Effects of silvicultural treatments on the dynamics of diametric distribution in an area of the Amazon rainforest using the Weibull function
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Ciência Florestal (Online) |
Texto Completo: | https://periodicos.ufsm.br/cienciaflorestal/article/view/41284 |
Resumo: | This study analyzed the diametric distributions before and after forest management in a rainforest area of the Amazon in the Amapá State, Brazil. It aimed to understand how the diametric distribution of the forest was recovered after 27 years of forest management between 1984 and 2011. For this purpose, data from 40 permanent plots were used. The Weibull function for the diametric distribution was fitted to data from 1984, 1990, and 2011 by applying the Table Curve statistical package over the control treatments T0 (0% exploration and 0% thinning), T07 (25% exploration and 50% thinning), and T11 (35% exploration and 50% thinning). Comparisons between the diametric distributions before and after the forest management were conducted using the χ2 test. After fitting the Weibull function, the results showed good adherence by the Kolmogorov–Smirnov test (p > 0.05) for all treatments and periods. There were no differences in the diametric distributions before and after management for T0. In contrast, diametric distributions were different before and after forest management regarding the intervention levels for T7 and T11. Therefore, for T11, the diametric distribution recovered after management, indicating that forest management during 1984-2011 was enough to recover the diametric distribution to its initial state. |
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Effects of silvicultural treatments on the dynamics of diametric distribution in an area of the Amazon rainforest using the Weibull function Efeitos dos tratamentos silviculturais na dinâmica da distribuição diamétrica em uma área de floresta tropical amazônica com o uso da função Weibullníveis de exploraçãofunção densidade de probabilidade.DesbastesExploitation levelsThinningProbability density functionThis study analyzed the diametric distributions before and after forest management in a rainforest area of the Amazon in the Amapá State, Brazil. It aimed to understand how the diametric distribution of the forest was recovered after 27 years of forest management between 1984 and 2011. For this purpose, data from 40 permanent plots were used. The Weibull function for the diametric distribution was fitted to data from 1984, 1990, and 2011 by applying the Table Curve statistical package over the control treatments T0 (0% exploration and 0% thinning), T07 (25% exploration and 50% thinning), and T11 (35% exploration and 50% thinning). Comparisons between the diametric distributions before and after the forest management were conducted using the χ2 test. After fitting the Weibull function, the results showed good adherence by the Kolmogorov–Smirnov test (p > 0.05) for all treatments and periods. There were no differences in the diametric distributions before and after management for T0. In contrast, diametric distributions were different before and after forest management regarding the intervention levels for T7 and T11. Therefore, for T11, the diametric distribution recovered after management, indicating that forest management during 1984-2011 was enough to recover the diametric distribution to its initial state.Este trabalho analisou as distribuições diamétricas antes e após intervenções silviculturais em uma área de floresta tropical úmida da Amazônia no estado do Amapá, Brasil. O objetivo consistiu em entender de que modo a distribuição diamétrica da floresta foi recuperada depois dos tratamentos silviculturais entre 1984 e 2011, um intervalo de 27 anos. Para essa finalidade, dados de 40 parcelas permanentes foram utilizados. A função Weibull da distribuição diamétrica nos anos de 1984, 1990 e 2011 foi ajustada aos tratamentos controle T0 (0% de exploração e 0% de desbastes), T07 (25% de exploração e 50% de desbastes) e T11 (35% de exploração e 50% de desbastes) através do pacote estatístico Table Curve. As comparações das distribuições diamétricas antes e depois das intervenções silviculturais foram feitas usando o teste de χ2. Os resultados mostraram que os ajustes da função Weibull obtiveram boa aderência pelo teste de Kolmogorov–Smirnov (p > 0,05), em todos os tratamentos e em todos os períodos. Não houve diferenças significativas antes e depois das intervenções para T0. Por outro lado, foram observadas diferenças das distribuições diamétricas antes e depois das intervenções conforme os níveis de intervenção para T7 e T11. Portanto, para T11, a distribuição diamétrica recuperou-se depois das intervenções, o que significa que o período de 1984 a 2011 foi suficiente para a recuperação da distribuição diamétrica ao seu estado inicial.Universidade Federal de Santa Maria2022-09-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdftext/xmlhttps://periodicos.ufsm.br/cienciaflorestal/article/view/4128410.5902/1980509841284Ciência Florestal; Vol. 32 No. 3 (2022); 1684-1697Ciência Florestal; v. 32 n. 3 (2022); 1684-16971980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMporhttps://periodicos.ufsm.br/cienciaflorestal/article/view/41284/49001https://periodicos.ufsm.br/cienciaflorestal/article/view/41284/50968Copyright (c) 2022 Ciência Florestalhttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessBila, Jacob MiguelSanquetta, Carlos RobertoCorte, Ana Paula DallaFreitas, Lucas José Mazzei de2022-12-29T19:55:47Zoai:ojs.pkp.sfu.ca:article/41284Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2022-12-29T19:55:47Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
Effects of silvicultural treatments on the dynamics of diametric distribution in an area of the Amazon rainforest using the Weibull function Efeitos dos tratamentos silviculturais na dinâmica da distribuição diamétrica em uma área de floresta tropical amazônica com o uso da função Weibull |
title |
Effects of silvicultural treatments on the dynamics of diametric distribution in an area of the Amazon rainforest using the Weibull function |
spellingShingle |
Effects of silvicultural treatments on the dynamics of diametric distribution in an area of the Amazon rainforest using the Weibull function Bila, Jacob Miguel níveis de exploração função densidade de probabilidade. Desbastes Exploitation levels Thinning Probability density function |
title_short |
Effects of silvicultural treatments on the dynamics of diametric distribution in an area of the Amazon rainforest using the Weibull function |
title_full |
Effects of silvicultural treatments on the dynamics of diametric distribution in an area of the Amazon rainforest using the Weibull function |
title_fullStr |
Effects of silvicultural treatments on the dynamics of diametric distribution in an area of the Amazon rainforest using the Weibull function |
title_full_unstemmed |
Effects of silvicultural treatments on the dynamics of diametric distribution in an area of the Amazon rainforest using the Weibull function |
title_sort |
Effects of silvicultural treatments on the dynamics of diametric distribution in an area of the Amazon rainforest using the Weibull function |
author |
Bila, Jacob Miguel |
author_facet |
Bila, Jacob Miguel Sanquetta, Carlos Roberto Corte, Ana Paula Dalla Freitas, Lucas José Mazzei de |
author_role |
author |
author2 |
Sanquetta, Carlos Roberto Corte, Ana Paula Dalla Freitas, Lucas José Mazzei de |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Bila, Jacob Miguel Sanquetta, Carlos Roberto Corte, Ana Paula Dalla Freitas, Lucas José Mazzei de |
dc.subject.por.fl_str_mv |
níveis de exploração função densidade de probabilidade. Desbastes Exploitation levels Thinning Probability density function |
topic |
níveis de exploração função densidade de probabilidade. Desbastes Exploitation levels Thinning Probability density function |
description |
This study analyzed the diametric distributions before and after forest management in a rainforest area of the Amazon in the Amapá State, Brazil. It aimed to understand how the diametric distribution of the forest was recovered after 27 years of forest management between 1984 and 2011. For this purpose, data from 40 permanent plots were used. The Weibull function for the diametric distribution was fitted to data from 1984, 1990, and 2011 by applying the Table Curve statistical package over the control treatments T0 (0% exploration and 0% thinning), T07 (25% exploration and 50% thinning), and T11 (35% exploration and 50% thinning). Comparisons between the diametric distributions before and after the forest management were conducted using the χ2 test. After fitting the Weibull function, the results showed good adherence by the Kolmogorov–Smirnov test (p > 0.05) for all treatments and periods. There were no differences in the diametric distributions before and after management for T0. In contrast, diametric distributions were different before and after forest management regarding the intervention levels for T7 and T11. Therefore, for T11, the diametric distribution recovered after management, indicating that forest management during 1984-2011 was enough to recover the diametric distribution to its initial state. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-09-22 |
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://periodicos.ufsm.br/cienciaflorestal/article/view/41284 10.5902/1980509841284 |
url |
https://periodicos.ufsm.br/cienciaflorestal/article/view/41284 |
identifier_str_mv |
10.5902/1980509841284 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsm.br/cienciaflorestal/article/view/41284/49001 https://periodicos.ufsm.br/cienciaflorestal/article/view/41284/50968 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2022 Ciência Florestal http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2022 Ciência Florestal http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf text/xml |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Florestal; Vol. 32 No. 3 (2022); 1684-1697 Ciência Florestal; v. 32 n. 3 (2022); 1684-1697 1980-5098 0103-9954 reponame:Ciência Florestal (Online) instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Ciência Florestal (Online) |
collection |
Ciência Florestal (Online) |
repository.name.fl_str_mv |
Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br |
_version_ |
1799944135224852480 |