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Ciência Florestal
Article . 1998 . Peer-reviewed
Data sources: Crossref
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Ciência Florestal
Article
License: CC BY NC
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Ciência Florestal
Article . 1998
Data sources: DOAJ
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Ciência Florestal
Article . 2009
Data sources: DOAJ
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Eficiência na estimativa do peso seco para árvores individuais e definição do ponto ótimo de amostragem para determinação da densidade básica de <i>Eucalyptus camaldulensis</i>.

Authors: Franco, Edmilson Jorge; Scolforo, José Roberto Soares; Mello, José Márcio de; Lima, José Tarcísio de;

Eficiência na estimativa do peso seco para árvores individuais e definição do ponto ótimo de amostragem para determinação da densidade básica de <i>Eucalyptus camaldulensis</i>.

Abstract

Os objetivos deste estudo foram testar a eficiência dos modelos de dupla entrada, de simples entrada, de dupla entrada associados a relação hipsométrica e o método dos dois diâmetros; e também definir o ponto ótimo de amostragem na árvore para obter a densidade básica da madeira, a partir de uma amostra. O estudo foi conduzido na região de João Pinheiro, MG, em propriedade da Mannesman Florestal Ltda. Foram utilizadas 127 árvores cubadas rigorosamente com idades variando de 28 a 76 meses. Foram também retirados discos de metro em metro ao longo do fuste, para a determinação da densidade básica. As estimativas do peso seco total com e sem casca foram obtidas para as quatro metodologias em estudo. A comparação destas com os valores reais se deu através de um delineamento em blocos ao acaso. Foi constatado que qualquer dos procedimentos testados propiciam estimativas do peso seco semelhantes aos valores reais. No entanto, as medidas de precisão da equação de simples entrada são inferiores aos demais métodos testados. O ponto ótimo de amostragem na árvore para obter a densidade básica foi a 1m de altura. Maior precisão pode ser conquistada se a amostra for tomada a 1; 3 e 6 metros de altura.

Country
Brazil
Keywords

S, densidade básica, Agriculture, Forestry, Dry weight, SD1-669.5, peso seco, methods of estimation, basic density, Peso seco, métodos de estimativa

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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gold