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Developing an empirical model of stand GPP with the LUE approach: analysis of eddy covariance data at five contrasting conifer sites in Europe

MÄKELÄ, ANNIKKI, PULKKINEN, MINNA, KOLARI, PASI, LAGERGREN, FREDRIK, BERBIGIER, PAUL, LINDROTH, ANDERS, LOUSTAU, DENIS, NIKINMAA, EERO, VESALA, TIMO, HARI, PERTTI·2008·Global Change Biology
DOI 10.1111/j.1365-2486.2007.01463.x
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Abstract

This paper develops a statistical model for daily gross primary production (GPP) in boreal and temperate coniferous forests. The model applies the light use efficiency (LUE) approach, which estimates the conversion efficiency of daily absorbed photosynthetically active radiation (APAR) into daily GPP as a product of potential LUE and modifying factors. The latter were derived from daily total APAR and daily mean temperature, vapour pressure deficit (VPD) and soil water content (SWC). Modelling data came from five European eddy covariance measurement towers over 2–8 years. The model was tested against independent data from two AmeriFlux stations. The model with the APAR, temperature and VPD modifiers worked well in almost all the site–year combinations, but the SWC modifier only improved the fit in few cases. Geographical variation was found in the modifiers and potential LUE in site‐specific models. When a model was fitted to pooled data, differences between sites could be explained by potential LUE, leaf area and environmental conditions. The test against the AmeriFlux data corroborated this finding. The potential LUE varied from 1.9 to 3.1 g C MJ−1, and a weak correlation was found between foliar nitrogen concentration and potential LUE. Some year‐to‐year variation remained which could be captured by neither the pooled nor the site‐specific models.

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Metadata

Authors
MÄKELÄ, A., PULKKINEN, M., KOLARI, P., LAGERGREN, F., BERBIGIER, P., LINDROTH, A., LOUSTAU, D., NIKINMAA, E., VESALA, T., & HARI, P.
Venue
Global Change Biology
Publisher
Wiley
Published
2007-09-24
Volume
14
Issue
1
Pages
92-108
ISSN
  • 1354-1013 (ISSN-L)
  • 1365-2486
DOI
10.1111/j.1365-2486.2007.01463.x
OpenAlex
W2112608799
Cited by
188
References
0
FWCI
6.06
Type
journal article
Language
en
Open access
closed
Licence
onlinelibrary.wiley.com/termsAndConditions#vor (vor)

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CoChat. (2026). Citation check: Developing an empirical model of stand GPP with the LUE approach: analysis of eddy covariance data at five contrasting conifer sites in Europe. https://app.cochat.ai/papers/10.1111/j.1365-2486.2007.01463.x
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MÄKELÄ, A., PULKKINEN, M., KOLARI, P., LAGERGREN, F., BERBIGIER, P., LINDROTH, A., LOUSTAU, D., NIKINMAA, E., VESALA, T., & HARI, P. (2008). Developing an empirical model of stand GPP with the LUE approach: analysis of eddy covariance data at five contrasting conifer sites in Europe. Global Change Biology. https://doi.org/10.1111/j.1365-2486.2007.01463.x

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