Water and heat transport in boreal soils: implications for soil response to climate change.
Soil water content strongly affects permafrost dynamics by changing the soil thermal properties. However, the movement of liquid water, which plays an important role in the heat transport of temperate soils, has been under-represented in boreal studies. Two different heat transport models with and w...
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ftcdlib:oai:escholarship.org/ark:/13030/qt40r7c46p 2023-05-15T17:56:50+02:00 Water and heat transport in boreal soils: implications for soil response to climate change. Fan, Zhaosheng Neff, Jason C Harden, Jennifer W Zhang, Tingjun Veldhuis, Hugo Czimczik, Claudia I Winston, Gregory C O'Donnell, Jonathan A 1836 - 1842 2011-04-01 application/pdf https://escholarship.org/uc/item/40r7c46p unknown eScholarship, University of California qt40r7c46p https://escholarship.org/uc/item/40r7c46p public The Science of the total environment, vol 409, iss 10 Soil Environment Cold Climate Fresh Water Water Movements Hot Temperature Climate Change Boreal Carbon Water movement Water vapor Permafrost Environmental Sciences article 2011 ftcdlib 2020-11-01T11:22:20Z Soil water content strongly affects permafrost dynamics by changing the soil thermal properties. However, the movement of liquid water, which plays an important role in the heat transport of temperate soils, has been under-represented in boreal studies. Two different heat transport models with and without convective heat transport were compared to measurements of soil temperatures in four boreal sites with different stand ages and drainage classes. Overall, soil temperatures during the growing season tended to be over-estimated by 2-4°C when movement of liquid water and water vapor was not represented in the model. The role of heat transport in water has broad implications for site responses to warming and suggests reduced vulnerability of permafrost to thaw at drier sites. This result is consistent with field observations of faster thaw in response to warming in wet sites compared to drier sites over the past 30 years in Canadian boreal forests. These results highlight that representation of water flow in heat transport models is important to simulate future soil thermal or permafrost dynamics under a changing climate. Article in Journal/Newspaper permafrost University of California: eScholarship |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Soil Environment Cold Climate Fresh Water Water Movements Hot Temperature Climate Change Boreal Carbon Water movement Water vapor Permafrost Environmental Sciences |
spellingShingle |
Soil Environment Cold Climate Fresh Water Water Movements Hot Temperature Climate Change Boreal Carbon Water movement Water vapor Permafrost Environmental Sciences Fan, Zhaosheng Neff, Jason C Harden, Jennifer W Zhang, Tingjun Veldhuis, Hugo Czimczik, Claudia I Winston, Gregory C O'Donnell, Jonathan A Water and heat transport in boreal soils: implications for soil response to climate change. |
topic_facet |
Soil Environment Cold Climate Fresh Water Water Movements Hot Temperature Climate Change Boreal Carbon Water movement Water vapor Permafrost Environmental Sciences |
description |
Soil water content strongly affects permafrost dynamics by changing the soil thermal properties. However, the movement of liquid water, which plays an important role in the heat transport of temperate soils, has been under-represented in boreal studies. Two different heat transport models with and without convective heat transport were compared to measurements of soil temperatures in four boreal sites with different stand ages and drainage classes. Overall, soil temperatures during the growing season tended to be over-estimated by 2-4°C when movement of liquid water and water vapor was not represented in the model. The role of heat transport in water has broad implications for site responses to warming and suggests reduced vulnerability of permafrost to thaw at drier sites. This result is consistent with field observations of faster thaw in response to warming in wet sites compared to drier sites over the past 30 years in Canadian boreal forests. These results highlight that representation of water flow in heat transport models is important to simulate future soil thermal or permafrost dynamics under a changing climate. |
format |
Article in Journal/Newspaper |
author |
Fan, Zhaosheng Neff, Jason C Harden, Jennifer W Zhang, Tingjun Veldhuis, Hugo Czimczik, Claudia I Winston, Gregory C O'Donnell, Jonathan A |
author_facet |
Fan, Zhaosheng Neff, Jason C Harden, Jennifer W Zhang, Tingjun Veldhuis, Hugo Czimczik, Claudia I Winston, Gregory C O'Donnell, Jonathan A |
author_sort |
Fan, Zhaosheng |
title |
Water and heat transport in boreal soils: implications for soil response to climate change. |
title_short |
Water and heat transport in boreal soils: implications for soil response to climate change. |
title_full |
Water and heat transport in boreal soils: implications for soil response to climate change. |
title_fullStr |
Water and heat transport in boreal soils: implications for soil response to climate change. |
title_full_unstemmed |
Water and heat transport in boreal soils: implications for soil response to climate change. |
title_sort |
water and heat transport in boreal soils: implications for soil response to climate change. |
publisher |
eScholarship, University of California |
publishDate |
2011 |
url |
https://escholarship.org/uc/item/40r7c46p |
op_coverage |
1836 - 1842 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
The Science of the total environment, vol 409, iss 10 |
op_relation |
qt40r7c46p https://escholarship.org/uc/item/40r7c46p |
op_rights |
public |
_version_ |
1766165123049717760 |