Contribution of Root Respiration to Soil Respiration during Rainy Season in Dry Dipterocarp Forest, Northern Thailand

Soil respiration (Rs) plays a key role in regulating the terrestrial carbon cycle. The nature of this role is determined by the different responses of root respiration (Rr) and microbial respiration (Rm) to environmental factors such as precipitation, soil moisture and temperature. Understanding th...

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Main Authors: Punlop Intanil, Anusorn Boonpoke, Montri Sanwangsri, Phongthep Hanpattanakit
Format: Article
Language:English
Published: Environmental Research Institute, Chulalongkorn University 2018-08-01
Series:Applied Environmental Research
Subjects:
Online Access:https://ph01.tci-thaijo.org/index.php/aer/article/view/97063
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author Punlop Intanil
Anusorn Boonpoke
Montri Sanwangsri
Phongthep Hanpattanakit
author_facet Punlop Intanil
Anusorn Boonpoke
Montri Sanwangsri
Phongthep Hanpattanakit
author_sort Punlop Intanil
collection DOAJ
description Soil respiration (Rs) plays a key role in regulating the terrestrial carbon cycle. The nature of this role is determined by the different responses of root respiration (Rr) and microbial respiration (Rm) to environmental factors such as precipitation, soil moisture and temperature. Understanding these responses is fundamental to improving our predictions of climate change impacts on carbon cycling processes. In this study, the ratio of root respiration to soil respiration (Rr/Rs) was studied to improve our understanding of soil CO2 emissions. The study aimed to improve our knowledge of Rr in relation to rainy season soil environmental factors in a dry dipterocarp forest in northern Thailand. With values of Rr ranging from 41.04-61.97 mgCO2 m-2 h-1, with a Rr/Rs ratio from 23-48 %, the results suggest that soil moisture was a main driver for emitted CO2 from Rr while soil temperature was only weakly related with Rr during the rainy season. However, longer-term studies are needed, including measurements of root biomass to improve accuracy and understanding of the dynamics of root respiration and their linkages with CO2 emissions.
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spelling doaj.art-f9af0813a05842e2a04debb5aa97e1252024-02-14T10:50:20ZengEnvironmental Research Institute, Chulalongkorn UniversityApplied Environmental Research2287-075X2018-08-01403Contribution of Root Respiration to Soil Respiration during Rainy Season in Dry Dipterocarp Forest, Northern ThailandPunlop Intanil0Anusorn Boonpoke1Montri Sanwangsri2Phongthep Hanpattanakit3School of Energy and Environment, University of Phayao, Phayao, ThailandSchool of Energy and Environment, University of Phayao, Phayao, ThailandSchool of Energy and Environment, University of Phayao, Phayao, ThailandFaculty of Environmental Culture and Ecotourism, Srinakharinwirot University, Bangkok, Thailand Soil respiration (Rs) plays a key role in regulating the terrestrial carbon cycle. The nature of this role is determined by the different responses of root respiration (Rr) and microbial respiration (Rm) to environmental factors such as precipitation, soil moisture and temperature. Understanding these responses is fundamental to improving our predictions of climate change impacts on carbon cycling processes. In this study, the ratio of root respiration to soil respiration (Rr/Rs) was studied to improve our understanding of soil CO2 emissions. The study aimed to improve our knowledge of Rr in relation to rainy season soil environmental factors in a dry dipterocarp forest in northern Thailand. With values of Rr ranging from 41.04-61.97 mgCO2 m-2 h-1, with a Rr/Rs ratio from 23-48 %, the results suggest that soil moisture was a main driver for emitted CO2 from Rr while soil temperature was only weakly related with Rr during the rainy season. However, longer-term studies are needed, including measurements of root biomass to improve accuracy and understanding of the dynamics of root respiration and their linkages with CO2 emissions. https://ph01.tci-thaijo.org/index.php/aer/article/view/97063Root respirationSoil respirationDry dipterocarp forest
spellingShingle Punlop Intanil
Anusorn Boonpoke
Montri Sanwangsri
Phongthep Hanpattanakit
Contribution of Root Respiration to Soil Respiration during Rainy Season in Dry Dipterocarp Forest, Northern Thailand
Applied Environmental Research
Root respiration
Soil respiration
Dry dipterocarp forest
title Contribution of Root Respiration to Soil Respiration during Rainy Season in Dry Dipterocarp Forest, Northern Thailand
title_full Contribution of Root Respiration to Soil Respiration during Rainy Season in Dry Dipterocarp Forest, Northern Thailand
title_fullStr Contribution of Root Respiration to Soil Respiration during Rainy Season in Dry Dipterocarp Forest, Northern Thailand
title_full_unstemmed Contribution of Root Respiration to Soil Respiration during Rainy Season in Dry Dipterocarp Forest, Northern Thailand
title_short Contribution of Root Respiration to Soil Respiration during Rainy Season in Dry Dipterocarp Forest, Northern Thailand
title_sort contribution of root respiration to soil respiration during rainy season in dry dipterocarp forest northern thailand
topic Root respiration
Soil respiration
Dry dipterocarp forest
url https://ph01.tci-thaijo.org/index.php/aer/article/view/97063
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AT anusornboonpoke contributionofrootrespirationtosoilrespirationduringrainyseasonindrydipterocarpforestnorthernthailand
AT montrisanwangsri contributionofrootrespirationtosoilrespirationduringrainyseasonindrydipterocarpforestnorthernthailand
AT phongthephanpattanakit contributionofrootrespirationtosoilrespirationduringrainyseasonindrydipterocarpforestnorthernthailand