CONSTRUCTION OF SITE CURVES FOR NATIVE Mimosa scabrella STANDS IN THE METROPOLITAN REGION OF CURITIBA

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Sebastião do Amaral Machado Ronan Felipe de Souza Eldemar Jaskiu Ricardo Cavalheiro

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 (Raj 2), standard error of estimate in percentage (Syx%) and graphic analysis of residuals. Models were tested and the Chapman-Richards model was selected for construction of limit curves of site classes due to the biological significance of its coefficients, statistical performance and good distribution of residuals. Curve anamorphism and model validity were verified using the test proposed by Kirby (1975). Curve stability was demonstrated based on stem analysis data composing part of the database. Site classification for bracatinga stands was thus considered suitable and can potentially be applied to development of growth and yield equations for this particular species.

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How to Cite
MACHADO, Sebastião do Amaral et al. CONSTRUCTION OF SITE CURVES FOR NATIVE Mimosa scabrella STANDS IN THE METROPOLITAN REGION OF CURITIBA. CERNE, [S.l.], v. 17, n. 4, p. 489-498, may 2015. ISSN 2317-6342. Available at: <http://cerne.ufla.br/site/index.php/CERNE/article/view/72>. Date accessed: 23 sep. 2019.
Keywords
Bracatinga, site classification, model testing, curve stability
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Article