Evapotranspiration and control mechanisms in managed Amazonian forest in, Pará, Brazil.
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1074598 |
Resumo: | This work examines whether management causes changes in evapotranspiration (ET) surface conductance (gs), aerodynamic conductance (ga) and the decoupling factor (Ω) in managed and natural forest sites in a tropical rain forest in the Amazon. The study was conducted in the Tapajós National Forest (FNT) in managed (logged) and natural (unlogged) forests, which have micrometeorological towers for data capture. For ET estimation, the Penman-Monteith (PM) and Eddy Covariance (EC) equations were used. The models were significantly different only for unlogged (PM 134.9±15.9 mm.month-1 and EC 100.9±11.1 mm.month-1), while the means of the logged site were PM 111.1±15.7 mm.month-1 and EC 108.5±18.3 mm.month-1. Each area has different characteristics for the surface variables, ga, gs and Ω, and therefore the sites were different from each other for the study variables. However, logged ET did not differ for the PM, while EC decreased in the year after the management intervention, and was then followed by an increase. |
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Evapotranspiration and control mechanisms in managed Amazonian forest in, Pará, Brazil.Vapor de águaCondutância aerodinâmicaFator de dissociaçãoTapajósFloresta TropicalThis work examines whether management causes changes in evapotranspiration (ET) surface conductance (gs), aerodynamic conductance (ga) and the decoupling factor (Ω) in managed and natural forest sites in a tropical rain forest in the Amazon. The study was conducted in the Tapajós National Forest (FNT) in managed (logged) and natural (unlogged) forests, which have micrometeorological towers for data capture. For ET estimation, the Penman-Monteith (PM) and Eddy Covariance (EC) equations were used. The models were significantly different only for unlogged (PM 134.9±15.9 mm.month-1 and EC 100.9±11.1 mm.month-1), while the means of the logged site were PM 111.1±15.7 mm.month-1 and EC 108.5±18.3 mm.month-1. Each area has different characteristics for the surface variables, ga, gs and Ω, and therefore the sites were different from each other for the study variables. However, logged ET did not differ for the PM, while EC decreased in the year after the management intervention, and was then followed by an increase.Diego Ribeiro de Aguiar, INPA; RAIMUNDO COSME DE OLIVEIRA JUNIOR, CPATU; Troy Patrick Beldini, UFOPA; Rodrigo da Silva, UFOPA; Raphael Tapajós, UFOPA.AGUIAR, D. R. deOLIVEIRA JUNIOR, R. C. deBELDINI, T. P.SILVA, R. daTAPAJÓS, R.2017-09-02T06:14:41Z2017-09-02T06:14:41Z2017-08-2920172017-09-02T06:14:41Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleAfrican Journal of Agricultural Research, v. 12, n. 18, p. 1577-1586, May 2017.http://www.alice.cnptia.embrapa.br/alice/handle/doc/107459810.5897/AJAR2017.12146enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-09-12T07:34:47Zoai:www.alice.cnptia.embrapa.br:doc/1074598Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-09-12T07:34:47falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-09-12T07:34:47Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Evapotranspiration and control mechanisms in managed Amazonian forest in, Pará, Brazil. |
title |
Evapotranspiration and control mechanisms in managed Amazonian forest in, Pará, Brazil. |
spellingShingle |
Evapotranspiration and control mechanisms in managed Amazonian forest in, Pará, Brazil. AGUIAR, D. R. de Vapor de água Condutância aerodinâmica Fator de dissociação Tapajós Floresta Tropical |
title_short |
Evapotranspiration and control mechanisms in managed Amazonian forest in, Pará, Brazil. |
title_full |
Evapotranspiration and control mechanisms in managed Amazonian forest in, Pará, Brazil. |
title_fullStr |
Evapotranspiration and control mechanisms in managed Amazonian forest in, Pará, Brazil. |
title_full_unstemmed |
Evapotranspiration and control mechanisms in managed Amazonian forest in, Pará, Brazil. |
title_sort |
Evapotranspiration and control mechanisms in managed Amazonian forest in, Pará, Brazil. |
author |
AGUIAR, D. R. de |
author_facet |
AGUIAR, D. R. de OLIVEIRA JUNIOR, R. C. de BELDINI, T. P. SILVA, R. da TAPAJÓS, R. |
author_role |
author |
author2 |
OLIVEIRA JUNIOR, R. C. de BELDINI, T. P. SILVA, R. da TAPAJÓS, R. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Diego Ribeiro de Aguiar, INPA; RAIMUNDO COSME DE OLIVEIRA JUNIOR, CPATU; Troy Patrick Beldini, UFOPA; Rodrigo da Silva, UFOPA; Raphael Tapajós, UFOPA. |
dc.contributor.author.fl_str_mv |
AGUIAR, D. R. de OLIVEIRA JUNIOR, R. C. de BELDINI, T. P. SILVA, R. da TAPAJÓS, R. |
dc.subject.por.fl_str_mv |
Vapor de água Condutância aerodinâmica Fator de dissociação Tapajós Floresta Tropical |
topic |
Vapor de água Condutância aerodinâmica Fator de dissociação Tapajós Floresta Tropical |
description |
This work examines whether management causes changes in evapotranspiration (ET) surface conductance (gs), aerodynamic conductance (ga) and the decoupling factor (Ω) in managed and natural forest sites in a tropical rain forest in the Amazon. The study was conducted in the Tapajós National Forest (FNT) in managed (logged) and natural (unlogged) forests, which have micrometeorological towers for data capture. For ET estimation, the Penman-Monteith (PM) and Eddy Covariance (EC) equations were used. The models were significantly different only for unlogged (PM 134.9±15.9 mm.month-1 and EC 100.9±11.1 mm.month-1), while the means of the logged site were PM 111.1±15.7 mm.month-1 and EC 108.5±18.3 mm.month-1. Each area has different characteristics for the surface variables, ga, gs and Ω, and therefore the sites were different from each other for the study variables. However, logged ET did not differ for the PM, while EC decreased in the year after the management intervention, and was then followed by an increase. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-09-02T06:14:41Z 2017-09-02T06:14:41Z 2017-08-29 2017 2017-09-02T06:14:41Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
African Journal of Agricultural Research, v. 12, n. 18, p. 1577-1586, May 2017. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1074598 10.5897/AJAR2017.12146 |
identifier_str_mv |
African Journal of Agricultural Research, v. 12, n. 18, p. 1577-1586, May 2017. 10.5897/AJAR2017.12146 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1074598 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503441615159296 |