Soil CO2 Efflux Measurements by Alkali Absorption and Infrared Gas Analyzer in the Brazilian Semiarid Region

Detalhes bibliográficos
Autor(a) principal: Ferreira,Carlas Renata Prissila Costa
Data de Publicação: 2018
Outros Autores: Antonino,Antonio Celso Dantas, Sampaio,Everardo Valadares de Sá Barreto, Correia,Karina Guedes, Lima,José Romualdo de Sousa, Soares,Willames de Albuquerque, Menezes,Rômulo Simões Cezar
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Ciência do Solo (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100400
Resumo: ABSTRACT The CO2 emission from the soil surface, commonly referred to as soil CO2 efflux (ECO2) or soil respiration, is the sum of processes that include root respiration and microbial activity. Measuring this evolution is important to establish sustainable land use models and to estimate global fluxes of carbon, which affect climate change. Despite its importance, few measurements have been made in areas of the semiarid Brazilian Northeast region, and most of them were made using the alkali absorption method (AA), which can underestimate ECO2. Measurements using AA were compared to measurements using the infrared gas analyzer method (IRGA) over ten months (in rainy and dry seasons), during the day and night, in areas of Caatinga (xeric shrubland and thorn forest) and pasture in the Agreste region of the state of Pernambuco. The ECO2 measurements from AA varied little from night to day and throughout the year or in the rainy and dry seasons. However, those obtained from IRGA were higher in the rainy than in the dry season, but also without significant differences from day to night. The values of both methods were similar in the dry season, but in the rainy season they were higher with the IRGA. Therefore, AA seems to have little sensitivity to seasonal variations, in contrast with measurements from the IRGA, and it may underestimate soil ECO2 when it attains higher values. This result indicates that some of the soil ECO2 values determined in areas of the Brazilian semiarid region, and consequently annual C losses, may have been underestimated.
id SBCS-1_8268215b3ce99ec2ba393d8e3357747a
oai_identifier_str oai:scielo:S0100-06832018000100400
network_acronym_str SBCS-1
network_name_str Revista Brasileira de Ciência do Solo (Online)
repository_id_str
spelling Soil CO2 Efflux Measurements by Alkali Absorption and Infrared Gas Analyzer in the Brazilian Semiarid RegionCO2 emissionrainy seasondry seasonCaatingapastureABSTRACT The CO2 emission from the soil surface, commonly referred to as soil CO2 efflux (ECO2) or soil respiration, is the sum of processes that include root respiration and microbial activity. Measuring this evolution is important to establish sustainable land use models and to estimate global fluxes of carbon, which affect climate change. Despite its importance, few measurements have been made in areas of the semiarid Brazilian Northeast region, and most of them were made using the alkali absorption method (AA), which can underestimate ECO2. Measurements using AA were compared to measurements using the infrared gas analyzer method (IRGA) over ten months (in rainy and dry seasons), during the day and night, in areas of Caatinga (xeric shrubland and thorn forest) and pasture in the Agreste region of the state of Pernambuco. The ECO2 measurements from AA varied little from night to day and throughout the year or in the rainy and dry seasons. However, those obtained from IRGA were higher in the rainy than in the dry season, but also without significant differences from day to night. The values of both methods were similar in the dry season, but in the rainy season they were higher with the IRGA. Therefore, AA seems to have little sensitivity to seasonal variations, in contrast with measurements from the IRGA, and it may underestimate soil ECO2 when it attains higher values. This result indicates that some of the soil ECO2 values determined in areas of the Brazilian semiarid region, and consequently annual C losses, may have been underestimated.Sociedade Brasileira de Ciência do Solo2018-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100400Revista Brasileira de Ciência do Solo v.42 2018reponame:Revista Brasileira de Ciência do Solo (Online)instname:Sociedade Brasileira de Ciência do Solo (SBCS)instacron:SBCS10.1590/18069657rbcs20160563info:eu-repo/semantics/openAccessFerreira,Carlas Renata Prissila CostaAntonino,Antonio Celso DantasSampaio,Everardo Valadares de Sá BarretoCorreia,Karina GuedesLima,José Romualdo de SousaSoares,Willames de AlbuquerqueMenezes,Rômulo Simões Cezareng2018-02-06T00:00:00Zoai:scielo:S0100-06832018000100400Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=0100-0683&lng=es&nrm=isohttps://old.scielo.br/oai/scielo-oai.php||sbcs@ufv.br1806-96570100-0683opendoar:2018-02-06T00:00Revista Brasileira de Ciência do Solo (Online) - Sociedade Brasileira de Ciência do Solo (SBCS)false
dc.title.none.fl_str_mv Soil CO2 Efflux Measurements by Alkali Absorption and Infrared Gas Analyzer in the Brazilian Semiarid Region
title Soil CO2 Efflux Measurements by Alkali Absorption and Infrared Gas Analyzer in the Brazilian Semiarid Region
spellingShingle Soil CO2 Efflux Measurements by Alkali Absorption and Infrared Gas Analyzer in the Brazilian Semiarid Region
Ferreira,Carlas Renata Prissila Costa
CO2 emission
rainy season
dry season
Caatinga
pasture
title_short Soil CO2 Efflux Measurements by Alkali Absorption and Infrared Gas Analyzer in the Brazilian Semiarid Region
title_full Soil CO2 Efflux Measurements by Alkali Absorption and Infrared Gas Analyzer in the Brazilian Semiarid Region
title_fullStr Soil CO2 Efflux Measurements by Alkali Absorption and Infrared Gas Analyzer in the Brazilian Semiarid Region
title_full_unstemmed Soil CO2 Efflux Measurements by Alkali Absorption and Infrared Gas Analyzer in the Brazilian Semiarid Region
title_sort Soil CO2 Efflux Measurements by Alkali Absorption and Infrared Gas Analyzer in the Brazilian Semiarid Region
author Ferreira,Carlas Renata Prissila Costa
author_facet Ferreira,Carlas Renata Prissila Costa
Antonino,Antonio Celso Dantas
Sampaio,Everardo Valadares de Sá Barreto
Correia,Karina Guedes
Lima,José Romualdo de Sousa
Soares,Willames de Albuquerque
Menezes,Rômulo Simões Cezar
author_role author
author2 Antonino,Antonio Celso Dantas
Sampaio,Everardo Valadares de Sá Barreto
Correia,Karina Guedes
Lima,José Romualdo de Sousa
Soares,Willames de Albuquerque
Menezes,Rômulo Simões Cezar
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Ferreira,Carlas Renata Prissila Costa
Antonino,Antonio Celso Dantas
Sampaio,Everardo Valadares de Sá Barreto
Correia,Karina Guedes
Lima,José Romualdo de Sousa
Soares,Willames de Albuquerque
Menezes,Rômulo Simões Cezar
dc.subject.por.fl_str_mv CO2 emission
rainy season
dry season
Caatinga
pasture
topic CO2 emission
rainy season
dry season
Caatinga
pasture
description ABSTRACT The CO2 emission from the soil surface, commonly referred to as soil CO2 efflux (ECO2) or soil respiration, is the sum of processes that include root respiration and microbial activity. Measuring this evolution is important to establish sustainable land use models and to estimate global fluxes of carbon, which affect climate change. Despite its importance, few measurements have been made in areas of the semiarid Brazilian Northeast region, and most of them were made using the alkali absorption method (AA), which can underestimate ECO2. Measurements using AA were compared to measurements using the infrared gas analyzer method (IRGA) over ten months (in rainy and dry seasons), during the day and night, in areas of Caatinga (xeric shrubland and thorn forest) and pasture in the Agreste region of the state of Pernambuco. The ECO2 measurements from AA varied little from night to day and throughout the year or in the rainy and dry seasons. However, those obtained from IRGA were higher in the rainy than in the dry season, but also without significant differences from day to night. The values of both methods were similar in the dry season, but in the rainy season they were higher with the IRGA. Therefore, AA seems to have little sensitivity to seasonal variations, in contrast with measurements from the IRGA, and it may underestimate soil ECO2 when it attains higher values. This result indicates that some of the soil ECO2 values determined in areas of the Brazilian semiarid region, and consequently annual C losses, may have been underestimated.
publishDate 2018
dc.date.none.fl_str_mv 2018-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100400
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100400
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/18069657rbcs20160563
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Ciência do Solo
publisher.none.fl_str_mv Sociedade Brasileira de Ciência do Solo
dc.source.none.fl_str_mv Revista Brasileira de Ciência do Solo v.42 2018
reponame:Revista Brasileira de Ciência do Solo (Online)
instname:Sociedade Brasileira de Ciência do Solo (SBCS)
instacron:SBCS
instname_str Sociedade Brasileira de Ciência do Solo (SBCS)
instacron_str SBCS
institution SBCS
reponame_str Revista Brasileira de Ciência do Solo (Online)
collection Revista Brasileira de Ciência do Solo (Online)
repository.name.fl_str_mv Revista Brasileira de Ciência do Solo (Online) - Sociedade Brasileira de Ciência do Solo (SBCS)
repository.mail.fl_str_mv ||sbcs@ufv.br
_version_ 1752126521761333248