Influence of environmental factors on autotrophic, soil and ecosystem respirations in Canadian boreal forest
Ecosystem respiration (Reco) and its components, the autotrophic respiration (Ra) and soil respiration (Rs) are the essential indicators of the global carbon cycle. They are represented as functions of either temperature or soil moisture, or a combination of both in the widely-used Earth System Mode...
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ftdoajarticles:oai:doaj.org/article:1566e33375894153ba0d8159ff240a0c 2023-05-15T15:26:05+02:00 Influence of environmental factors on autotrophic, soil and ecosystem respirations in Canadian boreal forest Soumendra N. Bhanja Junye Wang 2021-06-01T00:00:00Z https://doi.org/10.1016/j.ecolind.2021.107517 https://doaj.org/article/1566e33375894153ba0d8159ff240a0c EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S1470160X21001825 https://doaj.org/toc/1470-160X 1470-160X doi:10.1016/j.ecolind.2021.107517 https://doaj.org/article/1566e33375894153ba0d8159ff240a0c Ecological Indicators, Vol 125, Iss , Pp 107517- (2021) Ecosystem respiration Autotrophic respiration Carbon cycle SWAT Root respiration Cold climate region Ecology QH540-549.5 article 2021 ftdoajarticles https://doi.org/10.1016/j.ecolind.2021.107517 2022-12-31T09:23:40Z Ecosystem respiration (Reco) and its components, the autotrophic respiration (Ra) and soil respiration (Rs) are the essential indicators of the global carbon cycle. They are represented as functions of either temperature or soil moisture, or a combination of both in the widely-used Earth System Models (ESMs). Thus, it is difficult to evaluate the influence of other environmental factors (such as, precipitation, soil temperature, dissolved oxygen level and oxidation reduction potential (ORP)) on Ra, Rs and Reco. Here we introduced microbially mediated, detailed carbon cycle processes within our mechanistic model to address this issue. Dominance analysis using a multivariate approach was performed to find out the influence of individual environmental factors on Ra, Rs and Reco in the cold climate regions of Athabasca River Basin (ARB), Canada. Contribution of the 6 predictor variables, including air temperature, precipitation, soil temperature, water-filled pore space (WFPS) used as a proxy of soil moisture, dissolved oxygen level, and ORP, on Ra, Rs and Reco were estimated based on the R2 values originated from multiple regression analyses. Our results showed that the prevailing temperature (both air and soil) and dissolved oxygen levels are the major influencing factors on Ra, Rs and Reco. WFPS is found to be the least influential factor on respiration estimation. Output of this study can be used to consider the crucial roles of environmental drivers in Ra, Rs and Reco estimation in the development of future ESMs. Article in Journal/Newspaper Athabasca River Directory of Open Access Journals: DOAJ Articles Athabasca River Canada Ecological Indicators 125 107517 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Ecosystem respiration Autotrophic respiration Carbon cycle SWAT Root respiration Cold climate region Ecology QH540-549.5 |
spellingShingle |
Ecosystem respiration Autotrophic respiration Carbon cycle SWAT Root respiration Cold climate region Ecology QH540-549.5 Soumendra N. Bhanja Junye Wang Influence of environmental factors on autotrophic, soil and ecosystem respirations in Canadian boreal forest |
topic_facet |
Ecosystem respiration Autotrophic respiration Carbon cycle SWAT Root respiration Cold climate region Ecology QH540-549.5 |
description |
Ecosystem respiration (Reco) and its components, the autotrophic respiration (Ra) and soil respiration (Rs) are the essential indicators of the global carbon cycle. They are represented as functions of either temperature or soil moisture, or a combination of both in the widely-used Earth System Models (ESMs). Thus, it is difficult to evaluate the influence of other environmental factors (such as, precipitation, soil temperature, dissolved oxygen level and oxidation reduction potential (ORP)) on Ra, Rs and Reco. Here we introduced microbially mediated, detailed carbon cycle processes within our mechanistic model to address this issue. Dominance analysis using a multivariate approach was performed to find out the influence of individual environmental factors on Ra, Rs and Reco in the cold climate regions of Athabasca River Basin (ARB), Canada. Contribution of the 6 predictor variables, including air temperature, precipitation, soil temperature, water-filled pore space (WFPS) used as a proxy of soil moisture, dissolved oxygen level, and ORP, on Ra, Rs and Reco were estimated based on the R2 values originated from multiple regression analyses. Our results showed that the prevailing temperature (both air and soil) and dissolved oxygen levels are the major influencing factors on Ra, Rs and Reco. WFPS is found to be the least influential factor on respiration estimation. Output of this study can be used to consider the crucial roles of environmental drivers in Ra, Rs and Reco estimation in the development of future ESMs. |
format |
Article in Journal/Newspaper |
author |
Soumendra N. Bhanja Junye Wang |
author_facet |
Soumendra N. Bhanja Junye Wang |
author_sort |
Soumendra N. Bhanja |
title |
Influence of environmental factors on autotrophic, soil and ecosystem respirations in Canadian boreal forest |
title_short |
Influence of environmental factors on autotrophic, soil and ecosystem respirations in Canadian boreal forest |
title_full |
Influence of environmental factors on autotrophic, soil and ecosystem respirations in Canadian boreal forest |
title_fullStr |
Influence of environmental factors on autotrophic, soil and ecosystem respirations in Canadian boreal forest |
title_full_unstemmed |
Influence of environmental factors on autotrophic, soil and ecosystem respirations in Canadian boreal forest |
title_sort |
influence of environmental factors on autotrophic, soil and ecosystem respirations in canadian boreal forest |
publisher |
Elsevier |
publishDate |
2021 |
url |
https://doi.org/10.1016/j.ecolind.2021.107517 https://doaj.org/article/1566e33375894153ba0d8159ff240a0c |
geographic |
Athabasca River Canada |
geographic_facet |
Athabasca River Canada |
genre |
Athabasca River |
genre_facet |
Athabasca River |
op_source |
Ecological Indicators, Vol 125, Iss , Pp 107517- (2021) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S1470160X21001825 https://doaj.org/toc/1470-160X 1470-160X doi:10.1016/j.ecolind.2021.107517 https://doaj.org/article/1566e33375894153ba0d8159ff240a0c |
op_doi |
https://doi.org/10.1016/j.ecolind.2021.107517 |
container_title |
Ecological Indicators |
container_volume |
125 |
container_start_page |
107517 |
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1766356642954215424 |