = "10.1016/j.envpol.2006.12.029",
language = "English",
volume = "149",
pages = "31--43",
journal = "Environmental Pollution",
issn = "0269-7491",
publisher = "Elsevier Limited",
number = "1",

}

RIS

TY - JOUR

T1 - Fluxes of oxidised and reduced nitrogen above a mixed coniferous forest exposed to various nitrogen emission sources

AU - Neirynck, Johan

AU - Kowalski, A

AU - Carrara, A

AU - Genouw, Gerrit

AU - Berghmans, P

AU - Ceulemans, R

N1 - Publication Authorstring : Neirynck , J.; Kowalski, A.; Carrara, A.; Genouw, G.; Berghmans, P.; Ceulemans, R. Publication RefStringPartII : <i>Environmental Pollution 149(1)</i>: 31-43. <a href="http://dx.doi.org/10.1016/j.envpol.2006.12.029" target="_blank">dx.doi.org/10.1016/j.envpol.2006.12.029</a>

PY - 2007

Y1 - 2007

N2 - Concentrations of nitrogen gases (NH3, NO2, NO, HONO and HNO3) and particles (pNH4 and pNO3) were measured over a mixed coniferous forest impacted by high nitrogen loads. Nitrogen dioxide (NO2) represented the main nitrogen form, followed by nitric oxide (NO) and ammonia (NH3). A combination of gradient method (NH3 and NOx) and resistance modelling techniques (HNO3, HONO, pNH4 and pNO3) was used to calculate dry deposition of nitrogen compounds. Net flux of NH3 amounted to -64 ng N m-2 s-1 over the measuring period. Net fluxes of NOx were upward (8.5 ng N m-2 s-1) with highest emission in the morning. Fluxes of other gases or aerosols substantially contributed to dry deposition. Total nitrogen deposition was estimated at -48 kg N ha-1 yr-1 and consisted for almost 80% of NHx. Comparison of throughfall nitrogen with total deposition suggested substantial uptake of reduced N (-15 kg N ha-1 yr-1) within the canopy.Reduced nitrogen was found to be the main contributor to total deposition which was predominantly governed by dry deposition.

AB - Concentrations of nitrogen gases (NH3, NO2, NO, HONO and HNO3) and particles (pNH4 and pNO3) were measured over a mixed coniferous forest impacted by high nitrogen loads. Nitrogen dioxide (NO2) represented the main nitrogen form, followed by nitric oxide (NO) and ammonia (NH3). A combination of gradient method (NH3 and NOx) and resistance modelling techniques (HNO3, HONO, pNH4 and pNO3) was used to calculate dry deposition of nitrogen compounds. Net flux of NH3 amounted to -64 ng N m-2 s-1 over the measuring period. Net fluxes of NOx were upward (8.5 ng N m-2 s-1) with highest emission in the morning. Fluxes of other gases or aerosols substantially contributed to dry deposition. Total nitrogen deposition was estimated at -48 kg N ha-1 yr-1 and consisted for almost 80% of NHx. Comparison of throughfall nitrogen with total deposition suggested substantial uptake of reduced N (-15 kg N ha-1 yr-1) within the canopy.Reduced nitrogen was found to be the main contributor to total deposition which was predominantly governed by dry deposition.

U2 - 10.1016/j.envpol.2006.12.029

DO - 10.1016/j.envpol.2006.12.029

M3 - A1: Web of Science-article

VL - 149

SP - 31

EP - 43

JO - Environmental Pollution

JF - Environmental Pollution

SN - 0269-7491

IS - 1

ER -

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