The importance of interactions between snow, permafrost and vegetation dynamics in affecting terrestrial carbon balance in circumpolar regions
Permafrost dynamics can drastically affect vegetation and soil carbon dynamics in northern high latitudes. Vegetation has significant influences on the energy balance of soil surface by impacting the short-wave radiation, long-wave radiation and surface sensible heat flux, affecting soil thermal dyn...
Published in: | Environmental Research Letters |
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Online Access: | https://doi.org/10.1088/1748-9326/acc1f7 https://doaj.org/article/e9181357f2ea42eda08d13551ea612a0 |
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ftdoajarticles:oai:doaj.org/article:e9181357f2ea42eda08d13551ea612a0 2023-09-05T13:22:31+02:00 The importance of interactions between snow, permafrost and vegetation dynamics in affecting terrestrial carbon balance in circumpolar regions Yiming Xu Qianlai Zhuang 2023-01-01T00:00:00Z https://doi.org/10.1088/1748-9326/acc1f7 https://doaj.org/article/e9181357f2ea42eda08d13551ea612a0 EN eng IOP Publishing https://doi.org/10.1088/1748-9326/acc1f7 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/acc1f7 1748-9326 https://doaj.org/article/e9181357f2ea42eda08d13551ea612a0 Environmental Research Letters, Vol 18, Iss 4, p 044007 (2023) permafrost carbon dynamics ecosystem modeling land surface process Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 article 2023 ftdoajarticles https://doi.org/10.1088/1748-9326/acc1f7 2023-08-13T00:36:58Z Permafrost dynamics can drastically affect vegetation and soil carbon dynamics in northern high latitudes. Vegetation has significant influences on the energy balance of soil surface by impacting the short-wave radiation, long-wave radiation and surface sensible heat flux, affecting soil thermal dynamics, in turn, inducing vegetation shift, affecting carbon cycling. During winter, snow can also significantly impact soil temperature due to its insulative effect. However, these processes have not been fully modeled to date. To quantify the interactions between vegetation, snow, and soil thermal dynamics and their impacts on carbon dynamics over the circumpolar region (45–90° N), we revise a sophisticated ecosystem model to improve simulations of soil temperature profile and their influences on vegetation, ecosystem carbon pools and fluxes. We find that, with warmer soil temperature in winter and cooler soil temperature in summer simulated with the revised model considering vegetation shift and snow effects, the region will release 1.54 Pg C/year to the atmosphere for present-day and 66.77–87.95 Pg C in 2022–2100. The canopy effects due to vegetation shift, however, will get more carbon sequestered into the ecosystem at 1.00 Pg C/year for present day and 36.09–44.32 Pg C/year in 2022–2100. This study highlights the importance to consider the interactions between snow, vegetation shift and soil thermal dynamics in simulating carbon dynamics in the region. Article in Journal/Newspaper permafrost Directory of Open Access Journals: DOAJ Articles Environmental Research Letters 18 4 044007 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
permafrost carbon dynamics ecosystem modeling land surface process Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
spellingShingle |
permafrost carbon dynamics ecosystem modeling land surface process Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 Yiming Xu Qianlai Zhuang The importance of interactions between snow, permafrost and vegetation dynamics in affecting terrestrial carbon balance in circumpolar regions |
topic_facet |
permafrost carbon dynamics ecosystem modeling land surface process Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
description |
Permafrost dynamics can drastically affect vegetation and soil carbon dynamics in northern high latitudes. Vegetation has significant influences on the energy balance of soil surface by impacting the short-wave radiation, long-wave radiation and surface sensible heat flux, affecting soil thermal dynamics, in turn, inducing vegetation shift, affecting carbon cycling. During winter, snow can also significantly impact soil temperature due to its insulative effect. However, these processes have not been fully modeled to date. To quantify the interactions between vegetation, snow, and soil thermal dynamics and their impacts on carbon dynamics over the circumpolar region (45–90° N), we revise a sophisticated ecosystem model to improve simulations of soil temperature profile and their influences on vegetation, ecosystem carbon pools and fluxes. We find that, with warmer soil temperature in winter and cooler soil temperature in summer simulated with the revised model considering vegetation shift and snow effects, the region will release 1.54 Pg C/year to the atmosphere for present-day and 66.77–87.95 Pg C in 2022–2100. The canopy effects due to vegetation shift, however, will get more carbon sequestered into the ecosystem at 1.00 Pg C/year for present day and 36.09–44.32 Pg C/year in 2022–2100. This study highlights the importance to consider the interactions between snow, vegetation shift and soil thermal dynamics in simulating carbon dynamics in the region. |
format |
Article in Journal/Newspaper |
author |
Yiming Xu Qianlai Zhuang |
author_facet |
Yiming Xu Qianlai Zhuang |
author_sort |
Yiming Xu |
title |
The importance of interactions between snow, permafrost and vegetation dynamics in affecting terrestrial carbon balance in circumpolar regions |
title_short |
The importance of interactions between snow, permafrost and vegetation dynamics in affecting terrestrial carbon balance in circumpolar regions |
title_full |
The importance of interactions between snow, permafrost and vegetation dynamics in affecting terrestrial carbon balance in circumpolar regions |
title_fullStr |
The importance of interactions between snow, permafrost and vegetation dynamics in affecting terrestrial carbon balance in circumpolar regions |
title_full_unstemmed |
The importance of interactions between snow, permafrost and vegetation dynamics in affecting terrestrial carbon balance in circumpolar regions |
title_sort |
importance of interactions between snow, permafrost and vegetation dynamics in affecting terrestrial carbon balance in circumpolar regions |
publisher |
IOP Publishing |
publishDate |
2023 |
url |
https://doi.org/10.1088/1748-9326/acc1f7 https://doaj.org/article/e9181357f2ea42eda08d13551ea612a0 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Environmental Research Letters, Vol 18, Iss 4, p 044007 (2023) |
op_relation |
https://doi.org/10.1088/1748-9326/acc1f7 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/acc1f7 1748-9326 https://doaj.org/article/e9181357f2ea42eda08d13551ea612a0 |
op_doi |
https://doi.org/10.1088/1748-9326/acc1f7 |
container_title |
Environmental Research Letters |
container_volume |
18 |
container_issue |
4 |
container_start_page |
044007 |
_version_ |
1776203042448736256 |