Natural regeneration dynamics of Couratari guianensis in a tropical forest selectively logged in Moju, state of Para, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Revista de Ciências Agrárias (Belém. Online) |
Texto Completo: | https://ajaes.ufra.edu.br/index.php/ajaes/article/view/828 |
Resumo: | Studies on natural regeneration of timber tree species are of great scientific interest because they are essential for the proper development and implementation of management plans and silvicultural treatments, allowing sustainable use of forest resources. This study aimed to evaluate the population dynamics of Couratari guianensis Aubl., Family Lecythidaceae, a wood species known as tauari, in a terra firme tropical rain forest, selectively exploited in Moju, state of Pará, Brazil, over 12 years after harvesting, which originated gaps with sizes ranging between 231 and 748 m2, of which nine were used in the study. The center of each gap was determined and four transects of 10 × 50 m were marked in the North, South, East and West directions. In order to evaluate natural regeneration, three 2 × 2 m plots were implanted on each transect at the distances of 20 and 40 m off the edge. We used the mathematical models Natural Regeneration Rate (RR%), Recruitment (R%) and Mortality (M%) for the study of natural dynamics. Data were analyzed in the BioStat software by analysis of variance on three factors (center and directions, forest gap size class and study period). No significant differences were found in RR%, R% and M% values regarding the three factors. In general, Couratari guianensis Aubl. behaves as an intermediate plant species in terms of demand for light. |
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Natural regeneration dynamics of Couratari guianensis in a tropical forest selectively logged in Moju, state of Para, BrazilDinâmica da regeneração natural de Couratari guianensis em uma floresta tropical seletivamente em Moju, no estado do Pará, BrasilStudies on natural regeneration of timber tree species are of great scientific interest because they are essential for the proper development and implementation of management plans and silvicultural treatments, allowing sustainable use of forest resources. This study aimed to evaluate the population dynamics of Couratari guianensis Aubl., Family Lecythidaceae, a wood species known as tauari, in a terra firme tropical rain forest, selectively exploited in Moju, state of Pará, Brazil, over 12 years after harvesting, which originated gaps with sizes ranging between 231 and 748 m2, of which nine were used in the study. The center of each gap was determined and four transects of 10 × 50 m were marked in the North, South, East and West directions. In order to evaluate natural regeneration, three 2 × 2 m plots were implanted on each transect at the distances of 20 and 40 m off the edge. We used the mathematical models Natural Regeneration Rate (RR%), Recruitment (R%) and Mortality (M%) for the study of natural dynamics. Data were analyzed in the BioStat software by analysis of variance on three factors (center and directions, forest gap size class and study period). No significant differences were found in RR%, R% and M% values regarding the three factors. In general, Couratari guianensis Aubl. behaves as an intermediate plant species in terms of demand for light.Estudos sobre a regeneração natural de espécies arbóreas de madeira são de grande interesse científico , porque eles são essenciais para o bom desenvolvimento e implementação de planos de manejo e tratamentos silviculturais , permitindo o uso sustentável dos recursos florestais . Este estudo teve como objetivo avaliar a dinâmica populacional de Couratari guianensis Aubl . , Lecythidaceae Família, uma espécie de madeira conhecidas como tauari , numa firme floresta tropical terra , seletivamente exploradas em Moju , no estado do Pará , Brasil, 12 anos após a colheita , o que lacunas originadas com tamanhos que variam entre 231 e 748 m2, dos quais nove foram utilizados no estudo. O centro de cada intervalo foi determinado e quatro transectos de 10 × 50 m foram marcados nas regiões Norte, Sul, Leste e Oeste direções . A fim de avaliar a regeneração natural , três de 2 × 2 m parcelas foram implantadas em cada transecto nas distâncias de 20 e 40 m para fora da borda . Utilizou-se o modelo matemático Taxa de Regeneração Natural (RR %) , Recrutamento (R %) e mortalidade (M %) para o estudo da dinâmica natural . Os dados foram analisados no software BioStat por análise de variância de três fatores ( centro e direções, floresta lacuna classe de tamanho e período de estudo ) . Não foram encontradas diferenças significativas em RR % , R % e% em relação aos valores de M três fatores . Em geral, Couratari guianensis Aubl . comporta-se como uma espécie de planta intermediária em termos de demanda por luz.Universidade Federal Rural da Amazônia/UFRA2013-06-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ajaes.ufra.edu.br/index.php/ajaes/article/view/828Amazonian Journal of Agricultural Sciences Journal of Agricultural and Environmental Sciences; Vol 56 No 2 (2013): RCA; 112-119Revista de Ciências Agrárias Amazonian Journal of Agricultural and Environmental Sciences; v. 56 n. 2 (2013): RCA; 112-1192177-87601517-591Xreponame:Revista de Ciências Agrárias (Belém. Online)instname:Universidade Federal Rural da Amazônia (UFRA)instacron:UFRAporhttps://ajaes.ufra.edu.br/index.php/ajaes/article/view/828/303Jardim, Fernando Cristovam da SilvaViana, Ana Cecília Nascimentoinfo:eu-repo/semantics/openAccess2017-07-18T18:52:55Zoai:ojs.www.periodicos.ufra.edu.br:article/828Revistahttps://ajaes.ufra.edu.br/index.php/ajaes/PUBhttps://ajaes.ufra.edu.br/index.php/ajaes/oaiallan.lobato@ufra.edu.br || ajaes.suporte@gmail.com2177-87601517-591Xopendoar:2017-07-18T18:52:55Revista de Ciências Agrárias (Belém. Online) - Universidade Federal Rural da Amazônia (UFRA)false |
dc.title.none.fl_str_mv |
Natural regeneration dynamics of Couratari guianensis in a tropical forest selectively logged in Moju, state of Para, Brazil Dinâmica da regeneração natural de Couratari guianensis em uma floresta tropical seletivamente em Moju, no estado do Pará, Brasil |
title |
Natural regeneration dynamics of Couratari guianensis in a tropical forest selectively logged in Moju, state of Para, Brazil |
spellingShingle |
Natural regeneration dynamics of Couratari guianensis in a tropical forest selectively logged in Moju, state of Para, Brazil Jardim, Fernando Cristovam da Silva |
title_short |
Natural regeneration dynamics of Couratari guianensis in a tropical forest selectively logged in Moju, state of Para, Brazil |
title_full |
Natural regeneration dynamics of Couratari guianensis in a tropical forest selectively logged in Moju, state of Para, Brazil |
title_fullStr |
Natural regeneration dynamics of Couratari guianensis in a tropical forest selectively logged in Moju, state of Para, Brazil |
title_full_unstemmed |
Natural regeneration dynamics of Couratari guianensis in a tropical forest selectively logged in Moju, state of Para, Brazil |
title_sort |
Natural regeneration dynamics of Couratari guianensis in a tropical forest selectively logged in Moju, state of Para, Brazil |
author |
Jardim, Fernando Cristovam da Silva |
author_facet |
Jardim, Fernando Cristovam da Silva Viana, Ana Cecília Nascimento |
author_role |
author |
author2 |
Viana, Ana Cecília Nascimento |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Jardim, Fernando Cristovam da Silva Viana, Ana Cecília Nascimento |
description |
Studies on natural regeneration of timber tree species are of great scientific interest because they are essential for the proper development and implementation of management plans and silvicultural treatments, allowing sustainable use of forest resources. This study aimed to evaluate the population dynamics of Couratari guianensis Aubl., Family Lecythidaceae, a wood species known as tauari, in a terra firme tropical rain forest, selectively exploited in Moju, state of Pará, Brazil, over 12 years after harvesting, which originated gaps with sizes ranging between 231 and 748 m2, of which nine were used in the study. The center of each gap was determined and four transects of 10 × 50 m were marked in the North, South, East and West directions. In order to evaluate natural regeneration, three 2 × 2 m plots were implanted on each transect at the distances of 20 and 40 m off the edge. We used the mathematical models Natural Regeneration Rate (RR%), Recruitment (R%) and Mortality (M%) for the study of natural dynamics. Data were analyzed in the BioStat software by analysis of variance on three factors (center and directions, forest gap size class and study period). No significant differences were found in RR%, R% and M% values regarding the three factors. In general, Couratari guianensis Aubl. behaves as an intermediate plant species in terms of demand for light. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-06-03 |
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 |
https://ajaes.ufra.edu.br/index.php/ajaes/article/view/828 |
url |
https://ajaes.ufra.edu.br/index.php/ajaes/article/view/828 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://ajaes.ufra.edu.br/index.php/ajaes/article/view/828/303 |
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 Federal Rural da Amazônia/UFRA |
publisher.none.fl_str_mv |
Universidade Federal Rural da Amazônia/UFRA |
dc.source.none.fl_str_mv |
Amazonian Journal of Agricultural Sciences Journal of Agricultural and Environmental Sciences; Vol 56 No 2 (2013): RCA; 112-119 Revista de Ciências Agrárias Amazonian Journal of Agricultural and Environmental Sciences; v. 56 n. 2 (2013): RCA; 112-119 2177-8760 1517-591X reponame:Revista de Ciências Agrárias (Belém. Online) instname:Universidade Federal Rural da Amazônia (UFRA) instacron:UFRA |
instname_str |
Universidade Federal Rural da Amazônia (UFRA) |
instacron_str |
UFRA |
institution |
UFRA |
reponame_str |
Revista de Ciências Agrárias (Belém. Online) |
collection |
Revista de Ciências Agrárias (Belém. Online) |
repository.name.fl_str_mv |
Revista de Ciências Agrárias (Belém. Online) - Universidade Federal Rural da Amazônia (UFRA) |
repository.mail.fl_str_mv |
allan.lobato@ufra.edu.br || ajaes.suporte@gmail.com |
_version_ |
1797231627471945728 |