Data from: Photosynthetic and phenological responses of dwarf shrubs to the depth and properties of snow
Snow is known to have a major impact on vegetation in arctic ecosystems, but little is known about how snow affects plants in boreal forests, where the snowpack is uneven due to canopy impact. The responses of two dwarf shrubs, the evergreen Vaccinium vitis-idaea and the deciduous V. myrtillus, to s...
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Online Access: | https://doi.org/10.5061/dryad.kg017 |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::85ca34b77e69e4e5d3095574dc66ce03 2023-05-15T15:18:35+02:00 Data from: Photosynthetic and phenological responses of dwarf shrubs to the depth and properties of snow Saarinen, Timo Rasmus, Sirpa Lundell, Robin Kauppinen, Olli-Kalle Hänninen, Heikki 2020-07-18 https://doi.org/10.5061/dryad.kg017 undefined unknown http://dx.doi.org/10.5061/dryad.kg017 https://dx.doi.org/10.5061/dryad.kg017 lic_creative-commons oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:89495 10.5061/dryad.kg017 oai:easy.dans.knaw.nl:easy-dataset:89495 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 Life sciences medicine and health care Vaccinium myrtillus photosynthesis phenology Vaccinium vitis-idaea winter stress envir geo Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2020 fttriple https://doi.org/10.5061/dryad.kg017 2023-01-22T17:16:19Z Snow is known to have a major impact on vegetation in arctic ecosystems, but little is known about how snow affects plants in boreal forests, where the snowpack is uneven due to canopy impact. The responses of two dwarf shrubs, the evergreen Vaccinium vitis-idaea and the deciduous V. myrtillus, to snow conditions were studied in a snow manipulation experiment in southern Finland. The thermal insulation of the snowpack was expected to decrease with partial removal or compression of the snow, while addition of snow was expected to have the opposite effect. The penetration of light was manipulated by partial removal of snow or by formation of an artificial ice layer in the snowpack. CO2 exchange measurements that were carried out at the time of maximum snow depth in late March indicated significant photosynthetic activity in the leaves of V. vitis-idaea under snow. Net gain of CO2 was observed in the daytime on all the manipulation plots, excluding the snow addition plots, where light intensity was very low. The subnivean photosynthesis compensated for a substantial proportion (up to 80%) of the respiratory CO2 losses. Chlorophyll fluorescence measurements indicated reduced potential capacity of photosystem II in the leaves of V. vitis-idaea on those plots where snow cover was thin. Neither V. vitis-idaea nor V. myrtillus suffered from frost damage (assessed as electrolyte leakage) when thermal insulation was reduced by means of snow manipulations. No phenological responses were observed in V. vitis-idaea, but in V. myrtillus bud burst, leaf unfolding and flowering were advanced by 1–3 days on the addition plots. The results of the present study show that dwarf shrubs respond to not only the thickness of snow but also the physical properties of snow, both of which are expected to change due to climatic warming. Saarinen et al_oikosField data collected for the paper 10.1111/oik.02233. For details, see ReadMe.txt. Dataset Arctic Unknown Arctic Saarinen ENVELOPE(28.966,28.966,65.600,65.600) |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
unknown |
topic |
Life sciences medicine and health care Vaccinium myrtillus photosynthesis phenology Vaccinium vitis-idaea winter stress envir geo |
spellingShingle |
Life sciences medicine and health care Vaccinium myrtillus photosynthesis phenology Vaccinium vitis-idaea winter stress envir geo Saarinen, Timo Rasmus, Sirpa Lundell, Robin Kauppinen, Olli-Kalle Hänninen, Heikki Data from: Photosynthetic and phenological responses of dwarf shrubs to the depth and properties of snow |
topic_facet |
Life sciences medicine and health care Vaccinium myrtillus photosynthesis phenology Vaccinium vitis-idaea winter stress envir geo |
description |
Snow is known to have a major impact on vegetation in arctic ecosystems, but little is known about how snow affects plants in boreal forests, where the snowpack is uneven due to canopy impact. The responses of two dwarf shrubs, the evergreen Vaccinium vitis-idaea and the deciduous V. myrtillus, to snow conditions were studied in a snow manipulation experiment in southern Finland. The thermal insulation of the snowpack was expected to decrease with partial removal or compression of the snow, while addition of snow was expected to have the opposite effect. The penetration of light was manipulated by partial removal of snow or by formation of an artificial ice layer in the snowpack. CO2 exchange measurements that were carried out at the time of maximum snow depth in late March indicated significant photosynthetic activity in the leaves of V. vitis-idaea under snow. Net gain of CO2 was observed in the daytime on all the manipulation plots, excluding the snow addition plots, where light intensity was very low. The subnivean photosynthesis compensated for a substantial proportion (up to 80%) of the respiratory CO2 losses. Chlorophyll fluorescence measurements indicated reduced potential capacity of photosystem II in the leaves of V. vitis-idaea on those plots where snow cover was thin. Neither V. vitis-idaea nor V. myrtillus suffered from frost damage (assessed as electrolyte leakage) when thermal insulation was reduced by means of snow manipulations. No phenological responses were observed in V. vitis-idaea, but in V. myrtillus bud burst, leaf unfolding and flowering were advanced by 1–3 days on the addition plots. The results of the present study show that dwarf shrubs respond to not only the thickness of snow but also the physical properties of snow, both of which are expected to change due to climatic warming. Saarinen et al_oikosField data collected for the paper 10.1111/oik.02233. For details, see ReadMe.txt. |
format |
Dataset |
author |
Saarinen, Timo Rasmus, Sirpa Lundell, Robin Kauppinen, Olli-Kalle Hänninen, Heikki |
author_facet |
Saarinen, Timo Rasmus, Sirpa Lundell, Robin Kauppinen, Olli-Kalle Hänninen, Heikki |
author_sort |
Saarinen, Timo |
title |
Data from: Photosynthetic and phenological responses of dwarf shrubs to the depth and properties of snow |
title_short |
Data from: Photosynthetic and phenological responses of dwarf shrubs to the depth and properties of snow |
title_full |
Data from: Photosynthetic and phenological responses of dwarf shrubs to the depth and properties of snow |
title_fullStr |
Data from: Photosynthetic and phenological responses of dwarf shrubs to the depth and properties of snow |
title_full_unstemmed |
Data from: Photosynthetic and phenological responses of dwarf shrubs to the depth and properties of snow |
title_sort |
data from: photosynthetic and phenological responses of dwarf shrubs to the depth and properties of snow |
publishDate |
2020 |
url |
https://doi.org/10.5061/dryad.kg017 |
long_lat |
ENVELOPE(28.966,28.966,65.600,65.600) |
geographic |
Arctic Saarinen |
geographic_facet |
Arctic Saarinen |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:89495 10.5061/dryad.kg017 oai:easy.dans.knaw.nl:easy-dataset:89495 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 |
op_relation |
http://dx.doi.org/10.5061/dryad.kg017 https://dx.doi.org/10.5061/dryad.kg017 |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.kg017 |
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1766348779209883648 |