2011
DOI: 10.1590/s0104-77602011000400007
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Construction of site curves for native Mimosa scabrella stands in the metropolitan region of Curitiba

Abstract: This study aims to construct definitive sites curves for native bracatinga stands (Mimosa scabrella Benth) in the metropolitan region of Curitiba. Data used was extracted from 648 pairs of values of dominant height and age. Ten mathematical models were tested for guide curve fitting. Selection of the best performing model was based on adjusted coefficient of determination (R aj 2 ), standard error of estimate in percentage (S yx %) and graphic analysis of residuals. Models were tested and the Chapman-Richards … Show more

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Cited by 11 publications
(10 citation statements)
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References 6 publications
(11 reference statements)
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“…While this approach has been applied before (e.g. SCOLFORO, 1992;SELLE et al, 1994;MACHADO et al, 2011) it has been used to determine if the selected model produced an adequate classification using qualitative criteria. Here we propose a quantitative test to enable the comparison of the stability of the site classification generated by different models.…”
Section: Resultsmentioning
confidence: 99%
“…While this approach has been applied before (e.g. SCOLFORO, 1992;SELLE et al, 1994;MACHADO et al, 2011) it has been used to determine if the selected model produced an adequate classification using qualitative criteria. Here we propose a quantitative test to enable the comparison of the stability of the site classification generated by different models.…”
Section: Resultsmentioning
confidence: 99%
“…Os volumes foram calculados através da fórmula de Smalian, associada à fórmula do cone para a secção da ponta. A fim de montar a matriz final dos dados processados, fez-se a classificação das árvores por classe de sítio de acordo com Machado et al (2011) para, então, calcular a média de cada variável por idade dentro de cada uma das classes de sítio.…”
Section: Processamento Dos Dadosunclassified
“…Nesse sentido, esforços vêm sendo realizados nos últimos anos em prol do desenvolvimento nas técnicas de manejo da espécie na Região Metropolitana de Curitiba (RMC) e, com a publicação de uma classificação de sítios definitiva para a região em 2011 (MACHADO et al, 2011), tendo em vista que o conhecimento do comportamento das variáveis dendrométricas por sítio se faz necessário, buscando subsidiar o aprimoramento das técnicas de manejo já empregadas para essa espécie.…”
Section: Introductionunclassified
“…There are several methods of purifying the crude lecithin, but the most common are: Purification of crude lecithin by extraction and column chromatography to obtain the phosphatidylcholine (Mertins et al, 2008;Machado et al, 2013).…”
Section: Purification Of Rice and Soy Lecithinmentioning
confidence: 99%