Physical and chemical characteristics of the active layer and permafrost, Herschel Island, western Arctic Coast, Canada
Physical and geochemical characteristics of near-surface permafrost and the impact of permafrost degradation on soil and water chemistry were investigated at five sites on Herschel Island, Yukon Territory. The distribution of soluble cations, moisture and organic matter content in turbic cryosols fr...
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Language: | English |
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Online Access: | https://ir.library.carleton.ca/pub/1796 https://doi.org/10.1002/ppp.417 |
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ftcarletonunivir:oai:carleton.ca:1796 2023-05-15T15:07:36+02:00 Physical and chemical characteristics of the active layer and permafrost, Herschel Island, western Arctic Coast, Canada Kokelj, S.V. (S. V.) Smith, C.A.S. (C. A.S.) Burn, C. (Christopher R.) 2002-07-20 https://ir.library.carleton.ca/pub/1796 https://doi.org/10.1002/ppp.417 en eng https://ir.library.carleton.ca/pub/1796 doi:10.1002/ppp.417 Permafrost and Periglacial Processes vol. 13 no. 2, pp. 171-185 Aggradational ice Cryosols Herschel Island Palaeoactive layer Permafrost Soil chemistry Thaw unconformity info:eu-repo/semantics/article 2002 ftcarletonunivir https://doi.org/10.1002/ppp.417 2022-02-06T21:52:07Z Physical and geochemical characteristics of near-surface permafrost and the impact of permafrost degradation on soil and water chemistry were investigated at five sites on Herschel Island, Yukon Territory. The distribution of soluble cations, moisture and organic matter content in turbic cryosols from undisturbed terrain indicated a thaw unconformity 50 to 80 cm below the base of the present active layer. Palaeoactive-layer depth, estimated at between 90 and 100 cm, is less than at comparable sites in the Mackenzie Delta area. The difference may be due to the comparative proximity of Herschel Island to the Beaufort Sea coastline in the early Holocene. Soluble cations in permafrost and the active layer of static cryosols at recently disturbed sites were two orders of magnitude higher than in the active layer at undisturbed sites. Na+ was the dominant cation in undisturbed permafrost, recently disturbed ground, and surface runoff derived from disturbed areas. Although degradation of permafrost following terrain disturbance has resulted in surface salinization, a condition detrimental to vegetation growth, leaching of soluble salts from disturbed areas has occurred over time. These processes have produced a range of soil conditions that contribute to the floristic diversity of Herschel Island. Copyright Article in Journal/Newspaper Arctic Beaufort Sea Herschel Herschel Island Ice Mackenzie Delta permafrost Permafrost and Periglacial Processes Yukon Carleton University's Institutional Repository Arctic Yukon Canada Mackenzie Delta ENVELOPE(-136.672,-136.672,68.833,68.833) Herschel Island ENVELOPE(-139.089,-139.089,69.583,69.583) Permafrost and Periglacial Processes 13 2 171 185 |
institution |
Open Polar |
collection |
Carleton University's Institutional Repository |
op_collection_id |
ftcarletonunivir |
language |
English |
topic |
Aggradational ice Cryosols Herschel Island Palaeoactive layer Permafrost Soil chemistry Thaw unconformity |
spellingShingle |
Aggradational ice Cryosols Herschel Island Palaeoactive layer Permafrost Soil chemistry Thaw unconformity Kokelj, S.V. (S. V.) Smith, C.A.S. (C. A.S.) Burn, C. (Christopher R.) Physical and chemical characteristics of the active layer and permafrost, Herschel Island, western Arctic Coast, Canada |
topic_facet |
Aggradational ice Cryosols Herschel Island Palaeoactive layer Permafrost Soil chemistry Thaw unconformity |
description |
Physical and geochemical characteristics of near-surface permafrost and the impact of permafrost degradation on soil and water chemistry were investigated at five sites on Herschel Island, Yukon Territory. The distribution of soluble cations, moisture and organic matter content in turbic cryosols from undisturbed terrain indicated a thaw unconformity 50 to 80 cm below the base of the present active layer. Palaeoactive-layer depth, estimated at between 90 and 100 cm, is less than at comparable sites in the Mackenzie Delta area. The difference may be due to the comparative proximity of Herschel Island to the Beaufort Sea coastline in the early Holocene. Soluble cations in permafrost and the active layer of static cryosols at recently disturbed sites were two orders of magnitude higher than in the active layer at undisturbed sites. Na+ was the dominant cation in undisturbed permafrost, recently disturbed ground, and surface runoff derived from disturbed areas. Although degradation of permafrost following terrain disturbance has resulted in surface salinization, a condition detrimental to vegetation growth, leaching of soluble salts from disturbed areas has occurred over time. These processes have produced a range of soil conditions that contribute to the floristic diversity of Herschel Island. Copyright |
format |
Article in Journal/Newspaper |
author |
Kokelj, S.V. (S. V.) Smith, C.A.S. (C. A.S.) Burn, C. (Christopher R.) |
author_facet |
Kokelj, S.V. (S. V.) Smith, C.A.S. (C. A.S.) Burn, C. (Christopher R.) |
author_sort |
Kokelj, S.V. (S. V.) |
title |
Physical and chemical characteristics of the active layer and permafrost, Herschel Island, western Arctic Coast, Canada |
title_short |
Physical and chemical characteristics of the active layer and permafrost, Herschel Island, western Arctic Coast, Canada |
title_full |
Physical and chemical characteristics of the active layer and permafrost, Herschel Island, western Arctic Coast, Canada |
title_fullStr |
Physical and chemical characteristics of the active layer and permafrost, Herschel Island, western Arctic Coast, Canada |
title_full_unstemmed |
Physical and chemical characteristics of the active layer and permafrost, Herschel Island, western Arctic Coast, Canada |
title_sort |
physical and chemical characteristics of the active layer and permafrost, herschel island, western arctic coast, canada |
publishDate |
2002 |
url |
https://ir.library.carleton.ca/pub/1796 https://doi.org/10.1002/ppp.417 |
long_lat |
ENVELOPE(-136.672,-136.672,68.833,68.833) ENVELOPE(-139.089,-139.089,69.583,69.583) |
geographic |
Arctic Yukon Canada Mackenzie Delta Herschel Island |
geographic_facet |
Arctic Yukon Canada Mackenzie Delta Herschel Island |
genre |
Arctic Beaufort Sea Herschel Herschel Island Ice Mackenzie Delta permafrost Permafrost and Periglacial Processes Yukon |
genre_facet |
Arctic Beaufort Sea Herschel Herschel Island Ice Mackenzie Delta permafrost Permafrost and Periglacial Processes Yukon |
op_source |
Permafrost and Periglacial Processes vol. 13 no. 2, pp. 171-185 |
op_relation |
https://ir.library.carleton.ca/pub/1796 doi:10.1002/ppp.417 |
op_doi |
https://doi.org/10.1002/ppp.417 |
container_title |
Permafrost and Periglacial Processes |
container_volume |
13 |
container_issue |
2 |
container_start_page |
171 |
op_container_end_page |
185 |
_version_ |
1766339074233204736 |