Seasonal variability of the relationship between the photosynthetically active radiation and the global radiation at the river Doce basin, Minas Gerais State - DOI: 10.4025/actasciagron.v28i3.970
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Acta Scientiarum. Agronomy (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/970 |
Resumo: | The knowledge of the Photosynthetically Active Radiation (PAR) is important to different areas of vegetal physiology and agricultural sciences. Estimation models of the PAR based on the Global Radiation (GR) are extremely useful, since the GR is conventionally measured at the meteorological stations. Thus, the seasonal variability of the relationship PAR/GR was analyzed in five areas located at the river Doce basin, Minas Gerais State, Brazil, considering the dry and wet periods of the years 2001 to 2004. The relationships PAR/GR obtained for the dry and wet periods, and also to all data, presented agreement with those ones determined by several researchers in different areas of the world. Results showed that the relationships PAR/GR generally tend to be greater during the wet periods when compared with the dry ones. By this work, it could be concluded that there is interannual variability of this relationship, showing thus, the need to consider this variability to estimate the PAR based on GR appropriately. |
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Seasonal variability of the relationship between the photosynthetically active radiation and the global radiation at the river Doce basin, Minas Gerais State - DOI: 10.4025/actasciagron.v28i3.970Variabilidade sazonal da relação entre a radiação fotossinteticamente ativa e a radiação global na bacia do rio Doce, Estado de Minas Gerais - DOI: 10.4025/actasciagron.v28i3.970relação RFA/Rgsensores de radiaçãoprecipitação5.03.00.00-8 Engenharia AgrícolaThe knowledge of the Photosynthetically Active Radiation (PAR) is important to different areas of vegetal physiology and agricultural sciences. Estimation models of the PAR based on the Global Radiation (GR) are extremely useful, since the GR is conventionally measured at the meteorological stations. Thus, the seasonal variability of the relationship PAR/GR was analyzed in five areas located at the river Doce basin, Minas Gerais State, Brazil, considering the dry and wet periods of the years 2001 to 2004. The relationships PAR/GR obtained for the dry and wet periods, and also to all data, presented agreement with those ones determined by several researchers in different areas of the world. Results showed that the relationships PAR/GR generally tend to be greater during the wet periods when compared with the dry ones. By this work, it could be concluded that there is interannual variability of this relationship, showing thus, the need to consider this variability to estimate the PAR based on GR appropriately.O conhecimento da Radiação Fotossinteticamente Ativa (RFA) é importante para diferentes áreas relacionadas à fisiologia vegetal e ciências agrárias. Modelos de estimativa de RFA a partir da Radiação Global (Rg) são extremamente úteis, visto que a Rg é convencionalmente medida nas estações meteorológicas. Assim, analisou-se a variabilidade sazonal da relação RFA/Rg em cinco áreas localizadas na bacia do rio Doce, Estado de Minas Gerais, considerando-se os períodos secos e chuvosos dos anos de 2001 a 2004. As relações RFA/Rg obtidas para os períodos secos e chuvosos, assim como para todos os dados, apresentaram concordância com as relações determinadas por diversos pesquisadores em diferentes áreas do mundo. Analisando-se os resultados, constatou-se que, de maneira geral, as relações RFA/Rg tendem a ser superiores durante os períodos chuvosos comparativamente aos secos. Por este estudo, pôde-se concluir que existe variação interanual desta relação, demonstrando assim a necessidade de se considerar esta variabilidade para estimar adequadamente a RFA a partir da Rg.Universidade Estadual de Maringá2008-03-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/97010.4025/actasciagron.v28i3.970Acta Scientiarum. Agronomy; Vol 28 No 3 (2006); 427-431Acta Scientiarum. Agronomy; v. 28 n. 3 (2006); 427-4311807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/970/485Steidle Neto, Antonio JoséRibeiro, AristidesZolnier, SérgioLeite, Fernando Palhainfo:eu-repo/semantics/openAccess2022-11-23T18:37:18Zoai:periodicos.uem.br/ojs:article/970Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2022-11-23T18:37:18Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Seasonal variability of the relationship between the photosynthetically active radiation and the global radiation at the river Doce basin, Minas Gerais State - DOI: 10.4025/actasciagron.v28i3.970 Variabilidade sazonal da relação entre a radiação fotossinteticamente ativa e a radiação global na bacia do rio Doce, Estado de Minas Gerais - DOI: 10.4025/actasciagron.v28i3.970 |
title |
Seasonal variability of the relationship between the photosynthetically active radiation and the global radiation at the river Doce basin, Minas Gerais State - DOI: 10.4025/actasciagron.v28i3.970 |
spellingShingle |
Seasonal variability of the relationship between the photosynthetically active radiation and the global radiation at the river Doce basin, Minas Gerais State - DOI: 10.4025/actasciagron.v28i3.970 Steidle Neto, Antonio José relação RFA/Rg sensores de radiação precipitação 5.03.00.00-8 Engenharia Agrícola |
title_short |
Seasonal variability of the relationship between the photosynthetically active radiation and the global radiation at the river Doce basin, Minas Gerais State - DOI: 10.4025/actasciagron.v28i3.970 |
title_full |
Seasonal variability of the relationship between the photosynthetically active radiation and the global radiation at the river Doce basin, Minas Gerais State - DOI: 10.4025/actasciagron.v28i3.970 |
title_fullStr |
Seasonal variability of the relationship between the photosynthetically active radiation and the global radiation at the river Doce basin, Minas Gerais State - DOI: 10.4025/actasciagron.v28i3.970 |
title_full_unstemmed |
Seasonal variability of the relationship between the photosynthetically active radiation and the global radiation at the river Doce basin, Minas Gerais State - DOI: 10.4025/actasciagron.v28i3.970 |
title_sort |
Seasonal variability of the relationship between the photosynthetically active radiation and the global radiation at the river Doce basin, Minas Gerais State - DOI: 10.4025/actasciagron.v28i3.970 |
author |
Steidle Neto, Antonio José |
author_facet |
Steidle Neto, Antonio José Ribeiro, Aristides Zolnier, Sérgio Leite, Fernando Palha |
author_role |
author |
author2 |
Ribeiro, Aristides Zolnier, Sérgio Leite, Fernando Palha |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Steidle Neto, Antonio José Ribeiro, Aristides Zolnier, Sérgio Leite, Fernando Palha |
dc.subject.por.fl_str_mv |
relação RFA/Rg sensores de radiação precipitação 5.03.00.00-8 Engenharia Agrícola |
topic |
relação RFA/Rg sensores de radiação precipitação 5.03.00.00-8 Engenharia Agrícola |
description |
The knowledge of the Photosynthetically Active Radiation (PAR) is important to different areas of vegetal physiology and agricultural sciences. Estimation models of the PAR based on the Global Radiation (GR) are extremely useful, since the GR is conventionally measured at the meteorological stations. Thus, the seasonal variability of the relationship PAR/GR was analyzed in five areas located at the river Doce basin, Minas Gerais State, Brazil, considering the dry and wet periods of the years 2001 to 2004. The relationships PAR/GR obtained for the dry and wet periods, and also to all data, presented agreement with those ones determined by several researchers in different areas of the world. Results showed that the relationships PAR/GR generally tend to be greater during the wet periods when compared with the dry ones. By this work, it could be concluded that there is interannual variability of this relationship, showing thus, the need to consider this variability to estimate the PAR based on GR appropriately. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-03-04 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/970 10.4025/actasciagron.v28i3.970 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/970 |
identifier_str_mv |
10.4025/actasciagron.v28i3.970 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/970/485 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Agronomy; Vol 28 No 3 (2006); 427-431 Acta Scientiarum. Agronomy; v. 28 n. 3 (2006); 427-431 1807-8621 1679-9275 reponame:Acta Scientiarum. Agronomy (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum. Agronomy (Online) |
collection |
Acta Scientiarum. Agronomy (Online) |
repository.name.fl_str_mv |
Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br |
_version_ |
1750315301412536320 |