Identifying Indicators of State Change and Forecasting Future Vulnerability in Alaskan Boreal Ecosystems
This report summarizes empirical and modeling studies to improve understanding of the mechanistic linkages among fire, vegetation, the soil organic layer, and permafrost thaw across interior Alaska. Primary objectives: (1) Determine mechanistic links among fire, soils, permafrost, and vegetation suc...
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ftdtic:AD1028833 2023-05-15T17:55:30+02:00 Identifying Indicators of State Change and Forecasting Future Vulnerability in Alaskan Boreal Ecosystems Schuur,Edward McGuire,A D Johnstone,Jill Mack,Michelle Rupp,Scott Euskirchen,Eugenie Melvin,April Genet,Helene Breen,Amy Walker,Xanthe Jean,Melanie Frey,Matthew University of Florida Gainsville United States 2016-08-01 text/html http://www.dtic.mil/docs/citations/AD1028833 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD1028833 en eng http://www.dtic.mil/docs/citations/AD1028833 Approved For Public Release; Ecology Alaska soil vulnerability management climate change ECOSYSTEMS permafrost FORESTS predictive modeling fire protection boreal forest fire management serdp collection Text 2016 ftdtic 2017-09-17T14:48:22Z This report summarizes empirical and modeling studies to improve understanding of the mechanistic linkages among fire, vegetation, the soil organic layer, and permafrost thaw across interior Alaska. Primary objectives: (1) Determine mechanistic links among fire, soils, permafrost, and vegetation succession in order to develop and test field-based ecosystem indicators that can be used to directly predict ecosystem vulnerability to state change and (2) Forecast landscape change in response to projected changes in climate, fire regime, and fire management. Results show that increased wildfire severity increases permafrost thaw in the near-term and influences seedling establishment and successional trajectories, shifting forest composition from black spruce ecosystems to those comprised of deciduous tree species. Long term, this shift has consequences for under story moss growth and organic soil re-accumulation, thereby directly influencing permafrost recovery. Forest management approaches employed will also impact successional trajectories and vulnerability of permafrost to thaw. Text permafrost Alaska Defense Technical Information Center: DTIC Technical Reports database |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Ecology Alaska soil vulnerability management climate change ECOSYSTEMS permafrost FORESTS predictive modeling fire protection boreal forest fire management serdp collection |
spellingShingle |
Ecology Alaska soil vulnerability management climate change ECOSYSTEMS permafrost FORESTS predictive modeling fire protection boreal forest fire management serdp collection Schuur,Edward McGuire,A D Johnstone,Jill Mack,Michelle Rupp,Scott Euskirchen,Eugenie Melvin,April Genet,Helene Breen,Amy Walker,Xanthe Jean,Melanie Frey,Matthew Identifying Indicators of State Change and Forecasting Future Vulnerability in Alaskan Boreal Ecosystems |
topic_facet |
Ecology Alaska soil vulnerability management climate change ECOSYSTEMS permafrost FORESTS predictive modeling fire protection boreal forest fire management serdp collection |
description |
This report summarizes empirical and modeling studies to improve understanding of the mechanistic linkages among fire, vegetation, the soil organic layer, and permafrost thaw across interior Alaska. Primary objectives: (1) Determine mechanistic links among fire, soils, permafrost, and vegetation succession in order to develop and test field-based ecosystem indicators that can be used to directly predict ecosystem vulnerability to state change and (2) Forecast landscape change in response to projected changes in climate, fire regime, and fire management. Results show that increased wildfire severity increases permafrost thaw in the near-term and influences seedling establishment and successional trajectories, shifting forest composition from black spruce ecosystems to those comprised of deciduous tree species. Long term, this shift has consequences for under story moss growth and organic soil re-accumulation, thereby directly influencing permafrost recovery. Forest management approaches employed will also impact successional trajectories and vulnerability of permafrost to thaw. |
author2 |
University of Florida Gainsville United States |
format |
Text |
author |
Schuur,Edward McGuire,A D Johnstone,Jill Mack,Michelle Rupp,Scott Euskirchen,Eugenie Melvin,April Genet,Helene Breen,Amy Walker,Xanthe Jean,Melanie Frey,Matthew |
author_facet |
Schuur,Edward McGuire,A D Johnstone,Jill Mack,Michelle Rupp,Scott Euskirchen,Eugenie Melvin,April Genet,Helene Breen,Amy Walker,Xanthe Jean,Melanie Frey,Matthew |
author_sort |
Schuur,Edward |
title |
Identifying Indicators of State Change and Forecasting Future Vulnerability in Alaskan Boreal Ecosystems |
title_short |
Identifying Indicators of State Change and Forecasting Future Vulnerability in Alaskan Boreal Ecosystems |
title_full |
Identifying Indicators of State Change and Forecasting Future Vulnerability in Alaskan Boreal Ecosystems |
title_fullStr |
Identifying Indicators of State Change and Forecasting Future Vulnerability in Alaskan Boreal Ecosystems |
title_full_unstemmed |
Identifying Indicators of State Change and Forecasting Future Vulnerability in Alaskan Boreal Ecosystems |
title_sort |
identifying indicators of state change and forecasting future vulnerability in alaskan boreal ecosystems |
publishDate |
2016 |
url |
http://www.dtic.mil/docs/citations/AD1028833 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD1028833 |
genre |
permafrost Alaska |
genre_facet |
permafrost Alaska |
op_relation |
http://www.dtic.mil/docs/citations/AD1028833 |
op_rights |
Approved For Public Release; |
_version_ |
1766163455019057152 |