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| Martins, Ana Paula Marques; Francesci, Fernando; Gallo, Joseane Cristina; Vuaden, Elisabete; Padoin Weber, Veridiana; Carvalho, Douglas Edson. |
| This study aims to model the hypsometric relation to Pinus elliottii Engelm in the city of Dois Vizinhos, Paraná State, Brazil, and to investigate the difference of the relationship between the different sociological positions. For this study was conducted a census on a plot of 0.25 ha located on the Campus of the Federal Technological University of Paraná, being measured diameter at breast height (dbh), total height (h) and sociological position of three strata: PS1 - dominant trees; PS2 - codominant trees; and PS3 - controlled or suppressed trees. Seven models of hypsometric relation determined by STEPWISE procedure were adjusted. The parameters used for selection of the models were the adjusted coefficient of determination (R2aj.), coefficient of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Competição; Modelos hipsométricos; Povoamentos florestais. |
| Ano: 2016 |
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/11254 |
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| atanazio, Kemely alves; Krefta, Sandra Mara; Vuaden, Elisabete; Klein, Danieli Regina; Oliveira, Gustavo Silva; Silva, Maycon Thuan Saturnino da. |
| This study aimed to estimate the height of the diameter at breast height by adjusting mathematical equations in a Pinus taeda L. population in the municipality of Eneas Marques, PR. For this, we conducted a forest inventory through systematic sampling. In each plot was carried out to measure the circumference at breast height of all individuals , and the overall height of only 30 % of them , and other times estimated by the chosen equation. To adjust the hypsometric models was used PROC REG procedure , where ten mathematical models were tested . Of these models were selected that showed the best results of the adjusted determination coefficient, coefficient of variation , calculated F , standard error of the estimate and graphical analysis of waste. Best... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Espécie exótica; Inventário florestal; Mensuração florestal.. |
| Ano: 2017 |
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/15336 |
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