| Registro completo |
| Provedor de dados: |
PFB - Pesquisa Florestal Brasileira
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| País: |
Brazil
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| Título: |
Studies of Quantitative Relationships Among Dendrometric Variables and Carbon Contents for Native Mimosa scabrella Stands in the Curitiba Metropolitan Region
Relações Quantitativas entre Variáveis Dendrométricas e Teores de Carbono para Mimosa scabrella Bentham da Região Metropolitana de Curitiba
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| Autores: |
Machado, Sebastião do Amaral
Urbano, Edilson
Jarschel, Barbara
Teo, Saulo Jorge
Figura, Marco Aurélio
Silva, Luis César Rodrigues da
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| Data: |
2011-03-08
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| Ano: |
2011
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| Palavras-chave: |
Green weight
Dry weight
Carbon content
Mimosa scabrella Peso verde
Peso seco
Teor de carbono
Bracatingais
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| Resumo: |
This research aimed to determine dry weights and carbon contents by age, and by compartment of Mimosa scabrella trees, their correlations with other measured tree variables. The data for this research work came from 190 trees located in several counties of the Curitiba metropolitan region. Total height, crow height, stem height, DBH and crow diameter were measured of each one of the 190 trees. Every sample tree was felled down and sectioned in the following components: stem, thick branches (diameter ≥ 4 cm), thin branches (diameter < 4 cm), foliage, and dead branches. The green weigth of each tree component was weighted in the field. Small sub samples of each tree component were also weighted in the field and brought to the laboratory for oven dry. Thus it was obtained the dry weight of the whole component by extrapolation. Small portions of each component from 55 trees were triturated for carbon content determination. The stem dry weight participated with 69.85% of the whole tree, as an average, and presented a coefficient of variation of 17.88%. Theproduct DBH2*Total height and the DBH were the variables which presented the highest coefficient of correlation with the stem weight, as well as with the other tree components. There was no significative differences of carbon content among ages, either diameter classes for all analized components.
Esta pesquisa objetivou determinar o teor de matéria seca e teores de carbono por idade e classe de diâmetro, para o fuste e outros componentes de árvores de Mimosa scabrella Bentham (bracatinga), bem como suas correlações com as variáveis medidas em campo. Os dados para o desenvolvimento desta pesquisa compõem- e de 190 árvores coletadas em bracatingais de diversos municípios da região metropolitana de Curitiba, cobrindo idades de 5 a 17 anos. Nestas idades foram medidas as seguintes variáveis: altura total, altura de copa, altura do fuste, diâmetro à altura do peito e o diâmetro da copa. As árvores foram derrubadas e divididas nos seguintes componentes: fuste, galhos (diâmetros ≥ 4 cm e diâmetros
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Português
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| Identificador: |
http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/213
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| Editor: |
Embrapa Florestas
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| Relação: |
http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/213/164
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| Formato: |
application/pdf
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| Fonte: |
Brazilian Journal of Forestry Research; n. 52 (2006): jan./jun. Boletim de pesquisa Florestal; 37
Pesquisa Florestal Brasileira; n. 52 (2006): jan./jun. Boletim de pesquisa Florestal; 37
1983-2605
1809-3647
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| Direitos: |
Direitos autorais 2015 Pesquisa Florestal Brasileira
http://creativecommons.org/licenses/by-nc-nd/4.0
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