Recruitment exceeds mortality in subtropical secondary forest after conventional selective logging
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Ciência Florestal (Online) |
Texto Completo: | https://periodicos.ufsm.br/cienciaflorestal/article/view/55265 |
Resumo: | Studies on the dynamics of managed forests are essential for planning and executing management strategies. Timber harvesting can modify recruitment rates, mortality, gain and loss of basal area of the remaining stand. In secondary forests, especially in the Atlantic Forest, these studies are still scarce. Our study hypothesis is that the management intervention stimulates the growth of the remaining trees, overcoming the reduction of the growth of the damaged trees and the harvest mortality. We investigated the dynamics of the remaining trees and recruits (in number of individuals and basal area), with DBH ≥ 5 cm, by ecological group of the species, and the damage to the remaining adult individuals. We measured eleven permanent plots with 1.600m² each, before and four years after being harvested in a secondary forest in southern Brazil. We found that the different harvesting intensities significantly influence the forest dynamics, special the annual recruitment rates, while basal area gain/loss showed a weaker relationship to logging intensity. However, the mortality rates are similar in control plots and managed plots. We also observed that in the managed plots, the recruitment rate (5.3 ± 1.9% year-¹) exceeded mortality (2.3 ± 1.2% year-¹). Among ecological groups, we found less recruitment of climax species than of secondary species. In general, the proportion of damage of remaining trees decreased over time. We conclude that the management has modified the forest dynamics, indicating that planning, including adequate cutting limits and low impact harvesting methods are essential for achieving the sustainability of forest management. |
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Recruitment exceeds mortality in subtropical secondary forest after conventional selective loggingRecrutamento supera a mortalidade em floresta subtropical secundária após colheita de madeira convencionalForest dynamicsLogging damagesHarvest intensityConventional loggingDinâmica florestalDanos de colheitaIntensidade de colheitaColheita convencionalStudies on the dynamics of managed forests are essential for planning and executing management strategies. Timber harvesting can modify recruitment rates, mortality, gain and loss of basal area of the remaining stand. In secondary forests, especially in the Atlantic Forest, these studies are still scarce. Our study hypothesis is that the management intervention stimulates the growth of the remaining trees, overcoming the reduction of the growth of the damaged trees and the harvest mortality. We investigated the dynamics of the remaining trees and recruits (in number of individuals and basal area), with DBH ≥ 5 cm, by ecological group of the species, and the damage to the remaining adult individuals. We measured eleven permanent plots with 1.600m² each, before and four years after being harvested in a secondary forest in southern Brazil. We found that the different harvesting intensities significantly influence the forest dynamics, special the annual recruitment rates, while basal area gain/loss showed a weaker relationship to logging intensity. However, the mortality rates are similar in control plots and managed plots. We also observed that in the managed plots, the recruitment rate (5.3 ± 1.9% year-¹) exceeded mortality (2.3 ± 1.2% year-¹). Among ecological groups, we found less recruitment of climax species than of secondary species. In general, the proportion of damage of remaining trees decreased over time. We conclude that the management has modified the forest dynamics, indicating that planning, including adequate cutting limits and low impact harvesting methods are essential for achieving the sustainability of forest management.Estudos de dinâmica de florestas manejadas são fundamentais para planejamento e execução de estratégias de condução das florestas. As intervenções de colheita madeireira podem modificar taxas de recrutamento, mortalidade, ganho e perda de área basal da floresta remanescente. Em florestas secundárias, especialmente na Mata Atlântica, estes estudos ainda são escassos. Nossa hipótese de pesquisa é que a intervenção de manejo estimule o crescimento das árvores remanescentes, superando a redução do crescimento das árvores danificadas e mortalidade da colheita. Foi investigado a dinâmica das árvores remanescentes e dos recrutas (em número de indivíduos e área basal), com DAP ≥ 5 cm, por grupo ecológico da espécie, e os danos nos indivíduos adultos remanescentes. Medimos onze parcelas permanentes, com área de 1600 m², antes e quatro anos após a colheita de madeira em uma floresta secundária no sul do Brasil. Verificamos que as diferentes intensidades de colheita influenciam significativamente a dinâmica da floresta, especialmente as taxas de recrutamento anual, enquanto perda e ganho de área basal apresentaram uma relação mais fraca com a intensidade de corte; as taxas de mortalidade, no entanto, são semelhantes em parcelas de controle e parcelas manejadas. Também observamos que nas parcelas manejadas a taxa de recrutamento (5.3 ± 1.9 % /ano) superou a mortalidade (2.3 ± 1.2 % / ano). Entre os grupos ecológicos, encontramos menos recrutamento de espécies clímax do que de espécies secundárias. Em geral, a proporção de danos às árvores remanescentes diminuiu com o tempo. Concluímos que o manejo modificou a dinâmica florestal, indicando que o planejamento, incluindo limites de corte adequados e métodos de colheita de baixo impacto são essenciais para o alcance de um manejo florestal sustentável.Universidade Federal de Santa Maria2022-03-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontextoinfo:eu-repo/semantics/otherapplication/pdftext/xmlhttps://periodicos.ufsm.br/cienciaflorestal/article/view/5526510.5902/1980509855265Ciência Florestal; Vol. 32 No. 1 (2022); 333-350Ciência Florestal; v. 32 n. 1 (2022); 333-3501980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMenghttps://periodicos.ufsm.br/cienciaflorestal/article/view/55265/46362https://periodicos.ufsm.br/cienciaflorestal/article/view/55265/50702Copyright (c) 2022 Ciência Florestalhttps://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessLikoski, Janine KervaldVibrans, Alexander ChristianSilva, Daniel Augusto da2023-03-20T13:27:33Zoai:ojs.pkp.sfu.ca:article/55265Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2023-03-20T13:27:33Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
Recruitment exceeds mortality in subtropical secondary forest after conventional selective logging Recrutamento supera a mortalidade em floresta subtropical secundária após colheita de madeira convencional |
title |
Recruitment exceeds mortality in subtropical secondary forest after conventional selective logging |
spellingShingle |
Recruitment exceeds mortality in subtropical secondary forest after conventional selective logging Likoski, Janine Kervald Forest dynamics Logging damages Harvest intensity Conventional logging Dinâmica florestal Danos de colheita Intensidade de colheita Colheita convencional |
title_short |
Recruitment exceeds mortality in subtropical secondary forest after conventional selective logging |
title_full |
Recruitment exceeds mortality in subtropical secondary forest after conventional selective logging |
title_fullStr |
Recruitment exceeds mortality in subtropical secondary forest after conventional selective logging |
title_full_unstemmed |
Recruitment exceeds mortality in subtropical secondary forest after conventional selective logging |
title_sort |
Recruitment exceeds mortality in subtropical secondary forest after conventional selective logging |
author |
Likoski, Janine Kervald |
author_facet |
Likoski, Janine Kervald Vibrans, Alexander Christian Silva, Daniel Augusto da |
author_role |
author |
author2 |
Vibrans, Alexander Christian Silva, Daniel Augusto da |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Likoski, Janine Kervald Vibrans, Alexander Christian Silva, Daniel Augusto da |
dc.subject.por.fl_str_mv |
Forest dynamics Logging damages Harvest intensity Conventional logging Dinâmica florestal Danos de colheita Intensidade de colheita Colheita convencional |
topic |
Forest dynamics Logging damages Harvest intensity Conventional logging Dinâmica florestal Danos de colheita Intensidade de colheita Colheita convencional |
description |
Studies on the dynamics of managed forests are essential for planning and executing management strategies. Timber harvesting can modify recruitment rates, mortality, gain and loss of basal area of the remaining stand. In secondary forests, especially in the Atlantic Forest, these studies are still scarce. Our study hypothesis is that the management intervention stimulates the growth of the remaining trees, overcoming the reduction of the growth of the damaged trees and the harvest mortality. We investigated the dynamics of the remaining trees and recruits (in number of individuals and basal area), with DBH ≥ 5 cm, by ecological group of the species, and the damage to the remaining adult individuals. We measured eleven permanent plots with 1.600m² each, before and four years after being harvested in a secondary forest in southern Brazil. We found that the different harvesting intensities significantly influence the forest dynamics, special the annual recruitment rates, while basal area gain/loss showed a weaker relationship to logging intensity. However, the mortality rates are similar in control plots and managed plots. We also observed that in the managed plots, the recruitment rate (5.3 ± 1.9% year-¹) exceeded mortality (2.3 ± 1.2% year-¹). Among ecological groups, we found less recruitment of climax species than of secondary species. In general, the proportion of damage of remaining trees decreased over time. We conclude that the management has modified the forest dynamics, indicating that planning, including adequate cutting limits and low impact harvesting methods are essential for achieving the sustainability of forest management. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-03-25 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion texto info:eu-repo/semantics/other |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufsm.br/cienciaflorestal/article/view/55265 10.5902/1980509855265 |
url |
https://periodicos.ufsm.br/cienciaflorestal/article/view/55265 |
identifier_str_mv |
10.5902/1980509855265 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufsm.br/cienciaflorestal/article/view/55265/46362 https://periodicos.ufsm.br/cienciaflorestal/article/view/55265/50702 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2022 Ciência Florestal https://creativecommons.org/licenses/by-nc/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2022 Ciência Florestal https://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. 1 (2022); 333-350 Ciência Florestal; v. 32 n. 1 (2022); 333-350 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 |
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1799944135805763584 |