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Measurements and estimations of biosphere-atmosphere exchange of greenhouse gases - Arable lands

Tóth, Eszter ; Barcza, Zoltán ; Birkás, Márta ; Gelybó, Györgyi ; Zsembeli, József ; Bottlik, László ; Davis, Kenneth J. ; Haszpra, László ; Kern, Anikó and Kljun, Natascha LU , et al. (2011) p.157-197
Abstract

An overview of carbon dioxide (CO2) exchange and soil respiration measurements is given for representative Hungarian agroecosystems. We present results of long-term atmosphere/biosphere CO2 exchange measurements carried out at the Hungarian tall tower site (Hegyhá tsál). Tall tower net ecosystem exchange (NEE) measurements provided consistent estimates of landscape-wide carbon dioxide dynamics. During 1997-2008, the region mostly behaved as a net CO2 sink on annual scale. Year-round NEE was in the range of-352 ± 49 g C m-2 year-1 and 43 ± 9 g C m-2 year-1 (negative values indicate uptake). The measurements are representative to a mixture of arable lands with... (More)

An overview of carbon dioxide (CO2) exchange and soil respiration measurements is given for representative Hungarian agroecosystems. We present results of long-term atmosphere/biosphere CO2 exchange measurements carried out at the Hungarian tall tower site (Hegyhá tsál). Tall tower net ecosystem exchange (NEE) measurements provided consistent estimates of landscape-wide carbon dioxide dynamics. During 1997-2008, the region mostly behaved as a net CO2 sink on annual scale. Year-round NEE was in the range of-352 ± 49 g C m-2 year-1 and 43 ± 9 g C m-2 year-1 (negative values indicate uptake). The measurements are representative to a mixture of arable lands with small contribution from other biome types. Effects of different soil tillage methods-applied in two long-term tillage experiments (Józsefmajor, Karcag) and in a peach orchard (Vác)-on soil CO 2 emission are also introduced. Soil respiration rate highly depended on the depth of soil disturbance and on the date of the measurements; CO 2 emissions measured immediately after tillage applications and during the vegetation period showed contradictory tendencies. Results obtained from a newly developed laboratory CO2 emission measurement method indicated strong coherences between soil carbon dioxide fluxes and soil water potential values.

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publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Eddy covariance method, NEE, Soil carbon dioxide efflux, Tillage, Undisturbed soil cores
host publication
Atmospheric Greenhouse Gases : The Hungarian Perspective - The Hungarian Perspective
editor
Haszpra, L and
pages
41 pages
publisher
Springer
external identifiers
  • scopus:84885788617
ISBN
978-90-481-9950-1
9789048199495
DOI
10.1007/978-90-481-9950-1_8
language
English
LU publication?
no
id
ad51c22e-d8b2-4f3d-8e3f-23b507d5ef11
date added to LUP
2018-10-16 03:43:12
date last changed
2020-01-13 01:03:22
@inbook{ad51c22e-d8b2-4f3d-8e3f-23b507d5ef11,
  abstract     = {<p>An overview of carbon dioxide (CO<sub>2</sub>) exchange and soil respiration measurements is given for representative Hungarian agroecosystems. We present results of long-term atmosphere/biosphere CO<sub>2</sub> exchange measurements carried out at the Hungarian tall tower site (Hegyhá tsál). Tall tower net ecosystem exchange (NEE) measurements provided consistent estimates of landscape-wide carbon dioxide dynamics. During 1997-2008, the region mostly behaved as a net CO<sub>2</sub> sink on annual scale. Year-round NEE was in the range of-352 ± 49 g C m<sup>-2</sup> year<sup>-1</sup> and 43 ± 9 g C m<sup>-2</sup> year<sup>-1</sup> (negative values indicate uptake). The measurements are representative to a mixture of arable lands with small contribution from other biome types. Effects of different soil tillage methods-applied in two long-term tillage experiments (Józsefmajor, Karcag) and in a peach orchard (Vác)-on soil CO <sub>2</sub> emission are also introduced. Soil respiration rate highly depended on the depth of soil disturbance and on the date of the measurements; CO <sub>2</sub> emissions measured immediately after tillage applications and during the vegetation period showed contradictory tendencies. Results obtained from a newly developed laboratory CO<sub>2</sub> emission measurement method indicated strong coherences between soil carbon dioxide fluxes and soil water potential values.</p>},
  author       = {Tóth, Eszter and Barcza, Zoltán and Birkás, Márta and Gelybó, Györgyi and Zsembeli, József and Bottlik, László and Davis, Kenneth J. and Haszpra, László and Kern, Anikó and Kljun, Natascha and Koós, Sándor and Kovács, Györgyi and Stingli, Attila and Farkas, Csilla},
  booktitle    = {Atmospheric Greenhouse Gases : The Hungarian Perspective},
  editor       = {Haszpra, L},
  isbn         = {978-90-481-9950-1},
  language     = {eng},
  month        = {12},
  pages        = {157--197},
  publisher    = {Springer},
  title        = {Measurements and estimations of biosphere-atmosphere exchange of greenhouse gases - Arable lands},
  url          = {http://dx.doi.org/10.1007/978-90-481-9950-1_8},
  doi          = {10.1007/978-90-481-9950-1_8},
  year         = {2011},
}