Abstract
Abstract Carbonyl sulfide (COS) is gaining interest as a proxy for gross primary productivity (GPP). Thinning of the Hyytiälä (Finland) forest in the winter of 2019–2020 altered the response of COS fluxes to environmental conditions in the summer of 2021. For the first time, extended periods of ecosystem-scale COS emissions were observed in a boreal forest. The warm and dry conditions in the summer of 2021 reduced the COS uptake by the canopy and elevated soil abiotic COS production. However, the reduction in canopy uptake and the increase in soil production do not fully explain the observed ecosystem-level emissions. The analysis suggests an unidentified, homogeneously distributed COS source in the eddy covariance footprint area, potentially from the photodegradation of forest floor litter and cutting residue from thinning. Such a source in a boreal forest stand warrants further source apportionment studies to effectively use COS as a proxy for GPP.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
Forest thinning altered the environmental response of summer COS fluxes.
- Taxon
- foreste0
- Treatment
- Thinninge0
- Outcome
- response of COS fluxes to environmental conditionse0
- Qualifier
- summer of 2021e0
- Setting
- Hyytiälä (Finland)e0
Not reportedComparatorDirection
Verbatim
e0“Thinning of the Hyytiälä (Finland) forest in the winter of 2019–2020 altered the response of COS fluxes to environmental conditions in the summer of 2021”
Claim · model-written summary
Extended periods of ecosystem-scale COS emission were observed in the boreal forest.
Not reportedDirection
Verbatim
e0“extended periods of ecosystem-scale COS emissions were observed in a boreal forest”
Claim · model-written summary
Warm, dry summer conditions reduced canopy COS uptake.
Not reportedComparator
Verbatim
e0“The warm and dry conditions in the summer of 2021 reduced the COS uptake by the canopy”
Claim · model-written summary
Warm, dry summer conditions elevated abiotic COS production in forest soil.
- Taxon
- boreal forestt0
- Treatment
- warm and dry conditionse0
- Outcome
- soil abiotic COS productione0
- Direction
- elevatede0
Not reportedComparator
Verbatim
e0“The warm and dry conditions in the summer of 2021 reduced the COS uptake by the canopy and elevated soil abiotic COS production”
t0“boreal forest”
Claim · model-written summary
Reduced canopy uptake and greater soil production did not fully explain ecosystem emissions.
Verbatim
e0“the reduction in canopy uptake and the increase in soil production do not fully explain the observed ecosystem-level emissions”
t0“boreal forest”
Claim · model-written summary
Analysis suggested an unidentified, spatially distributed COS source, possibly from forest floor litter and thinning residue.
Verbatim
e0“an unidentified, homogeneously distributed COS source in the eddy covariance footprint area, potentially from the photodegradation of forest floor litter and cutting residue from thinning”
t0“boreal forest”
Claim · model-written summary
The authors called for source apportionment before using COS effectively as a GPP proxy in boreal forest.
Verbatim
e0“Such a source in a boreal forest stand warrants further source apportionment studies to effectively use COS as a proxy for GPP”