Land cover and landform-based upscaling of soil organic carbon stocks on the Brøgger Peninsula, Svalbard
In this study we assess the total storage, landscape distribution, and vertical partitioning of soil organic carbon (SOC) stocks on the Brøgger Peninsula, Svalbard. This type of high Arctic area is underrepresented in SOC databases for the northern permafrost region. Physico-chemical, elemental, and...
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ftdoajarticles:oai:doaj.org/article:ca411af1de8149b299372c90c196ac35 2023-05-15T14:14:33+02:00 Land cover and landform-based upscaling of soil organic carbon stocks on the Brøgger Peninsula, Svalbard Robin Wojcik Juri Palmtag Gustaf Hugelius Niels Weiss Peter Kuhry 2019-01-01T00:00:00Z https://doi.org/10.1080/15230430.2019.1570784 https://doaj.org/article/ca411af1de8149b299372c90c196ac35 EN eng Taylor & Francis Group http://dx.doi.org/10.1080/15230430.2019.1570784 https://doaj.org/toc/1523-0430 https://doaj.org/toc/1938-4246 1523-0430 1938-4246 doi:10.1080/15230430.2019.1570784 https://doaj.org/article/ca411af1de8149b299372c90c196ac35 Arctic, Antarctic, and Alpine Research, Vol 51, Iss 1, Pp 40-57 (2019) permafrost-carbon feedback soil organic carbon land cover upscaling landform upscaling high arctic Environmental sciences GE1-350 Ecology QH540-549.5 article 2019 ftdoajarticles https://doi.org/10.1080/15230430.2019.1570784 2022-12-31T11:10:50Z In this study we assess the total storage, landscape distribution, and vertical partitioning of soil organic carbon (SOC) stocks on the Brøgger Peninsula, Svalbard. This type of high Arctic area is underrepresented in SOC databases for the northern permafrost region. Physico-chemical, elemental, and radiocarbon (14C) dating analyses were carried out on thirty-two soil profiles. Results were upscaled using both a land cover classification (LCC) and a landform classification (LFC). Both LCC and LFC approaches provide weighted mean SOC 0–100 cm estimates for the study area of 1.0 ± 0.3 kg C m−2 (95% confidence interval) and indicate that about 68 percent of the total SOC storage occurs in the upper 30 cm of the soil, and about 10 percent occurs in the surface organic layer. Furthermore, LCC and LFC upscaling approaches provide similar spatial SOC allocation estimates and emphasize the dominant role of “vegetated area” (4.2 ± 1.6 kg C m−2) and “solifluction slopes” (6.7 ± 3.6 kg C m−2) in SOC 0–100 cm storage. LCC and LFC approaches report different and complementary information on the dominant processes controlling the spatial and vertical distribution of SOC in the landscape. There is no evidence for any significant SOC storage in the permafrost layer. We hypothesize, therefore, that the Brøgger Peninsula and similar areas of the high Arctic will become net carbon sinks, providing negative feedback on global warming in the future. The surface area that will have vegetation cover and incipient soil development will expand, whereas only small amounts of organic matter will experience increased decomposition due to active-layer deepening. Article in Journal/Newspaper Antarctic and Alpine Research Arctic Arctic Global warming permafrost Svalbard Directory of Open Access Journals: DOAJ Articles Arctic Svalbard Arctic, Antarctic, and Alpine Research 51 1 40 57 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
permafrost-carbon feedback soil organic carbon land cover upscaling landform upscaling high arctic Environmental sciences GE1-350 Ecology QH540-549.5 |
spellingShingle |
permafrost-carbon feedback soil organic carbon land cover upscaling landform upscaling high arctic Environmental sciences GE1-350 Ecology QH540-549.5 Robin Wojcik Juri Palmtag Gustaf Hugelius Niels Weiss Peter Kuhry Land cover and landform-based upscaling of soil organic carbon stocks on the Brøgger Peninsula, Svalbard |
topic_facet |
permafrost-carbon feedback soil organic carbon land cover upscaling landform upscaling high arctic Environmental sciences GE1-350 Ecology QH540-549.5 |
description |
In this study we assess the total storage, landscape distribution, and vertical partitioning of soil organic carbon (SOC) stocks on the Brøgger Peninsula, Svalbard. This type of high Arctic area is underrepresented in SOC databases for the northern permafrost region. Physico-chemical, elemental, and radiocarbon (14C) dating analyses were carried out on thirty-two soil profiles. Results were upscaled using both a land cover classification (LCC) and a landform classification (LFC). Both LCC and LFC approaches provide weighted mean SOC 0–100 cm estimates for the study area of 1.0 ± 0.3 kg C m−2 (95% confidence interval) and indicate that about 68 percent of the total SOC storage occurs in the upper 30 cm of the soil, and about 10 percent occurs in the surface organic layer. Furthermore, LCC and LFC upscaling approaches provide similar spatial SOC allocation estimates and emphasize the dominant role of “vegetated area” (4.2 ± 1.6 kg C m−2) and “solifluction slopes” (6.7 ± 3.6 kg C m−2) in SOC 0–100 cm storage. LCC and LFC approaches report different and complementary information on the dominant processes controlling the spatial and vertical distribution of SOC in the landscape. There is no evidence for any significant SOC storage in the permafrost layer. We hypothesize, therefore, that the Brøgger Peninsula and similar areas of the high Arctic will become net carbon sinks, providing negative feedback on global warming in the future. The surface area that will have vegetation cover and incipient soil development will expand, whereas only small amounts of organic matter will experience increased decomposition due to active-layer deepening. |
format |
Article in Journal/Newspaper |
author |
Robin Wojcik Juri Palmtag Gustaf Hugelius Niels Weiss Peter Kuhry |
author_facet |
Robin Wojcik Juri Palmtag Gustaf Hugelius Niels Weiss Peter Kuhry |
author_sort |
Robin Wojcik |
title |
Land cover and landform-based upscaling of soil organic carbon stocks on the Brøgger Peninsula, Svalbard |
title_short |
Land cover and landform-based upscaling of soil organic carbon stocks on the Brøgger Peninsula, Svalbard |
title_full |
Land cover and landform-based upscaling of soil organic carbon stocks on the Brøgger Peninsula, Svalbard |
title_fullStr |
Land cover and landform-based upscaling of soil organic carbon stocks on the Brøgger Peninsula, Svalbard |
title_full_unstemmed |
Land cover and landform-based upscaling of soil organic carbon stocks on the Brøgger Peninsula, Svalbard |
title_sort |
land cover and landform-based upscaling of soil organic carbon stocks on the brøgger peninsula, svalbard |
publisher |
Taylor & Francis Group |
publishDate |
2019 |
url |
https://doi.org/10.1080/15230430.2019.1570784 https://doaj.org/article/ca411af1de8149b299372c90c196ac35 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Antarctic and Alpine Research Arctic Arctic Global warming permafrost Svalbard |
genre_facet |
Antarctic and Alpine Research Arctic Arctic Global warming permafrost Svalbard |
op_source |
Arctic, Antarctic, and Alpine Research, Vol 51, Iss 1, Pp 40-57 (2019) |
op_relation |
http://dx.doi.org/10.1080/15230430.2019.1570784 https://doaj.org/toc/1523-0430 https://doaj.org/toc/1938-4246 1523-0430 1938-4246 doi:10.1080/15230430.2019.1570784 https://doaj.org/article/ca411af1de8149b299372c90c196ac35 |
op_doi |
https://doi.org/10.1080/15230430.2019.1570784 |
container_title |
Arctic, Antarctic, and Alpine Research |
container_volume |
51 |
container_issue |
1 |
container_start_page |
40 |
op_container_end_page |
57 |
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1766286957135003648 |