Growth modeling of Cryptomeria japonica by partial trunk analysis
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Florestal Brasileira (Online) |
Texto Completo: | https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1371 |
Resumo: | This study aimed to evaluate the growth pattern of Cryptomeria japonica increment (L. F.) D. Don. and to describe the probability distribution in stands stablished at the municipality of Rio Negro, Paraná State. Twenty trees were sampled in a 34 years-old stand, with 3 m x 2 m spacing. Wood disks were taken from each tree at 1.3 m above the ground (DBH) to perform partial stem analysis. Diameter growth series without bark were used to generate the average cumulative growth curves for DBH (cm), mean annual increment (MAI) and current annual increment (CAI). From the increment data, the frequency distribution was evaluated by means of probability density functions (pdfs). The mean annual increment for DBH was 0.78 cm year-1 and the age of intersection of CAI and MAI curves was between the 7th and 8th years. It was found that near 43% of the species increments are concentrated bellow 0.5 cm. The results are useful to define appropriate management strategies for the species for sites similar to the studying regions, defining for example ages of silvicultural intervention, such as thinning. |
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Growth modeling of Cryptomeria japonica by partial trunk analysisModelagem do crescimento de Cryptomeria japonica por análise de tronco parcialAnálise de probabilidadesIncrementoManejo florestalProbability analysisIncrementForest managementThis study aimed to evaluate the growth pattern of Cryptomeria japonica increment (L. F.) D. Don. and to describe the probability distribution in stands stablished at the municipality of Rio Negro, Paraná State. Twenty trees were sampled in a 34 years-old stand, with 3 m x 2 m spacing. Wood disks were taken from each tree at 1.3 m above the ground (DBH) to perform partial stem analysis. Diameter growth series without bark were used to generate the average cumulative growth curves for DBH (cm), mean annual increment (MAI) and current annual increment (CAI). From the increment data, the frequency distribution was evaluated by means of probability density functions (pdfs). The mean annual increment for DBH was 0.78 cm year-1 and the age of intersection of CAI and MAI curves was between the 7th and 8th years. It was found that near 43% of the species increments are concentrated bellow 0.5 cm. The results are useful to define appropriate management strategies for the species for sites similar to the studying regions, defining for example ages of silvicultural intervention, such as thinning.Este trabalho objetivou avaliar o padrão de crescimento bem com descrever a distribuição probabilística do incremento corrente anual em diâmetro de Cryptomeria japonica (L.F.) D. Don. em povoamento instalado no município de Rio Negro, PR. Foram amostradas 20 árvores em um plantio com 34 anos de idade e espaçamento 3 m x 2 m. Foram coletados discos a 1,3 m do solo (DAP) para a realização da análise de tronco parcial de cada árvore. A série de crescimento em diâmetro sem casca obtida foi utilizada para gerar as curvas de crescimento acumulado médio para a variável DAP (cm), de incremento médio anual (IMA) e incremento corrente anual (ICA). A partir dos dados de ICA, avaliou-se a distribuição de frequência desses por meio de funções de densidade de probabilidade (fdp’s). O ICA do DAP foi de 0,78 cm ano-1 e a idade de encontro das curvas de ICA e IMA ocorreu entre o 7° e o 8° ano. Identificou-se que cerca de 43% dos incrementos da espécie concentram-se até 0,5 cm. Os resultados obtidos são úteis para a definição de estratégias para o manejo da espécie em regiões semelhantes ao local de estudo, definindo-se, por exemplo, idades de intervenção silvicultural, como o desbaste.Embrapa Florestas2017-06-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/137110.4336/2017.pfb.37.90.1371Pesquisa Florestal Brasileira; v. 37 n. 90 (2017): abr./jun.; 93-98Pesquisa Florestal Brasileira; Vol. 37 No. 90 (2017): abr./jun.; 93-981983-26051809-3647reponame:Pesquisa Florestal Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1371/563Copyright (c) 2017 Vinícius Morais Coutinho, Ana Paula Dalla Corte, Carlos Roberto Sanquetta, Aurélio Lourenço Rodrigues, Mateus Niroh Inoue Sanquettahttps://creativecommons.org/licenses/by-nc-nd/4.0info:eu-repo/semantics/openAccessCoutinho, Vinícius MoraisCorte, Ana Paula DallaSanquetta, Carlos RobertoRodrigues, Aurélio LourençoSanquetta, Mateus Niroh Inoue2018-01-07T19:01:10Zoai:pfb.cnpf.embrapa.br/pfb:article/1371Revistahttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/PUBhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/oaipfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br1983-26051809-3647opendoar:2018-01-07T19:01:10Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Growth modeling of Cryptomeria japonica by partial trunk analysis Modelagem do crescimento de Cryptomeria japonica por análise de tronco parcial |
title |
Growth modeling of Cryptomeria japonica by partial trunk analysis |
spellingShingle |
Growth modeling of Cryptomeria japonica by partial trunk analysis Coutinho, Vinícius Morais Análise de probabilidades Incremento Manejo florestal Probability analysis Increment Forest management |
title_short |
Growth modeling of Cryptomeria japonica by partial trunk analysis |
title_full |
Growth modeling of Cryptomeria japonica by partial trunk analysis |
title_fullStr |
Growth modeling of Cryptomeria japonica by partial trunk analysis |
title_full_unstemmed |
Growth modeling of Cryptomeria japonica by partial trunk analysis |
title_sort |
Growth modeling of Cryptomeria japonica by partial trunk analysis |
author |
Coutinho, Vinícius Morais |
author_facet |
Coutinho, Vinícius Morais Corte, Ana Paula Dalla Sanquetta, Carlos Roberto Rodrigues, Aurélio Lourenço Sanquetta, Mateus Niroh Inoue |
author_role |
author |
author2 |
Corte, Ana Paula Dalla Sanquetta, Carlos Roberto Rodrigues, Aurélio Lourenço Sanquetta, Mateus Niroh Inoue |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Coutinho, Vinícius Morais Corte, Ana Paula Dalla Sanquetta, Carlos Roberto Rodrigues, Aurélio Lourenço Sanquetta, Mateus Niroh Inoue |
dc.subject.por.fl_str_mv |
Análise de probabilidades Incremento Manejo florestal Probability analysis Increment Forest management |
topic |
Análise de probabilidades Incremento Manejo florestal Probability analysis Increment Forest management |
description |
This study aimed to evaluate the growth pattern of Cryptomeria japonica increment (L. F.) D. Don. and to describe the probability distribution in stands stablished at the municipality of Rio Negro, Paraná State. Twenty trees were sampled in a 34 years-old stand, with 3 m x 2 m spacing. Wood disks were taken from each tree at 1.3 m above the ground (DBH) to perform partial stem analysis. Diameter growth series without bark were used to generate the average cumulative growth curves for DBH (cm), mean annual increment (MAI) and current annual increment (CAI). From the increment data, the frequency distribution was evaluated by means of probability density functions (pdfs). The mean annual increment for DBH was 0.78 cm year-1 and the age of intersection of CAI and MAI curves was between the 7th and 8th years. It was found that near 43% of the species increments are concentrated bellow 0.5 cm. The results are useful to define appropriate management strategies for the species for sites similar to the studying regions, defining for example ages of silvicultural intervention, such as thinning. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-06-30 |
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://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1371 10.4336/2017.pfb.37.90.1371 |
url |
https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1371 |
identifier_str_mv |
10.4336/2017.pfb.37.90.1371 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1371/563 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by-nc-nd/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-nd/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Embrapa Florestas |
publisher.none.fl_str_mv |
Embrapa Florestas |
dc.source.none.fl_str_mv |
Pesquisa Florestal Brasileira; v. 37 n. 90 (2017): abr./jun.; 93-98 Pesquisa Florestal Brasileira; Vol. 37 No. 90 (2017): abr./jun.; 93-98 1983-2605 1809-3647 reponame:Pesquisa Florestal Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Florestal Brasileira (Online) |
collection |
Pesquisa Florestal Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br |
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1783370936095866880 |