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Title: Reviews and syntheses: Changing ecosystem influences on soil thermal regimes in northern high-latitude permafrost regions

Abstract

Abstract. Permafrost soils in arctic and boreal ecosystems store twice the amount of current atmospheric carbon that may be mobilized and released to the atmosphere as greenhouse gases when soils thaw under a warming climate. This permafrost carbon climate feedback is among the most globally important terrestrial biosphere feedbacks to climate warming, yet its magnitude remains highly uncertain. This uncertainty lies in predicting the rates and spatial extent of permafrost thaw and subsequent carbon cycle processes. Terrestrial ecosystem influences on surface energy partitioning exert strong control on permafrost soil thermal dynamics and are critical for understanding permafrost soil responses to climate change and disturbance. Here we review how arctic and boreal ecosystem processes influence permafrost soils and characterize key ecosystem changes that regulate permafrost responses to climate. While many of the ecosystem characteristics and processes affecting soil thermal dynamics have been examined in isolation, interactions between processes are less well understood. In particular connections between vegetation, soil moisture, and soil thermal properties affecting permafrost conditions could benefit from additional research. In particular, connections between vegetation, soil moisture, and soil thermal properties affecting permafrost could benefit from additional research. Changes in ecosystem distribution and vegetation characteristics will alter spatial patterns ofmore » interactions between climate and permafrost. In addition to shrub expansion, other vegetation responses to changes in climate and disturbance regimes will all affect ecosystem surface energy partitioning in ways that are important for permafrost. Lastly, changes in vegetation and ecosystem distribution will lead to regional and global biophysical and biogeochemical climate feedbacks that may compound or offset local impacts on permafrost soils. Consequently, accurate prediction of the permafrost carbon climate feedback will require detailed understanding of changes in terrestrial ecosystem distribution and function and the net effects of multiple feedback processes operating across scales in space and time.« less

Authors:
ORCiD logo; ; ; ; ; ; ; ; ; ; ORCiD logo; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1465025
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Biogeosciences Discussions (Online)
Additional Journal Information:
Journal Volume: 15; Journal Issue: 17; Journal ID: ISSN 1810-6285
Publisher:
European Geosciences Union
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES

Citation Formats

Loranty, Michael M., Abbott, Benjamin W., Blok, Daan, Douglas, Thomas A., Epstein, Howard E., Forbes, Bruce C., Jones, Benjamin M., Kholodov, Alexander L., Kropp, Heather, Malhotra, Avni, Mamet, Steven D., Myers-Smith, Isla H., Natali, Susan M., O'Donnell, Jonathan A., Phoenix, Gareth K., Rocha, Adrian V., Sonnentag, Oliver, Tape, Ken D., and Walker, Donald A. Reviews and syntheses: Changing ecosystem influences on soil thermal regimes in northern high-latitude permafrost regions. United States: N. p., 2018. Web. doi:10.5194/bg-2018-201.
Loranty, Michael M., Abbott, Benjamin W., Blok, Daan, Douglas, Thomas A., Epstein, Howard E., Forbes, Bruce C., Jones, Benjamin M., Kholodov, Alexander L., Kropp, Heather, Malhotra, Avni, Mamet, Steven D., Myers-Smith, Isla H., Natali, Susan M., O'Donnell, Jonathan A., Phoenix, Gareth K., Rocha, Adrian V., Sonnentag, Oliver, Tape, Ken D., & Walker, Donald A. Reviews and syntheses: Changing ecosystem influences on soil thermal regimes in northern high-latitude permafrost regions. United States. doi:10.5194/bg-2018-201.
Loranty, Michael M., Abbott, Benjamin W., Blok, Daan, Douglas, Thomas A., Epstein, Howard E., Forbes, Bruce C., Jones, Benjamin M., Kholodov, Alexander L., Kropp, Heather, Malhotra, Avni, Mamet, Steven D., Myers-Smith, Isla H., Natali, Susan M., O'Donnell, Jonathan A., Phoenix, Gareth K., Rocha, Adrian V., Sonnentag, Oliver, Tape, Ken D., and Walker, Donald A. Mon . "Reviews and syntheses: Changing ecosystem influences on soil thermal regimes in northern high-latitude permafrost regions". United States. doi:10.5194/bg-2018-201. https://www.osti.gov/servlets/purl/1465025.
@article{osti_1465025,
title = {Reviews and syntheses: Changing ecosystem influences on soil thermal regimes in northern high-latitude permafrost regions},
author = {Loranty, Michael M. and Abbott, Benjamin W. and Blok, Daan and Douglas, Thomas A. and Epstein, Howard E. and Forbes, Bruce C. and Jones, Benjamin M. and Kholodov, Alexander L. and Kropp, Heather and Malhotra, Avni and Mamet, Steven D. and Myers-Smith, Isla H. and Natali, Susan M. and O'Donnell, Jonathan A. and Phoenix, Gareth K. and Rocha, Adrian V. and Sonnentag, Oliver and Tape, Ken D. and Walker, Donald A.},
abstractNote = {Abstract. Permafrost soils in arctic and boreal ecosystems store twice the amount of current atmospheric carbon that may be mobilized and released to the atmosphere as greenhouse gases when soils thaw under a warming climate. This permafrost carbon climate feedback is among the most globally important terrestrial biosphere feedbacks to climate warming, yet its magnitude remains highly uncertain. This uncertainty lies in predicting the rates and spatial extent of permafrost thaw and subsequent carbon cycle processes. Terrestrial ecosystem influences on surface energy partitioning exert strong control on permafrost soil thermal dynamics and are critical for understanding permafrost soil responses to climate change and disturbance. Here we review how arctic and boreal ecosystem processes influence permafrost soils and characterize key ecosystem changes that regulate permafrost responses to climate. While many of the ecosystem characteristics and processes affecting soil thermal dynamics have been examined in isolation, interactions between processes are less well understood. In particular connections between vegetation, soil moisture, and soil thermal properties affecting permafrost conditions could benefit from additional research. In particular, connections between vegetation, soil moisture, and soil thermal properties affecting permafrost could benefit from additional research. Changes in ecosystem distribution and vegetation characteristics will alter spatial patterns of interactions between climate and permafrost. In addition to shrub expansion, other vegetation responses to changes in climate and disturbance regimes will all affect ecosystem surface energy partitioning in ways that are important for permafrost. Lastly, changes in vegetation and ecosystem distribution will lead to regional and global biophysical and biogeochemical climate feedbacks that may compound or offset local impacts on permafrost soils. Consequently, accurate prediction of the permafrost carbon climate feedback will require detailed understanding of changes in terrestrial ecosystem distribution and function and the net effects of multiple feedback processes operating across scales in space and time.},
doi = {10.5194/bg-2018-201},
journal = {Biogeosciences Discussions (Online)},
issn = {1810-6285},
number = 17,
volume = 15,
place = {United States},
year = {2018},
month = {5}
}

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Vegetation-Permafrost Relations within the Forest-Tundra Ecotone near Old Crow, Northern Yukon, Canada: Permafrost Temperatures within the Forest-Tundra near Old Crow, YT
journal, April 2014

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Recent Increases in Permafrost Thaw Rates and Areal Loss of Palsas in the Western Northwest Territories, Canada: Non-linear Palsa Degradation
journal, May 2017

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Patterns of permafrost formation and degradation in relation to climate and ecosystems
journal, January 2007

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Litter decomposition in moist acidic and non-acidic tundra with different glacial histories
journal, June 2004


The Cooling Capacity of Mosses: Controls on Water and Energy Fluxes in a Siberian Tundra Site
journal, July 2011


The Effects of Permafrost Thaw on Soil Hydrologic, Thermal, and Carbon Dynamics in an Alaskan Peatland
journal, November 2011

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Thermo-erosion gullies increase nitrogen available for hydrologic export
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Expert assessment of vulnerability of permafrost carbon to climate change
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Spatial coherence and change of opposite white spruce temperature sensitivities on floodplains in Alaska confirms early-stage boreal biome shift
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Impacts of increased soil burn severity on larch forest regeneration on permafrost soils of far northeastern Siberia
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Satellite based analysis of northern ET trends and associated changes in the regional water balance from 1983 to 2005
journal, December 2009


Arctic shrub effects on NDVI, summer albedo and soil shading
journal, October 2014


Patterns of soil temperature and moisture in the active layer and upper permafrost at Barrow, Alaska: 1993–1999
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Impacts of wildfire on the permafrost in the boreal forests of Interior Alaska
journal, December 2002

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Influence of the seasonal snow cover on the ground thermal regime: An overview
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High-latitude tree growth and satellite vegetation indices: Correlations and trends in Russia and Canada (1982–2008)
journal, January 2011

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How the insulating properties of snow affect soil carbon distribution in the continental pan-Arctic area: SNOW INSULATION OF SOIL CARBON STOCKS
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Permafrost collapse after shrub removal shifts tundra ecosystem to a methane source
journal, November 2014

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Climate mitigation from vegetation biophysical feedbacks during the past three decades
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Pan-Arctic ice-wedge degradation in warming permafrost and its influence on tundra hydrology
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Carbon budgets for 1.5 and 2 °C targets lowered by natural wetland and permafrost feedbacks
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Recent Arctic tundra fire initiates widespread thermokarst development
journal, October 2015

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Modelled changes in arctic tundra snow, energy and moisture fluxes due to increased shrubs
journal, January 2002


Climate and vegetation controls on boreal zone energy exchange
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The role of fire in the boreal carbon budget
journal, December 2000


Fire return intervals within the northern boundary of the larch forest in Central Siberia
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Permafrost carbon-climate feedbacks accelerate global warming
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The Influence of Permafrost and Fire upon Carbon Accumulation in High Boreal Peatlands, Northwest Territories, Canada
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Biomass offsets little or none of permafrost carbon release from soils, streams, and wildfire: an expert assessment
journal, March 2016

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Edaphic and microclimatic controls over permafrost response to fire in interior Alaska
journal, July 2013


Reorganization of vegetation, hydrology and soil carbon after permafrost degradation across heterogeneous boreal landscapes
journal, July 2013

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Vegetation controls on northern high latitude snow-albedo feedback: observations and CMIP5 model simulations
journal, December 2013

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Disturbance legacies and climate jointly drive tree growth and mortality in an intensively studied boreal forest
journal, October 2013

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Latent heat exchange in the boreal and arctic biomes
journal, June 2014

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Stable carbon isotope analysis reveals widespread drought stress in boreal black spruce forests
journal, April 2015

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Thermokarst rates intensify due to climate change and forest fragmentation in an Alaskan boreal forest lowland
journal, January 2016

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Effects of experimental warming of air, soil and permafrost on carbon balance in Alaskan tundra: WARMING OF ALASKAN TUNDRA
journal, February 2011


Global negative vegetation feedback to climate warming responses of leaf litter decomposition rates in cold biomes
journal, July 2007


Changes in forest productivity across Alaska consistent with biome shift: Changes in forest productivity across Alaska
journal, February 2011


Fire emissions estimates in Siberia: evaluation of uncertainties in area burned, land cover, and fuel consumption
journal, May 2013

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Snow–Shrub Interactions in Arctic Tundra: A Hypothesis with Climatic Implications
journal, February 2001


Implications of increased deciduous cover on stand structure and aboveground carbon pools of Alaskan boreal forests
journal, May 2012

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  • Ecosphere, Vol. 3, Issue 5
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Postfire Vegetation Recovery and Tree Establishment at the Arctic Treeline: Climate-Change-Vegetation-Response Hypotheses
journal, December 1993

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Wildfires Dynamics in Siberian Larch Forests
journal, June 2016

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Environmental correlates of peatland carbon fluxes in a thawing landscape: do transitional thaw stages matter?
journal, January 2015


Scaling-up permafrost thermal measurements in western Alaska using an ecotype approach
journal, January 2016

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    Works referencing / citing this record:

    Plant Uptake Offsets Silica Release From a Large Arctic Tundra Wildfire
    journal, September 2019

    • Carey, Joanna C.; Abbott, Benjamin W.; Rocha, Adrian V.
    • Earth's Future, Vol. 7, Issue 9
    • DOI: 10.1029/2019ef001149