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Atmosphere
Special Issues
Climate Change and Its Effects on Permafrost
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Climate Change and Its Effects on Permafrost

A special issue of Atmosphere (ISSN 2073-4433). This special issue belongs to the section "Biosphere/Hydrosphere/Land–Atmosphere Interactions".

Deadline for manuscript submissions: closed (15 December 2021) | Viewed by 7559

Special Issue Editor

Dr. Stuart A. Harris

E-Mail Website
Guest Editor
Department of Geography, University of Calgary, Calgary, AB T2N 1N4, Canada
Interests: permafrost; climatic change; paleogeography
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Climate usually fluctuates, and the changes affect the environment in many ways. Permafrost areas are unique in that they are usually characterized by a large build-up of ice in the ground. Any changes in temperature result in changes in soil volume, thickness of the active layer and underlying permafrost resulting from thawing or accumulation of ice, changes in vegetation, strength of the ground, etc. They also cause sequestering or release of carbon, heaving or subsidence, changes in strength of the ground, creep or flowage of surface materials and development of thermokarst features such as retrogressive thaw flows and landslides, alases, lakes, and ponds. This book will consist of a series of papers exploring and summarizing our present state of knowledge of these changes. This is sorely needed if the cold Arctic lands in the Northern Hemisphere are to be successfully developed.

Dr. Stuart A. Harris
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Atmosphere is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • climate change causes and mechanisms
  • climate change effects on the permafrost environment
  • climate change effects on human uses of permafrost lands

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Published Papers (1 paper)

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Review

17 pages, 1602 KiB  
Review
Impacts of Permafrost Degradation on Carbon Stocks and Emissions under a Warming Climate: A Review
by Huijun Jin and Qiang Ma
Atmosphere 2021, 12(11), 1425; https://doi.org/10.3390/atmos12111425 - 29 Oct 2021
Cited by 32 | Viewed by 6540
Abstract
A huge amount of carbon (C) is stored in permafrost regions. Climate warming and permafrost degradation induce gradual and abrupt carbon emissions into both the atmosphere and hydrosphere. In this paper, we review and synthesize recent advances in studies on carbon stocks in [...] Read more.
A huge amount of carbon (C) is stored in permafrost regions. Climate warming and permafrost degradation induce gradual and abrupt carbon emissions into both the atmosphere and hydrosphere. In this paper, we review and synthesize recent advances in studies on carbon stocks in permafrost regions, biodegradability of permafrost organic carbon (POC), carbon emissions, and modeling/projecting permafrost carbon feedback to climate warming. The results showed that: (1) A large amount of organic carbon (1460–1600 PgC) is stored in permafrost regions, while there are large uncertainties in the estimation of carbon pools in subsea permafrost and in clathrates in terrestrial permafrost regions and offshore clathrate reservoirs; (2) many studies indicate that carbon pools in Circum-Arctic regions are on the rise despite the increasing release of POC under a warming climate, because of enhancing carbon uptake of boreal and arctic ecosystems; however, some ecosystem model studies indicate otherwise, that the permafrost carbon pool tends to decline as a result of conversion of permafrost regions from atmospheric sink to source under a warming climate; (3) multiple environmental factors affect the decomposability of POC, including ground hydrothermal regimes, carbon/nitrogen (C/N) ratio, organic carbon contents, and microbial communities, among others; and (4) however, results from modeling and projecting studies on the feedbacks of POC to climate warming indicate no conclusive or substantial acceleration of climate warming from POC emission and permafrost degradation over the 21st century. These projections may potentially underestimate the POC feedbacks to climate warming if abrupt POC emissions are not taken into account. We advise that studies on permafrost carbon feedbacks to climate warming should also focus more on the carbon feedbacks from the rapid permafrost degradation, such as thermokarst processes, gas hydrate destabilization, and wildfire-induced permafrost degradation. More attention should be paid to carbon emissions from aquatic systems because of their roles in channeling POC release and their significant methane release potentials. Full article
(This article belongs to the Special Issue Climate Change and Its Effects on Permafrost)
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