Vlaanderen.be

Onderzoeksoutput

Bidirectional ammonia exchange above a mixed coniferous forest

Onderzoeksoutput: Bijdrage aan tijdschriftA1: Web of Science-artikelOnderzoekpeer review

Standard

Bidirectional ammonia exchange above a mixed coniferous forest. / Neirynck, Johan; Ceulemans, R.

In: Environmental Pollution, Vol. 154, Nr. 3, 2008, blz. 424-438.

Onderzoeksoutput: Bijdrage aan tijdschriftA1: Web of Science-artikelOnderzoekpeer review

Harvard

APA

Author

Bibtex

@article{a5e44d1fcb0744079b425652b43655ff,
title = "Bidirectional ammonia exchange above a mixed coniferous forest",
abstract = "Two canopy compensation point models were used to study the bidirectional exchange of ammonia over a mixed coniferous forest subjected to high nitrogen deposition. The models were tested for 16 time series, average fluxes of which ranged between -270 and +1 ngm-2s-1. The static model consisted of a bidirectional stomatal flux and a unidirectional cuticular flux component. The dynamic model also allowed for desorption of ammonia from the leaf surface and took into account ammonia fluxes from precedent periods. The apoplastic ammonium/hydrogen ion ratio (Γ), which was derived to estimate the stomatal compensation point (Χs), amounted to 3300 in spring and 1375 during the summer/autumn. Empirical descriptions for cuticular resistances (Rw) in the static model, developed as a function of micrometeorological conditions and codeposition effects, failed to reproduce the measured fluxes. A better match with measurements was obtained using the dynamic model, which succeeded in simulating net-emission during the daytime.",
author = "Johan Neirynck and R Ceulemans",
note = "Publication Authorstring : Neirynck , J.; Ceulemans, R. Publication RefStringPartII : <i>Environmental Pollution 154(3)</i>: 424-438",
year = "2008",
doi = "10.1016/j.envpol.2007.11.030",
language = "English",
volume = "154",
pages = "424--438",
journal = "Environmental Pollution",
issn = "0269-7491",
publisher = "Elsevier Limited",
number = "3",

}

RIS

TY - JOUR

T1 - Bidirectional ammonia exchange above a mixed coniferous forest

AU - Neirynck, Johan

AU - Ceulemans, R

N1 - Publication Authorstring : Neirynck , J.; Ceulemans, R. Publication RefStringPartII : <i>Environmental Pollution 154(3)</i>: 424-438

PY - 2008

Y1 - 2008

N2 - Two canopy compensation point models were used to study the bidirectional exchange of ammonia over a mixed coniferous forest subjected to high nitrogen deposition. The models were tested for 16 time series, average fluxes of which ranged between -270 and +1 ngm-2s-1. The static model consisted of a bidirectional stomatal flux and a unidirectional cuticular flux component. The dynamic model also allowed for desorption of ammonia from the leaf surface and took into account ammonia fluxes from precedent periods. The apoplastic ammonium/hydrogen ion ratio (Γ), which was derived to estimate the stomatal compensation point (Χs), amounted to 3300 in spring and 1375 during the summer/autumn. Empirical descriptions for cuticular resistances (Rw) in the static model, developed as a function of micrometeorological conditions and codeposition effects, failed to reproduce the measured fluxes. A better match with measurements was obtained using the dynamic model, which succeeded in simulating net-emission during the daytime.

AB - Two canopy compensation point models were used to study the bidirectional exchange of ammonia over a mixed coniferous forest subjected to high nitrogen deposition. The models were tested for 16 time series, average fluxes of which ranged between -270 and +1 ngm-2s-1. The static model consisted of a bidirectional stomatal flux and a unidirectional cuticular flux component. The dynamic model also allowed for desorption of ammonia from the leaf surface and took into account ammonia fluxes from precedent periods. The apoplastic ammonium/hydrogen ion ratio (Γ), which was derived to estimate the stomatal compensation point (Χs), amounted to 3300 in spring and 1375 during the summer/autumn. Empirical descriptions for cuticular resistances (Rw) in the static model, developed as a function of micrometeorological conditions and codeposition effects, failed to reproduce the measured fluxes. A better match with measurements was obtained using the dynamic model, which succeeded in simulating net-emission during the daytime.

U2 - 10.1016/j.envpol.2007.11.030

DO - 10.1016/j.envpol.2007.11.030

M3 - A1: Web of Science-article

VL - 154

SP - 424

EP - 438

JO - Environmental Pollution

T2 - Environmental Pollution

JF - Environmental Pollution

SN - 0269-7491

IS - 3

ER -

Onderzoeksoutput (gerelateerd via auteurs)
Winkelwagen
Toevoegen aan winkelwagen Opgeslagen in winkelwagen

Kopieer de tekst uit dit veld...

Documenten

Documenten

  • Neirynck_Ceulemans_2008_EnvironPollut

    !!Final published version, 1 MB, PDF-document

DOI

Relaties
Bekijk grafiek van relaties