Summer warming and increased winter snow cover affect Sphagnum fuscum growth, structure and production in a sub-arctic bog.
Sphagnum mosses form a major component of northern peatlands, which are expected to experience substantially higher increases in temperature and winter precipitation than the global average. Sphagnum may play an important role in the responses of the global carbon cycle to climate change. We investi...
Published in: | Global Change Biology |
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Language: | English |
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Online Access: | https://research.vu.nl/en/publications/73857d15-b034-4c7e-90c3-800da4f3fdc3 https://doi.org/10.1111/j.1365-2486.2003.00718.x https://hdl.handle.net/1871.1/73857d15-b034-4c7e-90c3-800da4f3fdc3 |
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ftvuamstcris:oai:research.vu.nl:publications/73857d15-b034-4c7e-90c3-800da4f3fdc3 2024-09-15T17:51:06+00:00 Summer warming and increased winter snow cover affect Sphagnum fuscum growth, structure and production in a sub-arctic bog. Dorrepaal, E. Aerts, R. Cornelissen, J.H.C. Callaghan, T.V. van Logtestijn, R.S.P 2003 https://research.vu.nl/en/publications/73857d15-b034-4c7e-90c3-800da4f3fdc3 https://doi.org/10.1111/j.1365-2486.2003.00718.x https://hdl.handle.net/1871.1/73857d15-b034-4c7e-90c3-800da4f3fdc3 eng eng https://research.vu.nl/en/publications/73857d15-b034-4c7e-90c3-800da4f3fdc3 info:eu-repo/semantics/restrictedAccess Dorrepaal , E , Aerts , R , Cornelissen , J H C , Callaghan , T V & van Logtestijn , R S P 2003 , ' Summer warming and increased winter snow cover affect Sphagnum fuscum growth, structure and production in a sub-arctic bog. ' , Global Change Biology , vol. 10 , pp. 93-104 . https://doi.org/10.1111/j.1365-2486.2003.00718.x /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action article 2003 ftvuamstcris https://doi.org/10.1111/j.1365-2486.2003.00718.x 2024-07-31T23:46:02Z Sphagnum mosses form a major component of northern peatlands, which are expected to experience substantially higher increases in temperature and winter precipitation than the global average. Sphagnum may play an important role in the responses of the global carbon cycle to climate change. We investigated the responses of summer length growth, carpet structure and production in Sphagnum fuscum to experimentally induced changes in climate in a sub-arctic bog. Thereto, we used open-top chambers (OTCs) to create six climate scenarios including changes in summer temperatures, and changes in winter snow cover and spring temperatures. In winter, the OTCs doubled the snow thickness, resulting in 0.5-2.8°C higher average air temperatures. Spring air temperatures in OTCs increased by 1.0°C. Summer warming had a maximum effect of 0.9°C, while vapor pressure deficit was not affected. The climate manipulations had strong effects on S. fuscum. Summer warming enhanced the length increment by 42-62%, whereas bulk density decreased. This resulted in a trend (P<0.10) of enhanced biomass production. Winter snow addition enhanced dry matter production by 33%, despite the fact that the length growth and bulk density did not change significantly. The addition of spring warming to snow addition alone did not significantly enhance this effect, but we may have missed part of the early spring growth. There were no interactions between the manipulations in summer and those in winter/spring, indicating that the effects were additive. Summer warming may in the long term negatively affect productivity through the adverse effects of changes in Sphagnum structure on moisture holding and transporting capacity. Moreover, the strong length growth enhancement may affect interactions with other mosses and vascular plants. Because winter snow addition enhanced the production of S. fuscum without affecting its structure, it may increase the carbon balance of northern peatlands. Article in Journal/Newspaper Arctic Climate change Vrije Universiteit Amsterdam (VU): Research Portal Global Change Biology 10 1 93 104 |
institution |
Open Polar |
collection |
Vrije Universiteit Amsterdam (VU): Research Portal |
op_collection_id |
ftvuamstcris |
language |
English |
topic |
/dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action |
spellingShingle |
/dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action Dorrepaal, E. Aerts, R. Cornelissen, J.H.C. Callaghan, T.V. van Logtestijn, R.S.P Summer warming and increased winter snow cover affect Sphagnum fuscum growth, structure and production in a sub-arctic bog. |
topic_facet |
/dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action |
description |
Sphagnum mosses form a major component of northern peatlands, which are expected to experience substantially higher increases in temperature and winter precipitation than the global average. Sphagnum may play an important role in the responses of the global carbon cycle to climate change. We investigated the responses of summer length growth, carpet structure and production in Sphagnum fuscum to experimentally induced changes in climate in a sub-arctic bog. Thereto, we used open-top chambers (OTCs) to create six climate scenarios including changes in summer temperatures, and changes in winter snow cover and spring temperatures. In winter, the OTCs doubled the snow thickness, resulting in 0.5-2.8°C higher average air temperatures. Spring air temperatures in OTCs increased by 1.0°C. Summer warming had a maximum effect of 0.9°C, while vapor pressure deficit was not affected. The climate manipulations had strong effects on S. fuscum. Summer warming enhanced the length increment by 42-62%, whereas bulk density decreased. This resulted in a trend (P<0.10) of enhanced biomass production. Winter snow addition enhanced dry matter production by 33%, despite the fact that the length growth and bulk density did not change significantly. The addition of spring warming to snow addition alone did not significantly enhance this effect, but we may have missed part of the early spring growth. There were no interactions between the manipulations in summer and those in winter/spring, indicating that the effects were additive. Summer warming may in the long term negatively affect productivity through the adverse effects of changes in Sphagnum structure on moisture holding and transporting capacity. Moreover, the strong length growth enhancement may affect interactions with other mosses and vascular plants. Because winter snow addition enhanced the production of S. fuscum without affecting its structure, it may increase the carbon balance of northern peatlands. |
format |
Article in Journal/Newspaper |
author |
Dorrepaal, E. Aerts, R. Cornelissen, J.H.C. Callaghan, T.V. van Logtestijn, R.S.P |
author_facet |
Dorrepaal, E. Aerts, R. Cornelissen, J.H.C. Callaghan, T.V. van Logtestijn, R.S.P |
author_sort |
Dorrepaal, E. |
title |
Summer warming and increased winter snow cover affect Sphagnum fuscum growth, structure and production in a sub-arctic bog. |
title_short |
Summer warming and increased winter snow cover affect Sphagnum fuscum growth, structure and production in a sub-arctic bog. |
title_full |
Summer warming and increased winter snow cover affect Sphagnum fuscum growth, structure and production in a sub-arctic bog. |
title_fullStr |
Summer warming and increased winter snow cover affect Sphagnum fuscum growth, structure and production in a sub-arctic bog. |
title_full_unstemmed |
Summer warming and increased winter snow cover affect Sphagnum fuscum growth, structure and production in a sub-arctic bog. |
title_sort |
summer warming and increased winter snow cover affect sphagnum fuscum growth, structure and production in a sub-arctic bog. |
publishDate |
2003 |
url |
https://research.vu.nl/en/publications/73857d15-b034-4c7e-90c3-800da4f3fdc3 https://doi.org/10.1111/j.1365-2486.2003.00718.x https://hdl.handle.net/1871.1/73857d15-b034-4c7e-90c3-800da4f3fdc3 |
genre |
Arctic Climate change |
genre_facet |
Arctic Climate change |
op_source |
Dorrepaal , E , Aerts , R , Cornelissen , J H C , Callaghan , T V & van Logtestijn , R S P 2003 , ' Summer warming and increased winter snow cover affect Sphagnum fuscum growth, structure and production in a sub-arctic bog. ' , Global Change Biology , vol. 10 , pp. 93-104 . https://doi.org/10.1111/j.1365-2486.2003.00718.x |
op_relation |
https://research.vu.nl/en/publications/73857d15-b034-4c7e-90c3-800da4f3fdc3 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1111/j.1365-2486.2003.00718.x |
container_title |
Global Change Biology |
container_volume |
10 |
container_issue |
1 |
container_start_page |
93 |
op_container_end_page |
104 |
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1810292911665840128 |