POPULATION STRUCTURE AND REGENERATION OF ARBOREAL SPECIES IN THE NATIONAL FOREST OF SÃO FRANCISCO DE PAULA, RIO GRANDE DO SUL STATE

Detalhes bibliográficos
Autor(a) principal: Avila, Angela Luciana de
Data de Publicação: 2016
Outros Autores: Araujo, Maristela Machado, Longhi, Solon Jonas, Schneider, Paulo Renato, Carvalho, João Olegário Pereira de
Tipo de documento: Artigo
Idioma: por
Título da fonte: Ciência Florestal (Online)
Texto Completo: https://periodicos.ufsm.br/cienciaflorestal/article/view/24211
Resumo: The aim of this study was to characterize the population structure and aspects of regeneration of Araucaria angustifolia (Bertol.) Kuntze, Blepharocalyx salicifolius (Kunth) O. Berg and Ilex paraguariensis A. St.-Hil. in different environmental and disturbance conditions in the National Forest of São Francisco de Paula, RS state. Six conglomerates of one hectare were used, with 16 plots (20 x 20 m) each, where the species were sampled in three size classes. The size class II (SC II – diameter at breast height (DBH) ≥ 9.55 cm) was sampled in 96 plots, the SC I (4.8 ≤ DBH < 9.55 cm) in 36 subplots of 10 x 10 m, and the established natural regeneration (ENR) (1 ≤ DBH < 4.8 cm) in 36 cells of 3.16 x 3.16 m. The seedling bank (SB - height ≥ 30 cm and DBH < 1 cm), the seed rain (SR) and the soil seed bank (SSB) were sampled in all plots of 20 x 20 m. The data were analysed by taking into account all the different vegetation groups together and separately for each cluster identified in a previous study. For SC II, the frequency distribution of DBH was analysed combined with the analysis of absolute density and frequency for all different life stages (SR, SSB, SB, ENR, SC I and SC II). The results indicated high variability in density of these species among the different life stages and environmental conditions. Araucaria angustifolia presented gaps in the regeneration process in areas that had low disturbance records, not presenting the "reverse-J" distribution (SC II) and with lower regeneration capacity in relation to the other species (SR, SSB and SB). Ilex paraguariensis and Blepharocalyx salicifolius seemed to present higher population stability in environment with low level of human interference (SC II). The first species demonstrated preference for soils with good drainage, while the second species for humid soils. Moreover, gaps in the regeneration process of different populations were detected and changed according to environmental conditions and disturbance records. Therefore, the results suggest the importance of taking into account the different vegetation groups, the species auto-ecology and to apply possible interventions that aim to improve regeneration and balance the population dynamics of these species.
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spelling POPULATION STRUCTURE AND REGENERATION OF ARBOREAL SPECIES IN THE NATIONAL FOREST OF SÃO FRANCISCO DE PAULA, RIO GRANDE DO SUL STATEESTRUTURA POPULACIONAL E REGENERAÇÃO DE ESPÉCIES ARBÓREAS NA FLORESTA NACIONAL DE SÃO FRANCISCO DE PAULA, RIO GRANDE DO SULAraucaria angustifoliaBlepharocalyx salicifoliusMixed Ombrophilous Forestfrequency distribution.Este estudo teve como objetivo caracterizar a estrutura populacional e os aspectos da regeneração de Araucaria angustifolia (Bertol.) KuntzeBlepharocalyx salicifolius (Kunth) O. Berg e Ilex paraguariensis A. St.-Hil em diferentes condições ambientais eThe aim of this study was to characterize the population structure and aspects of regeneration of Araucaria angustifolia (Bertol.) Kuntze, Blepharocalyx salicifolius (Kunth) O. Berg and Ilex paraguariensis A. St.-Hil. in different environmental and disturbance conditions in the National Forest of São Francisco de Paula, RS state. Six conglomerates of one hectare were used, with 16 plots (20 x 20 m) each, where the species were sampled in three size classes. The size class II (SC II – diameter at breast height (DBH) ≥ 9.55 cm) was sampled in 96 plots, the SC I (4.8 ≤ DBH < 9.55 cm) in 36 subplots of 10 x 10 m, and the established natural regeneration (ENR) (1 ≤ DBH < 4.8 cm) in 36 cells of 3.16 x 3.16 m. The seedling bank (SB - height ≥ 30 cm and DBH < 1 cm), the seed rain (SR) and the soil seed bank (SSB) were sampled in all plots of 20 x 20 m. The data were analysed by taking into account all the different vegetation groups together and separately for each cluster identified in a previous study. For SC II, the frequency distribution of DBH was analysed combined with the analysis of absolute density and frequency for all different life stages (SR, SSB, SB, ENR, SC I and SC II). The results indicated high variability in density of these species among the different life stages and environmental conditions. Araucaria angustifolia presented gaps in the regeneration process in areas that had low disturbance records, not presenting the "reverse-J" distribution (SC II) and with lower regeneration capacity in relation to the other species (SR, SSB and SB). Ilex paraguariensis and Blepharocalyx salicifolius seemed to present higher population stability in environment with low level of human interference (SC II). The first species demonstrated preference for soils with good drainage, while the second species for humid soils. Moreover, gaps in the regeneration process of different populations were detected and changed according to environmental conditions and disturbance records. Therefore, the results suggest the importance of taking into account the different vegetation groups, the species auto-ecology and to apply possible interventions that aim to improve regeneration and balance the population dynamics of these species.Este estudo teve como objetivo caracterizar a estrutura populacional e os aspectos da regeneração de Araucaria angustifolia (Bertol.) Kuntze, Blepharocalyx salicifolius (Kunth) O. Berg e Ilex paraguariensis A. St.-Hil em diferentes condições ambientais e histórico de perturbação na Floresta Nacional de São Francisco de Paula - RS. Foram utilizados seis conglomerados de um hectare, com 16 parcelas (20 x 20 m) cada, nos quais foram amostradas as espécies em três classes de tamanho. A classe de tamanho II (CT II - diâmetro a altura do peito (DAP) ≥ 9,55 cm) foi inventariada nas 96 parcelas, a CT I (4,8 ≤ DAP < 9,55 cm) em 36 subparcelas de 10 x 10 m e a regeneração natural estabelecida (RNE) (1 ≤ DAP < 4,8 cm) em 36 células de 3,16 x 3,16 m. Em todas as parcelas de 20 x 20 m foram avaliados o banco de plântulas (BP - altura ≥ 30 cm e DAP < 1 cm), a chuva de sementes (CS) e o banco de sementes do solo (BS). Os dados foram analisados considerando todos os ambientes conjunta e separadamente para os agrupamentos identificados em estudo prévio na área. Foram avaliadas a estrutura diamétrica para a CT II e densidade e frequência absoluta para todas as etapas do ciclo de vida (CS, BS, BP, RNE, CT I e CT II). Os resultados indicaram grande variabilidade na densidade destas espécies nos diferentes ciclos de vida e ambientes florestais. Araucaria angustifolia demonstrou falhas no processo de regeneração em ambiente com menor histórico de perturbação, não apresentando padrão de distribuição “J invertido” (CT II) e menor capacidade de regeneração em relação às demais espécies nos mecanismos de regeneração (CS, BS e BP). Ilex paraguariensis e Blepharocalyx salicifolius apresentaram melhor estabilidade populacional em ambiente com menor nível de interferência antrópica (CT II). A primeira espécie apresentou melhores condições de regeneração em ambientes de solo com boa drenagem e a segunda espécie demonstrou preferência para solo mais úmido. Além disso, falhas no processo de regeneração das populações foram detectadas e variaram de acordo com as condições ambientais e o histórico de perturbação de cada área. Assim, identifica-se a importância de considerar os diferentes ambientes florestais, a autoecologia das espécies e de aplicar possíveis intervenções que visem melhorar a regeneração e equilibrar a dinâmica populacional destas espécies.Universidade Federal de Santa Maria2016-09-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsm.br/cienciaflorestal/article/view/2421110.5902/1980509824211Ciência Florestal; Vol. 26 No. 3 (2016); 825-838Ciência Florestal; v. 26 n. 3 (2016); 825-8381980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMporhttps://periodicos.ufsm.br/cienciaflorestal/article/view/24211/14166Copyright (c) 2016 Ciência Florestalinfo:eu-repo/semantics/openAccessAvila, Angela Luciana deAraujo, Maristela MachadoLonghi, Solon JonasSchneider, Paulo RenatoCarvalho, João Olegário Pereira de2017-04-06T11:56:09Zoai:ojs.pkp.sfu.ca:article/24211Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2017-04-06T11:56:09Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false
dc.title.none.fl_str_mv POPULATION STRUCTURE AND REGENERATION OF ARBOREAL SPECIES IN THE NATIONAL FOREST OF SÃO FRANCISCO DE PAULA, RIO GRANDE DO SUL STATE
ESTRUTURA POPULACIONAL E REGENERAÇÃO DE ESPÉCIES ARBÓREAS NA FLORESTA NACIONAL DE SÃO FRANCISCO DE PAULA, RIO GRANDE DO SUL
title POPULATION STRUCTURE AND REGENERATION OF ARBOREAL SPECIES IN THE NATIONAL FOREST OF SÃO FRANCISCO DE PAULA, RIO GRANDE DO SUL STATE
spellingShingle POPULATION STRUCTURE AND REGENERATION OF ARBOREAL SPECIES IN THE NATIONAL FOREST OF SÃO FRANCISCO DE PAULA, RIO GRANDE DO SUL STATE
Avila, Angela Luciana de
Araucaria angustifolia
Blepharocalyx salicifolius
Mixed Ombrophilous Forest
frequency distribution.
Este estudo teve como objetivo caracterizar a estrutura populacional e os aspectos da regeneração de Araucaria angustifolia (Bertol.) Kuntze
Blepharocalyx salicifolius (Kunth) O. Berg e Ilex paraguariensis A. St.-Hil em diferentes condições ambientais e
title_short POPULATION STRUCTURE AND REGENERATION OF ARBOREAL SPECIES IN THE NATIONAL FOREST OF SÃO FRANCISCO DE PAULA, RIO GRANDE DO SUL STATE
title_full POPULATION STRUCTURE AND REGENERATION OF ARBOREAL SPECIES IN THE NATIONAL FOREST OF SÃO FRANCISCO DE PAULA, RIO GRANDE DO SUL STATE
title_fullStr POPULATION STRUCTURE AND REGENERATION OF ARBOREAL SPECIES IN THE NATIONAL FOREST OF SÃO FRANCISCO DE PAULA, RIO GRANDE DO SUL STATE
title_full_unstemmed POPULATION STRUCTURE AND REGENERATION OF ARBOREAL SPECIES IN THE NATIONAL FOREST OF SÃO FRANCISCO DE PAULA, RIO GRANDE DO SUL STATE
title_sort POPULATION STRUCTURE AND REGENERATION OF ARBOREAL SPECIES IN THE NATIONAL FOREST OF SÃO FRANCISCO DE PAULA, RIO GRANDE DO SUL STATE
author Avila, Angela Luciana de
author_facet Avila, Angela Luciana de
Araujo, Maristela Machado
Longhi, Solon Jonas
Schneider, Paulo Renato
Carvalho, João Olegário Pereira de
author_role author
author2 Araujo, Maristela Machado
Longhi, Solon Jonas
Schneider, Paulo Renato
Carvalho, João Olegário Pereira de
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Avila, Angela Luciana de
Araujo, Maristela Machado
Longhi, Solon Jonas
Schneider, Paulo Renato
Carvalho, João Olegário Pereira de
dc.subject.por.fl_str_mv Araucaria angustifolia
Blepharocalyx salicifolius
Mixed Ombrophilous Forest
frequency distribution.
Este estudo teve como objetivo caracterizar a estrutura populacional e os aspectos da regeneração de Araucaria angustifolia (Bertol.) Kuntze
Blepharocalyx salicifolius (Kunth) O. Berg e Ilex paraguariensis A. St.-Hil em diferentes condições ambientais e
topic Araucaria angustifolia
Blepharocalyx salicifolius
Mixed Ombrophilous Forest
frequency distribution.
Este estudo teve como objetivo caracterizar a estrutura populacional e os aspectos da regeneração de Araucaria angustifolia (Bertol.) Kuntze
Blepharocalyx salicifolius (Kunth) O. Berg e Ilex paraguariensis A. St.-Hil em diferentes condições ambientais e
description The aim of this study was to characterize the population structure and aspects of regeneration of Araucaria angustifolia (Bertol.) Kuntze, Blepharocalyx salicifolius (Kunth) O. Berg and Ilex paraguariensis A. St.-Hil. in different environmental and disturbance conditions in the National Forest of São Francisco de Paula, RS state. Six conglomerates of one hectare were used, with 16 plots (20 x 20 m) each, where the species were sampled in three size classes. The size class II (SC II – diameter at breast height (DBH) ≥ 9.55 cm) was sampled in 96 plots, the SC I (4.8 ≤ DBH < 9.55 cm) in 36 subplots of 10 x 10 m, and the established natural regeneration (ENR) (1 ≤ DBH < 4.8 cm) in 36 cells of 3.16 x 3.16 m. The seedling bank (SB - height ≥ 30 cm and DBH < 1 cm), the seed rain (SR) and the soil seed bank (SSB) were sampled in all plots of 20 x 20 m. The data were analysed by taking into account all the different vegetation groups together and separately for each cluster identified in a previous study. For SC II, the frequency distribution of DBH was analysed combined with the analysis of absolute density and frequency for all different life stages (SR, SSB, SB, ENR, SC I and SC II). The results indicated high variability in density of these species among the different life stages and environmental conditions. Araucaria angustifolia presented gaps in the regeneration process in areas that had low disturbance records, not presenting the "reverse-J" distribution (SC II) and with lower regeneration capacity in relation to the other species (SR, SSB and SB). Ilex paraguariensis and Blepharocalyx salicifolius seemed to present higher population stability in environment with low level of human interference (SC II). The first species demonstrated preference for soils with good drainage, while the second species for humid soils. Moreover, gaps in the regeneration process of different populations were detected and changed according to environmental conditions and disturbance records. Therefore, the results suggest the importance of taking into account the different vegetation groups, the species auto-ecology and to apply possible interventions that aim to improve regeneration and balance the population dynamics of these species.
publishDate 2016
dc.date.none.fl_str_mv 2016-09-30
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/24211
10.5902/1980509824211
url https://periodicos.ufsm.br/cienciaflorestal/article/view/24211
identifier_str_mv 10.5902/1980509824211
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.ufsm.br/cienciaflorestal/article/view/24211/14166
dc.rights.driver.fl_str_mv Copyright (c) 2016 Ciência Florestal
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2016 Ciência Florestal
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
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. 26 No. 3 (2016); 825-838
Ciência Florestal; v. 26 n. 3 (2016); 825-838
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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