Reduced arctic tundra productivity linked with landform and climate change interactions
Arctic tundra ecosystems have experienced unprecedented change associated with climate warming over recent decades. Across the Pan-Arctic, vegetation productivity and surface greenness have trended positively over the period of satellite observation. However, since 2011 these trends have slowed cons...
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Online Access: | https://epic.awi.de/id/eprint/46942/ https://epic.awi.de/id/eprint/46942/1/Lara_et_al_2018a_SciRep.pdf https://doi.org/10.1038/s41598-018-20692-8 https://hdl.handle.net/10013/epic.51d2716f-971b-4453-83f2-00f6ad7ed1a9 https://hdl.handle.net/ |
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ftawi:oai:epic.awi.de:46942 2023-05-15T14:27:32+02:00 Reduced arctic tundra productivity linked with landform and climate change interactions Lara, Mark J. Nitze, Ingmar Grosse, Guido Martin, Philip McGuire, A. David 2018-02-05 application/pdf https://epic.awi.de/id/eprint/46942/ https://epic.awi.de/id/eprint/46942/1/Lara_et_al_2018a_SciRep.pdf https://doi.org/10.1038/s41598-018-20692-8 https://hdl.handle.net/10013/epic.51d2716f-971b-4453-83f2-00f6ad7ed1a9 https://hdl.handle.net/ unknown Springer Nature https://epic.awi.de/id/eprint/46942/1/Lara_et_al_2018a_SciRep.pdf https://hdl.handle.net/ Lara, M. J. , Nitze, I. orcid:0000-0002-1165-6852 , Grosse, G. orcid:0000-0001-5895-2141 , Martin, P. and McGuire, A. D. (2018) Reduced arctic tundra productivity linked with landform and climate change interactions , Scientific Reports, 8 (1), p. 2345 . doi:10.1038/s41598-018-20692-8 <https://doi.org/10.1038/s41598-018-20692-8> , hdl:10013/epic.51d2716f-971b-4453-83f2-00f6ad7ed1a9 info:eu-repo/semantics/openAccess EPIC3Scientific Reports, Springer Nature, 8(1), pp. 2345, ISSN: 2045-2322 Article isiRev info:eu-repo/semantics/article 2018 ftawi https://doi.org/10.1038/s41598-018-20692-8 2021-12-24T15:43:47Z Arctic tundra ecosystems have experienced unprecedented change associated with climate warming over recent decades. Across the Pan-Arctic, vegetation productivity and surface greenness have trended positively over the period of satellite observation. However, since 2011 these trends have slowed considerably, showing signs of browning in many regions. It is unclear what factors are driving this change and which regions/landforms will be most sensitive to future browning. Here we provide evidence linking decadal patterns in arctic greening and browning with regional climate change and local permafrost-driven landscape heterogeneity. We analyzed the spatial variability of decadal-scale trends in surface greenness across the Arctic Coastal Plain of northern Alaska (~60,000 km²) using the Landsat archive (1999–2014), in combination with novel 30 m classifications of polygonal tundra and regional watersheds, finding landscape heterogeneity and regional climate change to be the most important factors controlling historical greenness trends. Browning was linked to increased temperature and precipitation, with the exception of young landforms (developed following lake drainage), which will likely continue to green. Spatiotemporal model forecasting suggests carbon uptake potential to be reduced in response to warmer and/or wetter climatic conditions, potentially increasing the net loss of carbon to the atmosphere, at a greater degree than previously expected. Article in Journal/Newspaper Arctic Arctic Greening Arctic Climate change permafrost Tundra Alaska Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Browning ENVELOPE(164.050,164.050,-74.617,-74.617) Scientific Reports 8 1 |
institution |
Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Arctic tundra ecosystems have experienced unprecedented change associated with climate warming over recent decades. Across the Pan-Arctic, vegetation productivity and surface greenness have trended positively over the period of satellite observation. However, since 2011 these trends have slowed considerably, showing signs of browning in many regions. It is unclear what factors are driving this change and which regions/landforms will be most sensitive to future browning. Here we provide evidence linking decadal patterns in arctic greening and browning with regional climate change and local permafrost-driven landscape heterogeneity. We analyzed the spatial variability of decadal-scale trends in surface greenness across the Arctic Coastal Plain of northern Alaska (~60,000 km²) using the Landsat archive (1999–2014), in combination with novel 30 m classifications of polygonal tundra and regional watersheds, finding landscape heterogeneity and regional climate change to be the most important factors controlling historical greenness trends. Browning was linked to increased temperature and precipitation, with the exception of young landforms (developed following lake drainage), which will likely continue to green. Spatiotemporal model forecasting suggests carbon uptake potential to be reduced in response to warmer and/or wetter climatic conditions, potentially increasing the net loss of carbon to the atmosphere, at a greater degree than previously expected. |
format |
Article in Journal/Newspaper |
author |
Lara, Mark J. Nitze, Ingmar Grosse, Guido Martin, Philip McGuire, A. David |
spellingShingle |
Lara, Mark J. Nitze, Ingmar Grosse, Guido Martin, Philip McGuire, A. David Reduced arctic tundra productivity linked with landform and climate change interactions |
author_facet |
Lara, Mark J. Nitze, Ingmar Grosse, Guido Martin, Philip McGuire, A. David |
author_sort |
Lara, Mark J. |
title |
Reduced arctic tundra productivity linked with landform and climate change interactions |
title_short |
Reduced arctic tundra productivity linked with landform and climate change interactions |
title_full |
Reduced arctic tundra productivity linked with landform and climate change interactions |
title_fullStr |
Reduced arctic tundra productivity linked with landform and climate change interactions |
title_full_unstemmed |
Reduced arctic tundra productivity linked with landform and climate change interactions |
title_sort |
reduced arctic tundra productivity linked with landform and climate change interactions |
publisher |
Springer Nature |
publishDate |
2018 |
url |
https://epic.awi.de/id/eprint/46942/ https://epic.awi.de/id/eprint/46942/1/Lara_et_al_2018a_SciRep.pdf https://doi.org/10.1038/s41598-018-20692-8 https://hdl.handle.net/10013/epic.51d2716f-971b-4453-83f2-00f6ad7ed1a9 https://hdl.handle.net/ |
long_lat |
ENVELOPE(164.050,164.050,-74.617,-74.617) |
geographic |
Arctic Browning |
geographic_facet |
Arctic Browning |
genre |
Arctic Arctic Greening Arctic Climate change permafrost Tundra Alaska |
genre_facet |
Arctic Arctic Greening Arctic Climate change permafrost Tundra Alaska |
op_source |
EPIC3Scientific Reports, Springer Nature, 8(1), pp. 2345, ISSN: 2045-2322 |
op_relation |
https://epic.awi.de/id/eprint/46942/1/Lara_et_al_2018a_SciRep.pdf https://hdl.handle.net/ Lara, M. J. , Nitze, I. orcid:0000-0002-1165-6852 , Grosse, G. orcid:0000-0001-5895-2141 , Martin, P. and McGuire, A. D. (2018) Reduced arctic tundra productivity linked with landform and climate change interactions , Scientific Reports, 8 (1), p. 2345 . doi:10.1038/s41598-018-20692-8 <https://doi.org/10.1038/s41598-018-20692-8> , hdl:10013/epic.51d2716f-971b-4453-83f2-00f6ad7ed1a9 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s41598-018-20692-8 |
container_title |
Scientific Reports |
container_volume |
8 |
container_issue |
1 |
_version_ |
1766301318708723712 |