Degrading permafrost river catchments and their impact on Arctic Ocean nearshore processes
Abstract Arctic warming is causing ancient perennially frozen ground (permafrost) to thaw, resulting in ground collapse, and reshaping of landscapes. This threatens Arctic peoples' infrastructure, cultural sites, and land-based natural resources. Terrestrial permafrost thaw and ongoing intensif...
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2021
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Online Access: | http://dx.doi.org/10.1007/s13280-021-01666-z https://link.springer.com/content/pdf/10.1007/s13280-021-01666-z.pdf https://link.springer.com/article/10.1007/s13280-021-01666-z/fulltext.html |
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crspringernat:10.1007/s13280-021-01666-z 2023-05-15T14:38:17+02:00 Degrading permafrost river catchments and their impact on Arctic Ocean nearshore processes Mann, Paul J. Strauss, Jens Palmtag, Juri Dowdy, Kelsey Ogneva, Olga Fuchs, Matthias Bedington, Michael Torres, Ricardo Polimene, Luca Overduin, Paul Mollenhauer, Gesine Grosse, Guido Rachold, Volker Sobczak, William V. Spencer, Robert G. M. Juhls, Bennet Natural Environment Research Council BMBF National Science Foundation 2021 http://dx.doi.org/10.1007/s13280-021-01666-z https://link.springer.com/content/pdf/10.1007/s13280-021-01666-z.pdf https://link.springer.com/article/10.1007/s13280-021-01666-z/fulltext.html en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Ambio volume 51, issue 2, page 439-455 ISSN 0044-7447 1654-7209 Ecology Environmental Chemistry Geography, Planning and Development General Medicine journal-article 2021 crspringernat https://doi.org/10.1007/s13280-021-01666-z 2022-01-04T15:56:33Z Abstract Arctic warming is causing ancient perennially frozen ground (permafrost) to thaw, resulting in ground collapse, and reshaping of landscapes. This threatens Arctic peoples' infrastructure, cultural sites, and land-based natural resources. Terrestrial permafrost thaw and ongoing intensification of hydrological cycles also enhance the amount and alter the type of organic carbon (OC) delivered from land to Arctic nearshore environments. These changes may affect coastal processes, food web dynamics and marine resources on which many traditional ways of life rely. Here, we examine how future projected increases in runoff and permafrost thaw from two permafrost-dominated Siberian watersheds—the Kolyma and Lena, may alter carbon turnover rates and OC distributions through river networks. We demonstrate that the unique composition of terrestrial permafrost-derived OC can cause significant increases to aquatic carbon degradation rates (20 to 60% faster rates with 1% permafrost OC). We compile results on aquatic OC degradation and examine how strengthening Arctic hydrological cycles may increase the connectivity between terrestrial landscapes and receiving nearshore ecosystems, with potential ramifications for coastal carbon budgets and ecosystem structure. To address the future challenges Arctic coastal communities will face, we argue that it will become essential to consider how nearshore ecosystems will respond to changing coastal inputs and identify how these may affect the resiliency and availability of essential food resources. Article in Journal/Newspaper Arctic Arctic Ocean permafrost Springer Nature (via Crossref) Arctic Arctic Ocean Kolyma ENVELOPE(161.000,161.000,69.500,69.500) Ambio 51 2 439 455 |
institution |
Open Polar |
collection |
Springer Nature (via Crossref) |
op_collection_id |
crspringernat |
language |
English |
topic |
Ecology Environmental Chemistry Geography, Planning and Development General Medicine |
spellingShingle |
Ecology Environmental Chemistry Geography, Planning and Development General Medicine Mann, Paul J. Strauss, Jens Palmtag, Juri Dowdy, Kelsey Ogneva, Olga Fuchs, Matthias Bedington, Michael Torres, Ricardo Polimene, Luca Overduin, Paul Mollenhauer, Gesine Grosse, Guido Rachold, Volker Sobczak, William V. Spencer, Robert G. M. Juhls, Bennet Degrading permafrost river catchments and their impact on Arctic Ocean nearshore processes |
topic_facet |
Ecology Environmental Chemistry Geography, Planning and Development General Medicine |
description |
Abstract Arctic warming is causing ancient perennially frozen ground (permafrost) to thaw, resulting in ground collapse, and reshaping of landscapes. This threatens Arctic peoples' infrastructure, cultural sites, and land-based natural resources. Terrestrial permafrost thaw and ongoing intensification of hydrological cycles also enhance the amount and alter the type of organic carbon (OC) delivered from land to Arctic nearshore environments. These changes may affect coastal processes, food web dynamics and marine resources on which many traditional ways of life rely. Here, we examine how future projected increases in runoff and permafrost thaw from two permafrost-dominated Siberian watersheds—the Kolyma and Lena, may alter carbon turnover rates and OC distributions through river networks. We demonstrate that the unique composition of terrestrial permafrost-derived OC can cause significant increases to aquatic carbon degradation rates (20 to 60% faster rates with 1% permafrost OC). We compile results on aquatic OC degradation and examine how strengthening Arctic hydrological cycles may increase the connectivity between terrestrial landscapes and receiving nearshore ecosystems, with potential ramifications for coastal carbon budgets and ecosystem structure. To address the future challenges Arctic coastal communities will face, we argue that it will become essential to consider how nearshore ecosystems will respond to changing coastal inputs and identify how these may affect the resiliency and availability of essential food resources. |
author2 |
Natural Environment Research Council BMBF National Science Foundation |
format |
Article in Journal/Newspaper |
author |
Mann, Paul J. Strauss, Jens Palmtag, Juri Dowdy, Kelsey Ogneva, Olga Fuchs, Matthias Bedington, Michael Torres, Ricardo Polimene, Luca Overduin, Paul Mollenhauer, Gesine Grosse, Guido Rachold, Volker Sobczak, William V. Spencer, Robert G. M. Juhls, Bennet |
author_facet |
Mann, Paul J. Strauss, Jens Palmtag, Juri Dowdy, Kelsey Ogneva, Olga Fuchs, Matthias Bedington, Michael Torres, Ricardo Polimene, Luca Overduin, Paul Mollenhauer, Gesine Grosse, Guido Rachold, Volker Sobczak, William V. Spencer, Robert G. M. Juhls, Bennet |
author_sort |
Mann, Paul J. |
title |
Degrading permafrost river catchments and their impact on Arctic Ocean nearshore processes |
title_short |
Degrading permafrost river catchments and their impact on Arctic Ocean nearshore processes |
title_full |
Degrading permafrost river catchments and their impact on Arctic Ocean nearshore processes |
title_fullStr |
Degrading permafrost river catchments and their impact on Arctic Ocean nearshore processes |
title_full_unstemmed |
Degrading permafrost river catchments and their impact on Arctic Ocean nearshore processes |
title_sort |
degrading permafrost river catchments and their impact on arctic ocean nearshore processes |
publisher |
Springer Science and Business Media LLC |
publishDate |
2021 |
url |
http://dx.doi.org/10.1007/s13280-021-01666-z https://link.springer.com/content/pdf/10.1007/s13280-021-01666-z.pdf https://link.springer.com/article/10.1007/s13280-021-01666-z/fulltext.html |
long_lat |
ENVELOPE(161.000,161.000,69.500,69.500) |
geographic |
Arctic Arctic Ocean Kolyma |
geographic_facet |
Arctic Arctic Ocean Kolyma |
genre |
Arctic Arctic Ocean permafrost |
genre_facet |
Arctic Arctic Ocean permafrost |
op_source |
Ambio volume 51, issue 2, page 439-455 ISSN 0044-7447 1654-7209 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1007/s13280-021-01666-z |
container_title |
Ambio |
container_volume |
51 |
container_issue |
2 |
container_start_page |
439 |
op_container_end_page |
455 |
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1766310394105692160 |