Controls on moss evaporation in a boreal black spruce forest
[1] Mosses are an important component of the boreal forest, but little is known about their contribution to ecosystem carbon, water, and energy exchange. We studied the role of mosses in boreal forest evapotranspiration by conducting two experiments in a black spruce forest in Fairbanks, Alaska. Mos...
Published in: | Global Biogeochemical Cycles |
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ftunivwagenin:oai:library.wur.nl:wurpubs/328254 2024-02-04T09:58:22+01:00 Controls on moss evaporation in a boreal black spruce forest Heijmans, M.M.P.D. Arp, W.J. Chapin, F.S. 2004 application/pdf https://research.wur.nl/en/publications/controls-on-moss-evaporation-in-a-boreal-black-spruce-forest https://doi.org/10.1029/2003GB002128 en eng https://edepot.wur.nl/40669 https://research.wur.nl/en/publications/controls-on-moss-evaporation-in-a-boreal-black-spruce-forest doi:10.1029/2003GB002128 info:eu-repo/semantics/openAccess Wageningen University & Research Global Biogeochemical Cycles 18 (2004) 2 ISSN: 0886-6236 arctic tundra carbon balance climate-change energy-exchange evapotranspiration hylocomium-splendens polytrichum-commune sphagnum surface water-content info:eu-repo/semantics/article Article/Letter to editor info:eu-repo/semantics/publishedVersion 2004 ftunivwagenin https://doi.org/10.1029/2003GB002128 2024-01-10T23:26:38Z [1] Mosses are an important component of the boreal forest, but little is known about their contribution to ecosystem carbon, water, and energy exchange. We studied the role of mosses in boreal forest evapotranspiration by conducting two experiments in a black spruce forest in Fairbanks, Alaska. Moss evaporation was measured using lysimeters filled with Hylocomium splendens or Sphagnum capillifolium. Microclimate and moisture content were varied by placing the lysimeters in different habitats ( dense forest, open forest, bog), and by manipulating the water supply (no water, natural rainfall, water added). Moss evaporation rates between 1 June and 8 September averaged 0.3, 0.9, and 1.5 mm day(-1) in the dense forest (Hylocomium), open forest (Hylocomium and Sphagnum), and bog ( Sphagnum) respectively. Assuming a total forest evapotranspiration rate of 2 mm day(-1), this study shows that moss evaporation contributes considerably to boreal black spruce forest evapotranspiration. Moss evaporation rates depended strongly on the openness of the forest and to a lesser degree on the density of the vascular plant canopy and on moss species. The strong influence of habitat suggests that microclimate is the primary factor determining moss evaporation rates. Hylocomium evaporation reacted strongly to experimental water additions, indicating that precipitation frequency is an important factor in addition to microclimate for this species. The large moss evaporation rates in this study suggest a potential cooling effect of mosses, of Sphagnum in particular. Article in Journal/Newspaper Arctic Climate change Tundra Alaska Wageningen UR (University & Research Centre): Digital Library Arctic Fairbanks Global Biogeochemical Cycles 18 2 n/a n/a |
institution |
Open Polar |
collection |
Wageningen UR (University & Research Centre): Digital Library |
op_collection_id |
ftunivwagenin |
language |
English |
topic |
arctic tundra carbon balance climate-change energy-exchange evapotranspiration hylocomium-splendens polytrichum-commune sphagnum surface water-content |
spellingShingle |
arctic tundra carbon balance climate-change energy-exchange evapotranspiration hylocomium-splendens polytrichum-commune sphagnum surface water-content Heijmans, M.M.P.D. Arp, W.J. Chapin, F.S. Controls on moss evaporation in a boreal black spruce forest |
topic_facet |
arctic tundra carbon balance climate-change energy-exchange evapotranspiration hylocomium-splendens polytrichum-commune sphagnum surface water-content |
description |
[1] Mosses are an important component of the boreal forest, but little is known about their contribution to ecosystem carbon, water, and energy exchange. We studied the role of mosses in boreal forest evapotranspiration by conducting two experiments in a black spruce forest in Fairbanks, Alaska. Moss evaporation was measured using lysimeters filled with Hylocomium splendens or Sphagnum capillifolium. Microclimate and moisture content were varied by placing the lysimeters in different habitats ( dense forest, open forest, bog), and by manipulating the water supply (no water, natural rainfall, water added). Moss evaporation rates between 1 June and 8 September averaged 0.3, 0.9, and 1.5 mm day(-1) in the dense forest (Hylocomium), open forest (Hylocomium and Sphagnum), and bog ( Sphagnum) respectively. Assuming a total forest evapotranspiration rate of 2 mm day(-1), this study shows that moss evaporation contributes considerably to boreal black spruce forest evapotranspiration. Moss evaporation rates depended strongly on the openness of the forest and to a lesser degree on the density of the vascular plant canopy and on moss species. The strong influence of habitat suggests that microclimate is the primary factor determining moss evaporation rates. Hylocomium evaporation reacted strongly to experimental water additions, indicating that precipitation frequency is an important factor in addition to microclimate for this species. The large moss evaporation rates in this study suggest a potential cooling effect of mosses, of Sphagnum in particular. |
format |
Article in Journal/Newspaper |
author |
Heijmans, M.M.P.D. Arp, W.J. Chapin, F.S. |
author_facet |
Heijmans, M.M.P.D. Arp, W.J. Chapin, F.S. |
author_sort |
Heijmans, M.M.P.D. |
title |
Controls on moss evaporation in a boreal black spruce forest |
title_short |
Controls on moss evaporation in a boreal black spruce forest |
title_full |
Controls on moss evaporation in a boreal black spruce forest |
title_fullStr |
Controls on moss evaporation in a boreal black spruce forest |
title_full_unstemmed |
Controls on moss evaporation in a boreal black spruce forest |
title_sort |
controls on moss evaporation in a boreal black spruce forest |
publishDate |
2004 |
url |
https://research.wur.nl/en/publications/controls-on-moss-evaporation-in-a-boreal-black-spruce-forest https://doi.org/10.1029/2003GB002128 |
geographic |
Arctic Fairbanks |
geographic_facet |
Arctic Fairbanks |
genre |
Arctic Climate change Tundra Alaska |
genre_facet |
Arctic Climate change Tundra Alaska |
op_source |
Global Biogeochemical Cycles 18 (2004) 2 ISSN: 0886-6236 |
op_relation |
https://edepot.wur.nl/40669 https://research.wur.nl/en/publications/controls-on-moss-evaporation-in-a-boreal-black-spruce-forest doi:10.1029/2003GB002128 |
op_rights |
info:eu-repo/semantics/openAccess Wageningen University & Research |
op_doi |
https://doi.org/10.1029/2003GB002128 |
container_title |
Global Biogeochemical Cycles |
container_volume |
18 |
container_issue |
2 |
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