CH4 and N2O fluxes from planted forests and native Cerrado ecosystems in Brazil
Autor(a) principal: | |
---|---|
Data de Publicação: | 2021 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Scientia Agrícola (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000100302 |
Resumo: | ABSTRACT Forest soils are N2O sources and commonly act as CH4 sinks. This study evaluated the dynamics of the CH4 and N2O fluxes of soils under Eucalyptus plantations and native Cerrado vegetation, as well as possible interactions between environmental factors and fluxes. The study was carried out in the Distrito Federal, Brazil, during 26 months, in three areas: in two stands of the hybrid Eucalyptus urophylla × Eucalyptus grandis, planted in 2011 (E1), and in 2009 (E2) and native Cerrado vegetation (CE). Measurements to determine the fluxes in a closed static chamber were carried out from Oct 2013 to Nov 2015. Soil and climate factors were monitored. During the study period, the mean CH4 fluxes were –22.48, –8.38 and –1.31 μg CH4 m–2 h–1 and the mean N2O fluxes 5.45, 4.85 and 3.85 μg N2O m–2 h–1 from E1, E2 and CE, respectively. Seasonality affected plantations in the studied sites. Cumulative CH4 influxes were calculated (year-1: –1.86 to -0.63 kg ha–1 yr–1; year-2: –1.85 to –1.34 kg ha–1 yr–1). Cumulative N2O fluxes in the three sites were ≤ 0.85 kg ha–1 yr–1. The change in land use from Cerrado to Eucalyptus plantations did not significantly changed regarding greenhouse gases (GHG), compared to the native vegetation. Flux rates of both gases (N2O and CH4) were low. Temporal variations in GHG fluxes and different ages of the stands did not cause significant differences in cumulative annual fluxes. |
id |
USP-18_093efd017304e262306436dcf6d3c246 |
---|---|
oai_identifier_str |
oai:scielo:S0103-90162021000100302 |
network_acronym_str |
USP-18 |
network_name_str |
Scientia Agrícola (Online) |
repository_id_str |
|
spelling |
CH4 and N2O fluxes from planted forests and native Cerrado ecosystems in BrazilEucalyptusgreenhouse gasesforest stand agesavannaABSTRACT Forest soils are N2O sources and commonly act as CH4 sinks. This study evaluated the dynamics of the CH4 and N2O fluxes of soils under Eucalyptus plantations and native Cerrado vegetation, as well as possible interactions between environmental factors and fluxes. The study was carried out in the Distrito Federal, Brazil, during 26 months, in three areas: in two stands of the hybrid Eucalyptus urophylla × Eucalyptus grandis, planted in 2011 (E1), and in 2009 (E2) and native Cerrado vegetation (CE). Measurements to determine the fluxes in a closed static chamber were carried out from Oct 2013 to Nov 2015. Soil and climate factors were monitored. During the study period, the mean CH4 fluxes were –22.48, –8.38 and –1.31 μg CH4 m–2 h–1 and the mean N2O fluxes 5.45, 4.85 and 3.85 μg N2O m–2 h–1 from E1, E2 and CE, respectively. Seasonality affected plantations in the studied sites. Cumulative CH4 influxes were calculated (year-1: –1.86 to -0.63 kg ha–1 yr–1; year-2: –1.85 to –1.34 kg ha–1 yr–1). Cumulative N2O fluxes in the three sites were ≤ 0.85 kg ha–1 yr–1. The change in land use from Cerrado to Eucalyptus plantations did not significantly changed regarding greenhouse gases (GHG), compared to the native vegetation. Flux rates of both gases (N2O and CH4) were low. Temporal variations in GHG fluxes and different ages of the stands did not cause significant differences in cumulative annual fluxes.Escola Superior de Agricultura "Luiz de Queiroz"2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000100302Scientia Agricola v.78 n.1 2021reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/1678-992x-2018-0355info:eu-repo/semantics/openAccessOliveira,Alexsandra Duarte deRibeiro,Fabiana PiontekowskiFerreira,Eloisa Aparecida BellezaMalaquias,Juaci VitoriaGatto,AlcidesZuim,Diana RegazziPinheiro,Luciano de AlmeidaPulrolnik,KarinaSoares,João Paulo GuimarãesCarvalho,Arminda Moreira deeng2020-03-10T00:00:00Zoai:scielo:S0103-90162021000100302Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2020-03-10T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
CH4 and N2O fluxes from planted forests and native Cerrado ecosystems in Brazil |
title |
CH4 and N2O fluxes from planted forests and native Cerrado ecosystems in Brazil |
spellingShingle |
CH4 and N2O fluxes from planted forests and native Cerrado ecosystems in Brazil Oliveira,Alexsandra Duarte de Eucalyptus greenhouse gases forest stand age savanna |
title_short |
CH4 and N2O fluxes from planted forests and native Cerrado ecosystems in Brazil |
title_full |
CH4 and N2O fluxes from planted forests and native Cerrado ecosystems in Brazil |
title_fullStr |
CH4 and N2O fluxes from planted forests and native Cerrado ecosystems in Brazil |
title_full_unstemmed |
CH4 and N2O fluxes from planted forests and native Cerrado ecosystems in Brazil |
title_sort |
CH4 and N2O fluxes from planted forests and native Cerrado ecosystems in Brazil |
author |
Oliveira,Alexsandra Duarte de |
author_facet |
Oliveira,Alexsandra Duarte de Ribeiro,Fabiana Piontekowski Ferreira,Eloisa Aparecida Belleza Malaquias,Juaci Vitoria Gatto,Alcides Zuim,Diana Regazzi Pinheiro,Luciano de Almeida Pulrolnik,Karina Soares,João Paulo Guimarães Carvalho,Arminda Moreira de |
author_role |
author |
author2 |
Ribeiro,Fabiana Piontekowski Ferreira,Eloisa Aparecida Belleza Malaquias,Juaci Vitoria Gatto,Alcides Zuim,Diana Regazzi Pinheiro,Luciano de Almeida Pulrolnik,Karina Soares,João Paulo Guimarães Carvalho,Arminda Moreira de |
author2_role |
author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Oliveira,Alexsandra Duarte de Ribeiro,Fabiana Piontekowski Ferreira,Eloisa Aparecida Belleza Malaquias,Juaci Vitoria Gatto,Alcides Zuim,Diana Regazzi Pinheiro,Luciano de Almeida Pulrolnik,Karina Soares,João Paulo Guimarães Carvalho,Arminda Moreira de |
dc.subject.por.fl_str_mv |
Eucalyptus greenhouse gases forest stand age savanna |
topic |
Eucalyptus greenhouse gases forest stand age savanna |
description |
ABSTRACT Forest soils are N2O sources and commonly act as CH4 sinks. This study evaluated the dynamics of the CH4 and N2O fluxes of soils under Eucalyptus plantations and native Cerrado vegetation, as well as possible interactions between environmental factors and fluxes. The study was carried out in the Distrito Federal, Brazil, during 26 months, in three areas: in two stands of the hybrid Eucalyptus urophylla × Eucalyptus grandis, planted in 2011 (E1), and in 2009 (E2) and native Cerrado vegetation (CE). Measurements to determine the fluxes in a closed static chamber were carried out from Oct 2013 to Nov 2015. Soil and climate factors were monitored. During the study period, the mean CH4 fluxes were –22.48, –8.38 and –1.31 μg CH4 m–2 h–1 and the mean N2O fluxes 5.45, 4.85 and 3.85 μg N2O m–2 h–1 from E1, E2 and CE, respectively. Seasonality affected plantations in the studied sites. Cumulative CH4 influxes were calculated (year-1: –1.86 to -0.63 kg ha–1 yr–1; year-2: –1.85 to –1.34 kg ha–1 yr–1). Cumulative N2O fluxes in the three sites were ≤ 0.85 kg ha–1 yr–1. The change in land use from Cerrado to Eucalyptus plantations did not significantly changed regarding greenhouse gases (GHG), compared to the native vegetation. Flux rates of both gases (N2O and CH4) were low. Temporal variations in GHG fluxes and different ages of the stands did not cause significant differences in cumulative annual fluxes. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-01 |
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=S0103-90162021000100302 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000100302 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1678-992x-2018-0355 |
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 |
Escola Superior de Agricultura "Luiz de Queiroz" |
publisher.none.fl_str_mv |
Escola Superior de Agricultura "Luiz de Queiroz" |
dc.source.none.fl_str_mv |
Scientia Agricola v.78 n.1 2021 reponame:Scientia Agrícola (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Scientia Agrícola (Online) |
collection |
Scientia Agrícola (Online) |
repository.name.fl_str_mv |
Scientia Agrícola (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
scientia@usp.br||alleoni@usp.br |
_version_ |
1748936465583177728 |