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Mapping conservation priorities in alpine and subartctic Swedish lakes affected by rapid climate change

Said Al-Kharusi, Enass LU ; Tenenbaum, David E. LU ; Kutser, Tiit ; Karlsson, Jan ; Bergström, Ann-Kristin and Berggren, Martin LU (2018) ASLO Summer Meeting 2018
Abstract
Swedish alpine and subarctic areas undergo rapid transitions due to climate change, especially in relatively humid areas where the forest vegetation is expanding. It has been suggested that lakes in these areas are in transition from clearwater into brownwater state, because of the humus layer building up in surrounding soils, with negative consequences, e.g., for the biomass production of zooplankton and fish. However, this idea remains a hypothesis to be tested at a large scale. We used the new high-resolution satellite Sentinel-2 to evaluate the relationship between lake color and forest succession in 250 widely distributed lakes across Sweden. Preliminary results show that lakes remain surprisingly clear in areas of recent forest... (More)
Swedish alpine and subarctic areas undergo rapid transitions due to climate change, especially in relatively humid areas where the forest vegetation is expanding. It has been suggested that lakes in these areas are in transition from clearwater into brownwater state, because of the humus layer building up in surrounding soils, with negative consequences, e.g., for the biomass production of zooplankton and fish. However, this idea remains a hypothesis to be tested at a large scale. We used the new high-resolution satellite Sentinel-2 to evaluate the relationship between lake color and forest succession in 250 widely distributed lakes across Sweden. Preliminary results show that lakes remain surprisingly clear in areas of recent forest expansion, suggesting that there is lag time before brownification occurs. Our study could be used to map regions that are sensitive to future water brownification. (Less)
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organization
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type
Contribution to conference
publication status
published
subject
pages
1 pages
conference name
ASLO Summer Meeting 2018
conference location
Victoria, Canada
conference dates
2018-06-10 - 2018-06-15
language
English
LU publication?
yes
id
dbe95025-d321-4287-a178-62a9a615c1e6
date added to LUP
2018-07-05 16:22:36
date last changed
2019-05-17 13:40:21
@misc{dbe95025-d321-4287-a178-62a9a615c1e6,
  abstract     = {Swedish alpine and subarctic areas undergo rapid transitions due to climate change, especially in relatively humid areas where the forest vegetation is expanding. It has been suggested that lakes in these areas are in transition from clearwater into brownwater state, because of the humus layer building up in surrounding soils, with negative consequences, e.g., for the biomass production of zooplankton and fish. However, this idea remains a hypothesis to be tested at a large scale. We used the new high-resolution satellite Sentinel-2 to evaluate the relationship between lake color and forest succession in 250 widely distributed lakes across Sweden. Preliminary results show that lakes remain surprisingly clear in areas of recent forest expansion, suggesting that there is lag time before brownification occurs. Our study could be used to map regions that are sensitive to future water brownification.},
  author       = {Said Al-Kharusi, Enass and Tenenbaum, David E. and Kutser, Tiit and Karlsson, Jan and Bergström, Ann-Kristin and Berggren, Martin},
  language     = {eng},
  title        = {Mapping conservation priorities in alpine and subartctic Swedish lakes affected by rapid climate change},
  year         = {2018},
}