Advanced

Determinants of terrestrial ecosystem carbon balance inferred from European eddy covariance flux sites

Reichstein, Markus; Papale, Dario; Valentini, Riccardo; Aubinet, Marc; Bernhofer, Christian; Knohl, Alexander; Laurila, Tuomas; Lindroth, Anders LU ; Moors, Eddy and Pilegaard, Kim, et al. (2007) In Geophysical Research Letters 34(1).
Abstract
Pioneering work in the last century has resulted in a widely accepted paradigm that primary production is strongly positively related to temperature and water availability such that the northern hemispheric forest carbon sink may increase under conditions of global warming. However, the terrestrial carbon sink at the ecosystem level (i.e. net ecosystem productivity, NEP) depends on the net balance between gross primary productivity (GPP) and ecosystem respiration ( TER). Through an analysis of European eddy covariance flux data sets, we find that the common climate relationships for primary production do not hold for NEP. This is explained by the fact that decreases in GPP are largely compensated by parallel decreases in TER when climatic... (More)
Pioneering work in the last century has resulted in a widely accepted paradigm that primary production is strongly positively related to temperature and water availability such that the northern hemispheric forest carbon sink may increase under conditions of global warming. However, the terrestrial carbon sink at the ecosystem level (i.e. net ecosystem productivity, NEP) depends on the net balance between gross primary productivity (GPP) and ecosystem respiration ( TER). Through an analysis of European eddy covariance flux data sets, we find that the common climate relationships for primary production do not hold for NEP. This is explained by the fact that decreases in GPP are largely compensated by parallel decreases in TER when climatic factors become more limiting. Moreover, we found overall that water availability was a significant modulator of NEP, while the multivariate effect of mean annual temperature is small and not significant. These results indicate that climate- and particularly temperature-based projections of net carbon balance may be misleading. Future research should focus on interactions between the water and carbon cycles and the effects of disturbances on the carbon balance of terrestrial ecosystems. (Less)
Please use this url to cite or link to this publication:
author
, et al. (More)
(Less)
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
carbon-water cycle, eddy covariance
in
Geophysical Research Letters
volume
34
issue
1
publisher
American Geophysical Union
external identifiers
  • wos:000243529200002
  • scopus:34249906881
ISSN
1944-8007
DOI
10.1029/2006GL027880
language
English
LU publication?
yes
id
ccc20f97-febe-45c7-9703-99c46374b9f6 (old id 679439)
date added to LUP
2007-12-14 10:54:39
date last changed
2017-10-22 04:42:56
@article{ccc20f97-febe-45c7-9703-99c46374b9f6,
  abstract     = {Pioneering work in the last century has resulted in a widely accepted paradigm that primary production is strongly positively related to temperature and water availability such that the northern hemispheric forest carbon sink may increase under conditions of global warming. However, the terrestrial carbon sink at the ecosystem level (i.e. net ecosystem productivity, NEP) depends on the net balance between gross primary productivity (GPP) and ecosystem respiration ( TER). Through an analysis of European eddy covariance flux data sets, we find that the common climate relationships for primary production do not hold for NEP. This is explained by the fact that decreases in GPP are largely compensated by parallel decreases in TER when climatic factors become more limiting. Moreover, we found overall that water availability was a significant modulator of NEP, while the multivariate effect of mean annual temperature is small and not significant. These results indicate that climate- and particularly temperature-based projections of net carbon balance may be misleading. Future research should focus on interactions between the water and carbon cycles and the effects of disturbances on the carbon balance of terrestrial ecosystems.},
  author       = {Reichstein, Markus and Papale, Dario and Valentini, Riccardo and Aubinet, Marc and Bernhofer, Christian and Knohl, Alexander and Laurila, Tuomas and Lindroth, Anders and Moors, Eddy and Pilegaard, Kim and Seufert, Guenther},
  issn         = {1944-8007},
  keyword      = {carbon-water cycle,eddy covariance},
  language     = {eng},
  number       = {1},
  publisher    = {American Geophysical Union},
  series       = {Geophysical Research Letters},
  title        = {Determinants of terrestrial ecosystem carbon balance inferred from European eddy covariance flux sites},
  url          = {http://dx.doi.org/10.1029/2006GL027880},
  volume       = {34},
  year         = {2007},
}