Estimation of the offer of forest biomass in populations of Pinus taeda L. after cultural interventions

Detalhes bibliográficos
Autor(a) principal: Ferreira, Juliana Ceccato
Data de Publicação: 2019
Outros Autores: Stähelin, Thielly Schmidt Furtado, Jesus, Márcia Silva de, Muñiz, Graciela Inês Bolzon de, Brand, Martha Andreia, Freitas, Thaís Pereira
Tipo de documento: Artigo
Idioma: por
Título da fonte: Ciência Florestal (Online)
Texto Completo: https://periodicos.ufsm.br/cienciaflorestal/article/view/15187
Resumo: Along with the determination of how much of forest biomass is generated after the cultural interventions, it is possible to define areas that can be exploited. Thus, the objective of this work was to quantify and estimate the biomass supply of Pinus taeda L. available after cultural interventions. The experiment was carried out in populations in the cities of Paraná and Santa Catarina states, with ages of 3 years (first pruning), 5 years (second pruning), 7 years (third pruning), 11 years (first thinning), 19 years (second thinning), 23 and 33 years (harvesting). For each age, 10 trees were sampled and the components of the leaves, twigs, canopy and bark were quantified. After harvesting at 23 years old there was greater availability of individual biomass (372.6 kg. tree-1) and per unit area (144.4 t.ha-1), being composed mainly of twigs (69.3%), followed by leaves (17.9%), bark (11.0%) and canopy (1.8%) per unit area. The correlation between the mass of the components of the biomass per tree and the independent variables was significant and higher to 0.52. The lower correlation was observed between these and the mass of canopy. The regression models selected to estimate the mass of biomass from the independent variables had R²adju higher than 83%, low standard deviations and low coefficients of variation.
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spelling Estimation of the offer of forest biomass in populations of Pinus taeda L. after cultural interventionsEstimativa da oferta de biomassa florestal em povoamentos de Pinus taeda L. após intervenções culturaisForest quantificationMultiple use of forestsPost-harvest residuesQuantificação florestalUso múltiplo das florestasResíduos pós-colheitaAlong with the determination of how much of forest biomass is generated after the cultural interventions, it is possible to define areas that can be exploited. Thus, the objective of this work was to quantify and estimate the biomass supply of Pinus taeda L. available after cultural interventions. The experiment was carried out in populations in the cities of Paraná and Santa Catarina states, with ages of 3 years (first pruning), 5 years (second pruning), 7 years (third pruning), 11 years (first thinning), 19 years (second thinning), 23 and 33 years (harvesting). For each age, 10 trees were sampled and the components of the leaves, twigs, canopy and bark were quantified. After harvesting at 23 years old there was greater availability of individual biomass (372.6 kg. tree-1) and per unit area (144.4 t.ha-1), being composed mainly of twigs (69.3%), followed by leaves (17.9%), bark (11.0%) and canopy (1.8%) per unit area. The correlation between the mass of the components of the biomass per tree and the independent variables was significant and higher to 0.52. The lower correlation was observed between these and the mass of canopy. The regression models selected to estimate the mass of biomass from the independent variables had R²adju higher than 83%, low standard deviations and low coefficients of variation.Com a determinação do quanto de biomassa florestal é gerada após as intervenções culturais é possível definir as áreas passíveis de exploração. Com isso, o objetivo do trabalho foi quantificar e estimar a oferta de biomassa de Pinus taeda L. disponível após as intervenções culturais. O experimento foi realizado em reflorestamentos nos municípios dos estados do Paraná e Santa Catarina, com idades de 3 anos (primeira desrama), 5 anos (segunda desrama), 7 anos (terceira desrama), 11 anos (primeiro desbaste) 19 anos (segundo desbaste), 23 e 33 anos (cortes rasos). Para cada idade foram amostradas 10 árvores e quantificados os componentes acículas, galhos, ponteira e casca. Após o corte raso, aos 23 anos houve maior disponibilidade de biomassa individual (372,6 kg.árv-1) e por unidade de área (144,4 t.ha-1), sendo composto principalmente por galhos (69,3%), seguido das acículas (17,9%), casca (11,0%) e ponteira (1,8%) por unidade de área. A correlação entre a massa dos componentes da biomassa por árvore e as variáveis independentes foi significativa e superior a 0,52. A menor correlação foi observada entre estas e a quantidade ofertada de ponteiras. Os modelos de regressão selecionados para estimar a massa de biomassa em função das variáveis independentes tiveram R²aju superiores a 83%, baixos desvios padrões e coeficientes de variação. Universidade Federal de Santa Maria2019-09-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsm.br/cienciaflorestal/article/view/1518710.5902/1980509815187Ciência Florestal; Vol. 29 No. 3 (2019); 1459-1468Ciência Florestal; v. 29 n. 3 (2019); 1459-14681980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMporhttps://periodicos.ufsm.br/cienciaflorestal/article/view/15187/pdfCopyright (c) 2019 Ciência Florestalinfo:eu-repo/semantics/openAccessFerreira, Juliana CeccatoStähelin, Thielly Schmidt FurtadoJesus, Márcia Silva deMuñiz, Graciela Inês Bolzon deBrand, Martha AndreiaFreitas, Thaís Pereira2019-10-01T13:06:32Zoai:ojs.pkp.sfu.ca:article/15187Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2019-10-01T13:06:32Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false
dc.title.none.fl_str_mv Estimation of the offer of forest biomass in populations of Pinus taeda L. after cultural interventions
Estimativa da oferta de biomassa florestal em povoamentos de Pinus taeda L. após intervenções culturais
title Estimation of the offer of forest biomass in populations of Pinus taeda L. after cultural interventions
spellingShingle Estimation of the offer of forest biomass in populations of Pinus taeda L. after cultural interventions
Ferreira, Juliana Ceccato
Forest quantification
Multiple use of forests
Post-harvest residues
Quantificação florestal
Uso múltiplo das florestas
Resíduos pós-colheita
title_short Estimation of the offer of forest biomass in populations of Pinus taeda L. after cultural interventions
title_full Estimation of the offer of forest biomass in populations of Pinus taeda L. after cultural interventions
title_fullStr Estimation of the offer of forest biomass in populations of Pinus taeda L. after cultural interventions
title_full_unstemmed Estimation of the offer of forest biomass in populations of Pinus taeda L. after cultural interventions
title_sort Estimation of the offer of forest biomass in populations of Pinus taeda L. after cultural interventions
author Ferreira, Juliana Ceccato
author_facet Ferreira, Juliana Ceccato
Stähelin, Thielly Schmidt Furtado
Jesus, Márcia Silva de
Muñiz, Graciela Inês Bolzon de
Brand, Martha Andreia
Freitas, Thaís Pereira
author_role author
author2 Stähelin, Thielly Schmidt Furtado
Jesus, Márcia Silva de
Muñiz, Graciela Inês Bolzon de
Brand, Martha Andreia
Freitas, Thaís Pereira
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Ferreira, Juliana Ceccato
Stähelin, Thielly Schmidt Furtado
Jesus, Márcia Silva de
Muñiz, Graciela Inês Bolzon de
Brand, Martha Andreia
Freitas, Thaís Pereira
dc.subject.por.fl_str_mv Forest quantification
Multiple use of forests
Post-harvest residues
Quantificação florestal
Uso múltiplo das florestas
Resíduos pós-colheita
topic Forest quantification
Multiple use of forests
Post-harvest residues
Quantificação florestal
Uso múltiplo das florestas
Resíduos pós-colheita
description Along with the determination of how much of forest biomass is generated after the cultural interventions, it is possible to define areas that can be exploited. Thus, the objective of this work was to quantify and estimate the biomass supply of Pinus taeda L. available after cultural interventions. The experiment was carried out in populations in the cities of Paraná and Santa Catarina states, with ages of 3 years (first pruning), 5 years (second pruning), 7 years (third pruning), 11 years (first thinning), 19 years (second thinning), 23 and 33 years (harvesting). For each age, 10 trees were sampled and the components of the leaves, twigs, canopy and bark were quantified. After harvesting at 23 years old there was greater availability of individual biomass (372.6 kg. tree-1) and per unit area (144.4 t.ha-1), being composed mainly of twigs (69.3%), followed by leaves (17.9%), bark (11.0%) and canopy (1.8%) per unit area. The correlation between the mass of the components of the biomass per tree and the independent variables was significant and higher to 0.52. The lower correlation was observed between these and the mass of canopy. The regression models selected to estimate the mass of biomass from the independent variables had R²adju higher than 83%, low standard deviations and low coefficients of variation.
publishDate 2019
dc.date.none.fl_str_mv 2019-09-30
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/15187
10.5902/1980509815187
url https://periodicos.ufsm.br/cienciaflorestal/article/view/15187
identifier_str_mv 10.5902/1980509815187
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.ufsm.br/cienciaflorestal/article/view/15187/pdf
dc.rights.driver.fl_str_mv Copyright (c) 2019 Ciência Florestal
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2019 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. 29 No. 3 (2019); 1459-1468
Ciência Florestal; v. 29 n. 3 (2019); 1459-1468
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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