1360 Resilience of Alaska’s boreal forest to climatic
Abstract: This paper assesses the resilience of Alaska’s boreal forest system to rapid climatic change. Recent warming is associated with reduced growth of dominant tree species, plant disease and insect outbreaks, warming and thawing of permafrost, drying of lakes, increased wildfire extent, increa...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.419.9539 2023-05-15T16:37:41+02:00 1360 Resilience of Alaska’s boreal forest to climatic The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.419.9539 http://www.lter.uaf.edu/pdf/1463_Chapin_McGuire_2010.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.419.9539 http://www.lter.uaf.edu/pdf/1463_Chapin_McGuire_2010.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.lter.uaf.edu/pdf/1463_Chapin_McGuire_2010.pdf text ftciteseerx 2016-01-08T03:54:40Z Abstract: This paper assesses the resilience of Alaska’s boreal forest system to rapid climatic change. Recent warming is associated with reduced growth of dominant tree species, plant disease and insect outbreaks, warming and thawing of permafrost, drying of lakes, increased wildfire extent, increased postfire recruitment of deciduous trees, and reduced safety of hunters traveling on river ice. These changes have modified key structural features, feedbacks, and interactions in the boreal forest, including reduced effects of upland permafrost on regional hydrology, expansion of boreal forest into tundra, and amplification of climate warming because of reduced albedo (shorter winter season) and carbon release from wildfires. Other temperature-sensitive processes for which no trends have been detected include composition of plant and microbial communities, long-term landscape-scale change in carbon stocks, stream discharge, mammalian population dynamics, and river access and subsistence opportunities for rural indigenous communities. Projections of continued warming suggest that Alaska’s boreal forest will undergo significant functional and structural changes within the next few decades that are unprecedented in the last 6000 years. The impact of these social–ecological changes will depend in part on the extent of landscape reorganization between uplands and lowlands and on policies regulating subsistence opportunities for rural communities. Résumé: Cet article évalue la résilience du système forestier boréal de l’Alaska face aux changements rapides du climat. Le réchauffement récent est associé à la réduction de croissance des espèces d’arbre dominantes, aux maladies des plantes et aux épidémies d’insectes, au réchauffement et à la fonte du pergélisol, à l’assèchement des lacs, à l’augmentation de Text Ice permafrost Tundra pergélisol Unknown |
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Abstract: This paper assesses the resilience of Alaska’s boreal forest system to rapid climatic change. Recent warming is associated with reduced growth of dominant tree species, plant disease and insect outbreaks, warming and thawing of permafrost, drying of lakes, increased wildfire extent, increased postfire recruitment of deciduous trees, and reduced safety of hunters traveling on river ice. These changes have modified key structural features, feedbacks, and interactions in the boreal forest, including reduced effects of upland permafrost on regional hydrology, expansion of boreal forest into tundra, and amplification of climate warming because of reduced albedo (shorter winter season) and carbon release from wildfires. Other temperature-sensitive processes for which no trends have been detected include composition of plant and microbial communities, long-term landscape-scale change in carbon stocks, stream discharge, mammalian population dynamics, and river access and subsistence opportunities for rural indigenous communities. Projections of continued warming suggest that Alaska’s boreal forest will undergo significant functional and structural changes within the next few decades that are unprecedented in the last 6000 years. The impact of these social–ecological changes will depend in part on the extent of landscape reorganization between uplands and lowlands and on policies regulating subsistence opportunities for rural communities. Résumé: Cet article évalue la résilience du système forestier boréal de l’Alaska face aux changements rapides du climat. Le réchauffement récent est associé à la réduction de croissance des espèces d’arbre dominantes, aux maladies des plantes et aux épidémies d’insectes, au réchauffement et à la fonte du pergélisol, à l’assèchement des lacs, à l’augmentation de |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
title |
1360 Resilience of Alaska’s boreal forest to climatic |
spellingShingle |
1360 Resilience of Alaska’s boreal forest to climatic |
title_short |
1360 Resilience of Alaska’s boreal forest to climatic |
title_full |
1360 Resilience of Alaska’s boreal forest to climatic |
title_fullStr |
1360 Resilience of Alaska’s boreal forest to climatic |
title_full_unstemmed |
1360 Resilience of Alaska’s boreal forest to climatic |
title_sort |
1360 resilience of alaska’s boreal forest to climatic |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.419.9539 http://www.lter.uaf.edu/pdf/1463_Chapin_McGuire_2010.pdf |
genre |
Ice permafrost Tundra pergélisol |
genre_facet |
Ice permafrost Tundra pergélisol |
op_source |
http://www.lter.uaf.edu/pdf/1463_Chapin_McGuire_2010.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.419.9539 http://www.lter.uaf.edu/pdf/1463_Chapin_McGuire_2010.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766027989921824768 |