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Activity of temperate grassland plants and symbiotic fungi during the winter - implications for community structure and carbon cycling in a changing climate

Birgander, Johanna LU ; Rousk, Johannes LU and Olsson, Pål Axel LU (2012) In Nordic Journal of Botany 30(5). p.513-521
Abstract
Several investigations have revealed surprisingly high activities during the winter in vegetation and soil in temperate and subarctic areas. Plants have been found to photosynthesize even under snow cover and at temperatures below freezing, and decomposer microorganisms can function, at low rates, all year around. In temperate grasslands, the vegetation includes winter annual herbs as well as bryophytes, which have the potential to be active and are thus susceptible to changing temperatures during winter. If temperatures stay below freezing and there is a snow cover, an increase in temperatures could in fact decrease the soil temperature due to reduced insulation by snow cover. On the other hand, if winter temperatures initially fluctuate... (More)
Several investigations have revealed surprisingly high activities during the winter in vegetation and soil in temperate and subarctic areas. Plants have been found to photosynthesize even under snow cover and at temperatures below freezing, and decomposer microorganisms can function, at low rates, all year around. In temperate grasslands, the vegetation includes winter annual herbs as well as bryophytes, which have the potential to be active and are thus susceptible to changing temperatures during winter. If temperatures stay below freezing and there is a snow cover, an increase in temperatures could in fact decrease the soil temperature due to reduced insulation by snow cover. On the other hand, if winter temperatures initially fluctuate around the freezing point, an increase by a few degrees might produce frost-free conditions. Based on available data, the composition of plant communities are strongly influenced by temperature conditions in the preceding winter. We conclude that the winter season in grasslands needs more research attention, to start to resolve which species are active and how they respond to a changing climate. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nordic Journal of Botany
volume
30
issue
5
pages
513 - 521
publisher
Board of the Nordic Journal of Botany
external identifiers
  • wos:000309923600001
  • scopus:84867592663
ISSN
0107-055X
DOI
10.1111/j.1756-1051.2012.01794.x
project
Effect of environmental factors on fungal and bacterial growth in soil
Microbial carbon-use efficiency
BECC
language
English
LU publication?
yes
id
a0cf963e-69cb-4218-8e2f-50f1b8e6508b (old id 3181323)
date added to LUP
2012-12-06 15:03:05
date last changed
2017-01-01 03:40:41
@article{a0cf963e-69cb-4218-8e2f-50f1b8e6508b,
  abstract     = {Several investigations have revealed surprisingly high activities during the winter in vegetation and soil in temperate and subarctic areas. Plants have been found to photosynthesize even under snow cover and at temperatures below freezing, and decomposer microorganisms can function, at low rates, all year around. In temperate grasslands, the vegetation includes winter annual herbs as well as bryophytes, which have the potential to be active and are thus susceptible to changing temperatures during winter. If temperatures stay below freezing and there is a snow cover, an increase in temperatures could in fact decrease the soil temperature due to reduced insulation by snow cover. On the other hand, if winter temperatures initially fluctuate around the freezing point, an increase by a few degrees might produce frost-free conditions. Based on available data, the composition of plant communities are strongly influenced by temperature conditions in the preceding winter. We conclude that the winter season in grasslands needs more research attention, to start to resolve which species are active and how they respond to a changing climate.},
  author       = {Birgander, Johanna and Rousk, Johannes and Olsson, Pål Axel},
  issn         = {0107-055X},
  language     = {eng},
  number       = {5},
  pages        = {513--521},
  publisher    = {Board of the Nordic Journal of Botany},
  series       = {Nordic Journal of Botany},
  title        = {Activity of temperate grassland plants and symbiotic fungi during the winter - implications for community structure and carbon cycling in a changing climate},
  url          = {http://dx.doi.org/10.1111/j.1756-1051.2012.01794.x},
  volume       = {30},
  year         = {2012},
}