Modeling and simulation of relief influence on Eucalyptus forests: Interaction between solar irradiance and productivity
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | LOCUS Repositório Institucional da UFV |
Texto Completo: | http://dx.doi.org/10.1590/0100-67622016000200014 http://www.locus.ufv.br/handle/123456789/16170 |
Resumo: | This study aimed to verify the differences in radiation intensity as a function of distinct relief exposure surfaces and to quantify these effects on the leaf area index (LAI) and other variables expressing eucalyptus forest productivity for simulations in a process-based growth model. The study was carried out at two contrasting edaphoclimatic locations in the Rio Doce basin in Minas Gerais, Brazil. Two stands with 32-year-old plantations were used, allocating fixed plots in locations with northern and southern exposure surfaces. The meteorological data were obtained from two automated weather stations located near the study sites. Solar radiation was corrected for terrain inclination and exposure surfaces, as it is measured based on the plane, perpendicularly to the vertical location. The LAI values collected in the field were used. For the comparative simulations in productivity variation, the mechanistic 3PG model was used, considering the relief exposure surfaces. It was verified that during most of the year, the southern surfaces showed lower availability of incident solar radiation, resulting in up to 66% losses, compared to the same surface considered plane, probably related to its geographical location and higher declivity. Higher values were obtained for the plantings located on the northern surface for the variables LAI, volume and mean annual wood increase, with this tendency being repeated in the 3PG model simulations. |
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Modeling and simulation of relief influence on Eucalyptus forests: Interaction between solar irradiance and productivityTerrain exposure surfacesLAIGlobal solar radiationThis study aimed to verify the differences in radiation intensity as a function of distinct relief exposure surfaces and to quantify these effects on the leaf area index (LAI) and other variables expressing eucalyptus forest productivity for simulations in a process-based growth model. The study was carried out at two contrasting edaphoclimatic locations in the Rio Doce basin in Minas Gerais, Brazil. Two stands with 32-year-old plantations were used, allocating fixed plots in locations with northern and southern exposure surfaces. The meteorological data were obtained from two automated weather stations located near the study sites. Solar radiation was corrected for terrain inclination and exposure surfaces, as it is measured based on the plane, perpendicularly to the vertical location. The LAI values collected in the field were used. For the comparative simulations in productivity variation, the mechanistic 3PG model was used, considering the relief exposure surfaces. It was verified that during most of the year, the southern surfaces showed lower availability of incident solar radiation, resulting in up to 66% losses, compared to the same surface considered plane, probably related to its geographical location and higher declivity. Higher values were obtained for the plantings located on the northern surface for the variables LAI, volume and mean annual wood increase, with this tendency being repeated in the 3PG model simulations.Este trabalho teve por objetivo verificar as diferenças da intensidade da radiação frente às distintas faces de exposição do relevo e quantificar estes efeitos no índice de área foliar (IAF) e outras variáveis que expressam a produtividade de florestas de eucalipto, para simulações em um modelo de crescimento de plantios florestais. O estudo foi realizado em duas localidades de contrastes edafoclimáticos, localizadas na bacia do Rio Doce, MG. Trabalhou-se em dois talhões com plantios em idades de 32 meses, tendo sido alocadas parcelas fixas em locais com a face de exposição norte e sul. Os dados meteorológicos foram obtidos de duas estações meteorológicas automáticas localizadas próximas às localidades de estudo. A radiação solar foi corrigida em função das inclinações efaces de exposição do terreno, tendo em vista que esta é mensurada no plano, perpendicularmente à vertical do local. Foram utilizados os valores do IAF coletados em campo. Para as simulações comparativas na variação da produtividade, utilizou-se o modelo mecanístico 3PG considerando as faces de exposição do relevo. Verificou-se que na maior parte do ano, as faces sul apresentaram menor disponibilidade de radiação solar incidente resultando em perdas de até 66% em comparação à mesma superfície considerada plana, podendo estar relacionada à localização geográfica e maior declividade do terreno nessa face de exposição. Maiores valores foram obtidos para os plantios localizados naface norte nas variáveis IAF, volume e incremento médio anual de madeira. Esta tendência se repetiu nas simulações do modelo 3PG.Revista Árvore2018-01-09T09:58:07Z2018-01-09T09:58:07Z2015-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlepdfapplication/pdf1806-9088http://dx.doi.org/10.1590/0100-67622016000200014http://www.locus.ufv.br/handle/123456789/16170engv. 40, n. 2, p. 319-327, Mar/Abr. 2016Rody, Yhasmin PaivaRibeiro, AristidesOliveira, Aline Santana deLeite, Fernando Palhainfo:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFV2024-07-12T06:37:56Zoai:locus.ufv.br:123456789/16170Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452024-07-12T06:37:56LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false |
dc.title.none.fl_str_mv |
Modeling and simulation of relief influence on Eucalyptus forests: Interaction between solar irradiance and productivity |
title |
Modeling and simulation of relief influence on Eucalyptus forests: Interaction between solar irradiance and productivity |
spellingShingle |
Modeling and simulation of relief influence on Eucalyptus forests: Interaction between solar irradiance and productivity Rody, Yhasmin Paiva Terrain exposure surfaces LAI Global solar radiation |
title_short |
Modeling and simulation of relief influence on Eucalyptus forests: Interaction between solar irradiance and productivity |
title_full |
Modeling and simulation of relief influence on Eucalyptus forests: Interaction between solar irradiance and productivity |
title_fullStr |
Modeling and simulation of relief influence on Eucalyptus forests: Interaction between solar irradiance and productivity |
title_full_unstemmed |
Modeling and simulation of relief influence on Eucalyptus forests: Interaction between solar irradiance and productivity |
title_sort |
Modeling and simulation of relief influence on Eucalyptus forests: Interaction between solar irradiance and productivity |
author |
Rody, Yhasmin Paiva |
author_facet |
Rody, Yhasmin Paiva Ribeiro, Aristides Oliveira, Aline Santana de Leite, Fernando Palha |
author_role |
author |
author2 |
Ribeiro, Aristides Oliveira, Aline Santana de Leite, Fernando Palha |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Rody, Yhasmin Paiva Ribeiro, Aristides Oliveira, Aline Santana de Leite, Fernando Palha |
dc.subject.por.fl_str_mv |
Terrain exposure surfaces LAI Global solar radiation |
topic |
Terrain exposure surfaces LAI Global solar radiation |
description |
This study aimed to verify the differences in radiation intensity as a function of distinct relief exposure surfaces and to quantify these effects on the leaf area index (LAI) and other variables expressing eucalyptus forest productivity for simulations in a process-based growth model. The study was carried out at two contrasting edaphoclimatic locations in the Rio Doce basin in Minas Gerais, Brazil. Two stands with 32-year-old plantations were used, allocating fixed plots in locations with northern and southern exposure surfaces. The meteorological data were obtained from two automated weather stations located near the study sites. Solar radiation was corrected for terrain inclination and exposure surfaces, as it is measured based on the plane, perpendicularly to the vertical location. The LAI values collected in the field were used. For the comparative simulations in productivity variation, the mechanistic 3PG model was used, considering the relief exposure surfaces. It was verified that during most of the year, the southern surfaces showed lower availability of incident solar radiation, resulting in up to 66% losses, compared to the same surface considered plane, probably related to its geographical location and higher declivity. Higher values were obtained for the plantings located on the northern surface for the variables LAI, volume and mean annual wood increase, with this tendency being repeated in the 3PG model simulations. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-12-01 2018-01-09T09:58:07Z 2018-01-09T09:58:07Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
1806-9088 http://dx.doi.org/10.1590/0100-67622016000200014 http://www.locus.ufv.br/handle/123456789/16170 |
identifier_str_mv |
1806-9088 |
url |
http://dx.doi.org/10.1590/0100-67622016000200014 http://www.locus.ufv.br/handle/123456789/16170 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
v. 40, n. 2, p. 319-327, Mar/Abr. 2016 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
pdf application/pdf |
dc.publisher.none.fl_str_mv |
Revista Árvore |
publisher.none.fl_str_mv |
Revista Árvore |
dc.source.none.fl_str_mv |
reponame:LOCUS Repositório Institucional da UFV instname:Universidade Federal de Viçosa (UFV) instacron:UFV |
instname_str |
Universidade Federal de Viçosa (UFV) |
instacron_str |
UFV |
institution |
UFV |
reponame_str |
LOCUS Repositório Institucional da UFV |
collection |
LOCUS Repositório Institucional da UFV |
repository.name.fl_str_mv |
LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV) |
repository.mail.fl_str_mv |
fabiojreis@ufv.br |
_version_ |
1822610566281166848 |