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Leaf area index is the principal scaling parameter for both gross photosynthesis and ecosystem respiration of Northern deciduous and coniferous forests

Lindroth, Anders LU ; Lagergren, Fredrik LU ; Aurela, Mika; Bjarnadottir, Brynhildur LU ; Christensen, Torben LU ; Dellwik, Ebba; Grelle, Achim; Ibrom, Andreas; Johansson, Torbjörn LU and Lankreijer, Harry LU , et al. (2008) In Tellus. Series B: Chemical and Physical Meteorology 60(2). p.129-142
Abstract
Data on net CO2 exchange from eight forests in Denmark, Sweden, Finland and Iceland were used to analyse which factors were controlling photosynthesis and respiration. The forests consisted of different species ranging in climatic condition from temperate to subarctic. Only well mixed conditions were analysed (u* > 0.3 m s(-1)). The parameters of a light response function showed strong seasonal variations with similar behaviour for all stands except for a beech forest where the development of a vigorous ground vegetation in spring affected the photosynthesis parameters differently as compared to the other forests. The beech forest also showed the highest respiration rates in the earlier part of the growing season in contrast to the... (More)
Data on net CO2 exchange from eight forests in Denmark, Sweden, Finland and Iceland were used to analyse which factors were controlling photosynthesis and respiration. The forests consisted of different species ranging in climatic condition from temperate to subarctic. Only well mixed conditions were analysed (u* > 0.3 m s(-1)). The parameters of a light response function showed strong seasonal variations with similar behaviour for all stands except for a beech forest where the development of a vigorous ground vegetation in spring affected the photosynthesis parameters differently as compared to the other forests. The beech forest also showed the highest respiration rates in the earlier part of the growing season in contrast to the other forests that showed maximum values in late part of July. The mean half-monthly nighttime respiration rates were well explained by an equation with one fitting parameter, the respiration rate at 10 degrees C, with an r(2) = 0.864 for all stands together. The difference between the stands concerning both photosynthesis and respiration parameters were largely explained by the differences in LAI. After normalizing for LAI, the only remaining correlation was between respiration and stand age. These results are promising for application of remote sensing for estimation of respiration as well as gross primary productivity from forests. (Less)
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publication status
published
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in
Tellus. Series B: Chemical and Physical Meteorology
volume
60
issue
2
pages
129 - 142
publisher
Taylor & Francis
external identifiers
  • wos:000254277200001
  • scopus:41549099326
ISSN
0280-6509
DOI
10.1111/j.1600-0889.2007.00330.x
language
English
LU publication?
yes
id
fa0962b3-c13d-4505-bb6e-da7f88779a9d (old id 1183106)
date added to LUP
2008-09-02 11:44:21
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2017-07-30 04:03:23
@article{fa0962b3-c13d-4505-bb6e-da7f88779a9d,
  abstract     = {Data on net CO2 exchange from eight forests in Denmark, Sweden, Finland and Iceland were used to analyse which factors were controlling photosynthesis and respiration. The forests consisted of different species ranging in climatic condition from temperate to subarctic. Only well mixed conditions were analysed (u* > 0.3 m s(-1)). The parameters of a light response function showed strong seasonal variations with similar behaviour for all stands except for a beech forest where the development of a vigorous ground vegetation in spring affected the photosynthesis parameters differently as compared to the other forests. The beech forest also showed the highest respiration rates in the earlier part of the growing season in contrast to the other forests that showed maximum values in late part of July. The mean half-monthly nighttime respiration rates were well explained by an equation with one fitting parameter, the respiration rate at 10 degrees C, with an r(2) = 0.864 for all stands together. The difference between the stands concerning both photosynthesis and respiration parameters were largely explained by the differences in LAI. After normalizing for LAI, the only remaining correlation was between respiration and stand age. These results are promising for application of remote sensing for estimation of respiration as well as gross primary productivity from forests.},
  author       = {Lindroth, Anders and Lagergren, Fredrik and Aurela, Mika and Bjarnadottir, Brynhildur and Christensen, Torben and Dellwik, Ebba and Grelle, Achim and Ibrom, Andreas and Johansson, Torbjörn and Lankreijer, Harry and Launiainen, Samuli and Laurila, Tuomas and Mölder, Meelis and Nikinmaa, Eero and Pilegaard, Kim and Sigurdsson, Bjarni D. and Vesala, Timo},
  issn         = {0280-6509},
  language     = {eng},
  number       = {2},
  pages        = {129--142},
  publisher    = {Taylor & Francis},
  series       = {Tellus. Series B: Chemical and Physical Meteorology},
  title        = {Leaf area index is the principal scaling parameter for both gross photosynthesis and ecosystem respiration of Northern deciduous and coniferous forests},
  url          = {http://dx.doi.org/10.1111/j.1600-0889.2007.00330.x},
  volume       = {60},
  year         = {2008},
}