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Title: Microbial dormancy and its impacts on northern temperate and boreal terrestrial ecosystem carbon budget

Abstract

A large amount of soil carbon in northern temperate and boreal regions could be emitted as greenhouse gases in a warming future. However, lacking detailed microbial processes such as microbial dormancy in current biogeochemistry models might have biased the quantification of the regional carbon dynamics. Here the effect of microbial dormancy was incorporated into a biogeochemistry model to improve the quantification for the last century and this century. Compared with the previous model without considering the microbial dormancy, the new model estimated the regional soils stored 75.9 Pg more C in the terrestrial ecosystems during the last century and will store 50.4 and 125.2 Pg more C under the RCP8.5 and RCP2.6 scenarios, respectively, in this century. This study highlights the importance of the representation of microbial dormancy in earth system models to adequately quantify the carbon dynamics in the northern temperate and boreal natural terrestrial ecosystems.

Authors:
ORCiD logo [1]; ORCiD logo [1]
  1. Purdue Univ., West Lafayette, IN (United States)
Publication Date:
Research Org.:
Univ. of Oregon, Eugene, OR (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
OSTI Identifier:
1711425
Grant/Contract Number:  
SC0008092
Resource Type:
Accepted Manuscript
Journal Name:
Biogeosciences (Online)
Additional Journal Information:
Journal Name: Biogeosciences (Online); Journal Volume: 17; Journal Issue: 18; Journal ID: ISSN 1726-4189
Publisher:
European Geosciences Union
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES

Citation Formats

Zha, Junrong, and Zhuang, Qianla. Microbial dormancy and its impacts on northern temperate and boreal terrestrial ecosystem carbon budget. United States: N. p., 2020. Web. doi:10.5194/bg-17-4591-2020.
Zha, Junrong, & Zhuang, Qianla. Microbial dormancy and its impacts on northern temperate and boreal terrestrial ecosystem carbon budget. United States. https://doi.org/10.5194/bg-17-4591-2020
Zha, Junrong, and Zhuang, Qianla. Mon . "Microbial dormancy and its impacts on northern temperate and boreal terrestrial ecosystem carbon budget". United States. https://doi.org/10.5194/bg-17-4591-2020. https://www.osti.gov/servlets/purl/1711425.
@article{osti_1711425,
title = {Microbial dormancy and its impacts on northern temperate and boreal terrestrial ecosystem carbon budget},
author = {Zha, Junrong and Zhuang, Qianla},
abstractNote = {A large amount of soil carbon in northern temperate and boreal regions could be emitted as greenhouse gases in a warming future. However, lacking detailed microbial processes such as microbial dormancy in current biogeochemistry models might have biased the quantification of the regional carbon dynamics. Here the effect of microbial dormancy was incorporated into a biogeochemistry model to improve the quantification for the last century and this century. Compared with the previous model without considering the microbial dormancy, the new model estimated the regional soils stored 75.9 Pg more C in the terrestrial ecosystems during the last century and will store 50.4 and 125.2 Pg more C under the RCP8.5 and RCP2.6 scenarios, respectively, in this century. This study highlights the importance of the representation of microbial dormancy in earth system models to adequately quantify the carbon dynamics in the northern temperate and boreal natural terrestrial ecosystems.},
doi = {10.5194/bg-17-4591-2020},
journal = {Biogeosciences (Online)},
number = 18,
volume = 17,
place = {United States},
year = {Mon Sep 21 00:00:00 EDT 2020},
month = {Mon Sep 21 00:00:00 EDT 2020}
}

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