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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ftubpotsdam:oai:kobv.de-opus4-uni-potsdam:42313 2023-05-15T14:31:25+02:00 Reduced arctic tundra productivity linked with landform and climate change interactions Lara, Mark J. Nitze, Ingmar (Dr.) Grosse, Guido (Prof. Dr.) Martin, Philip McGuire, A. David 2019-01-25 application/pdf https://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/42313 https://nbn-resolving.org/urn:nbn:de:kobv:517-opus4-423132 https://doi.org/10.25932/publishup-42313 https://publishup.uni-potsdam.de/opus4-ubp/files/42313/pmnr550.pdf eng eng https://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/42313 urn:nbn:de:kobv:517-opus4-423132 https://nbn-resolving.org/urn:nbn:de:kobv:517-opus4-423132 https://doi.org/10.25932/publishup-42313 https://publishup.uni-potsdam.de/opus4-ubp/files/42313/pmnr550.pdf https://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess CC-BY ddc:500 ddc:600 Mathematisch-Naturwissenschaftliche Fakultät postprint doc-type:article 2019 ftubpotsdam https://doi.org/10.25932/publishup-42313 2022-08-21T22:35:28Z 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 (similar to 60,000 km(2)) 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 Greening Arctic Climate change permafrost Tundra Alaska University of Potsdam: publish.UP Arctic Browning ENVELOPE(164.050,164.050,-74.617,-74.617) |
institution |
Open Polar |
collection |
University of Potsdam: publish.UP |
op_collection_id |
ftubpotsdam |
language |
English |
topic |
ddc:500 ddc:600 Mathematisch-Naturwissenschaftliche Fakultät |
spellingShingle |
ddc:500 ddc:600 Mathematisch-Naturwissenschaftliche Fakultät Lara, Mark J. Nitze, Ingmar (Dr.) Grosse, Guido (Prof. Dr.) Martin, Philip McGuire, A. David Reduced arctic tundra productivity linked with landform and climate change interactions |
topic_facet |
ddc:500 ddc:600 Mathematisch-Naturwissenschaftliche Fakultät |
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 (similar to 60,000 km(2)) 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 (Dr.) Grosse, Guido (Prof. Dr.) Martin, Philip McGuire, A. David |
author_facet |
Lara, Mark J. Nitze, Ingmar (Dr.) Grosse, Guido (Prof. Dr.) 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 |
publishDate |
2019 |
url |
https://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/42313 https://nbn-resolving.org/urn:nbn:de:kobv:517-opus4-423132 https://doi.org/10.25932/publishup-42313 https://publishup.uni-potsdam.de/opus4-ubp/files/42313/pmnr550.pdf |
long_lat |
ENVELOPE(164.050,164.050,-74.617,-74.617) |
geographic |
Arctic Browning |
geographic_facet |
Arctic Browning |
genre |
Arctic Greening Arctic Climate change permafrost Tundra Alaska |
genre_facet |
Arctic Greening Arctic Climate change permafrost Tundra Alaska |
op_relation |
https://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/42313 urn:nbn:de:kobv:517-opus4-423132 https://nbn-resolving.org/urn:nbn:de:kobv:517-opus4-423132 https://doi.org/10.25932/publishup-42313 https://publishup.uni-potsdam.de/opus4-ubp/files/42313/pmnr550.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.25932/publishup-42313 |
_version_ |
1766305057265942528 |