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Dinitrogen and nitrous oxide exchanges from an undrained monolith fen: short-term responses following nitrate addition

Dries Roobroeck UGent, Klaus Butterbach-Bahl, N Brüggemann and Pascal Boeckx UGent (2010) EUROPEAN JOURNAL OF SOIL SCIENCE. 61(5). p.662-670
abstract
Gaseous nitrogen exchanges from undrained peat soils and the effect of external nitrate input are poorly understood. This paper reports net N-2, and N2O exchanges as well as the short-term responses to nitrate addition from contrasting tussock and hollow soil habitats in an undrained monolith fen ecosystem located in northeast Poland. Gaseous N exchange rates were quantified by means of a He substitution technique. The net N-2 production in hollows (2.53 mg N m(-2) hour(-1)) was significantly higher than in tussocks (1.04 mg N m(-2) hour(-1)). Hollows also constituted a marked N2O sink (-3.04 mu g N m(-2) hour(-1)), while tussocks were a source for atmospheric N2O (2.08 mu g N m(-2) hour(-1)). Following amendment by NO3-, at a rate similar to atmospheric NO3- deposition (wet + dry), hollows showed a drastic shift to net production of N2O but a non-significant increase in N-2 production. In tussocks only a minor increase of N-2 and N2O production was observed after NO3- addition. This study emphasizes the influence of physico-chemical conditions and biotic resource competition on the rates and responses of microbial denitrification in undrained fen ecosystems. Inferring a simple field-scale estimation of gaseous N emission suggests that undrained, monolith fen ecosystems constitute substantial sources of N-2 (1.79 mg N m(-2) hour(-1)) and considerable sinks for N2O (-0.96 mu g N m(-2) hour(-1)). These findings are of importance to further improve greenhouse gas budgeting and assess the impacts of global change on undrained fen ecosystems.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
WATER-TABLE, BOREAL PEATLANDS, DENITRIFICATION RATES, RESTORED PEATLAND, CLIMATE-CHANGE, N2O EMISSIONS, SOIL, MINERALIZATION, DYNAMICS, WETLANDS
journal title
EUROPEAN JOURNAL OF SOIL SCIENCE
Eur. J. Soil Sci.
volume
61
issue
5
pages
662 - 670
Web of Science type
Article
Web of Science id
000282474200005
JCR category
SOIL SCIENCE
JCR impact factor
1.932 (2010)
JCR rank
11/32 (2010)
JCR quartile
2 (2010)
ISSN
1351-0754
DOI
10.1111/j.1365-2389.2010.01269.x
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1252034
handle
http://hdl.handle.net/1854/LU-1252034
date created
2011-06-04 21:38:07
date last changed
2011-06-06 12:05:01
@article{1252034,
  abstract     = {Gaseous nitrogen exchanges from undrained peat soils and the effect of external nitrate input are poorly understood. This paper reports net N-2, and N2O exchanges as well as the short-term responses to nitrate addition from contrasting tussock and hollow soil habitats in an undrained monolith fen ecosystem located in northeast Poland. Gaseous N exchange rates were quantified by means of a He substitution technique. The net N-2 production in hollows (2.53 mg N m(-2) hour(-1)) was significantly higher than in tussocks (1.04 mg N m(-2) hour(-1)). Hollows also constituted a marked N2O sink (-3.04 mu g N m(-2) hour(-1)), while tussocks were a source for atmospheric N2O (2.08 mu g N m(-2) hour(-1)). Following amendment by NO3-, at a rate similar to atmospheric NO3- deposition (wet + dry), hollows showed a drastic shift to net production of N2O but a non-significant increase in N-2 production. In tussocks only a minor increase of N-2 and N2O production was observed after NO3- addition. This study emphasizes the influence of physico-chemical conditions and biotic resource competition on the rates and responses of microbial denitrification in undrained fen ecosystems. Inferring a simple field-scale estimation of gaseous N emission suggests that undrained, monolith fen ecosystems constitute substantial sources of N-2 (1.79 mg N m(-2) hour(-1)) and considerable sinks for N2O (-0.96 mu g N m(-2) hour(-1)). These findings are of importance to further improve greenhouse gas budgeting and assess the impacts of global change on undrained fen ecosystems.},
  author       = {Roobroeck, Dries and Butterbach-Bahl, Klaus and Br{\"u}ggemann, N and Boeckx, Pascal},
  issn         = {1351-0754},
  journal      = {EUROPEAN JOURNAL OF SOIL SCIENCE},
  keyword      = {WATER-TABLE,BOREAL PEATLANDS,DENITRIFICATION RATES,RESTORED PEATLAND,CLIMATE-CHANGE,N2O EMISSIONS,SOIL,MINERALIZATION,DYNAMICS,WETLANDS},
  language     = {eng},
  number       = {5},
  pages        = {662--670},
  title        = {Dinitrogen and nitrous oxide exchanges from an undrained monolith fen: short-term responses following nitrate addition},
  url          = {http://dx.doi.org/10.1111/j.1365-2389.2010.01269.x},
  volume       = {61},
  year         = {2010},
}

Chicago
Roobroeck, Dries, Klaus Butterbach-Bahl, N Brüggemann, and Pascal Boeckx. 2010. “Dinitrogen and Nitrous Oxide Exchanges from an Undrained Monolith Fen: Short-term Responses Following Nitrate Addition.” European Journal of Soil Science 61 (5): 662–670.
APA
Roobroeck, D., Butterbach-Bahl, K., Brüggemann, N., & Boeckx, P. (2010). Dinitrogen and nitrous oxide exchanges from an undrained monolith fen: short-term responses following nitrate addition. EUROPEAN JOURNAL OF SOIL SCIENCE, 61(5), 662–670.
Vancouver
1.
Roobroeck D, Butterbach-Bahl K, Brüggemann N, Boeckx P. Dinitrogen and nitrous oxide exchanges from an undrained monolith fen: short-term responses following nitrate addition. EUROPEAN JOURNAL OF SOIL SCIENCE. 2010;61(5):662–70.
MLA
Roobroeck, Dries, Klaus Butterbach-Bahl, N Brüggemann, et al. “Dinitrogen and Nitrous Oxide Exchanges from an Undrained Monolith Fen: Short-term Responses Following Nitrate Addition.” EUROPEAN JOURNAL OF SOIL SCIENCE 61.5 (2010): 662–670. Print.