02146nab a2200313 i 4500 BR-BrBNA 20260428113433.0 260428b2019 bl.qr|pooa||| 00| 0 eng | BR-BrBNA eng K10 U10 Silva, Jeferson Pereira Martins Fernandes, Márcia Rodrigues de Moura Gonçalves, Anny Francielly Ataide Lopes, Isáira Leite e Silva, Gilson Fernandes da Cabacinha, Christian Dias Estimation of the Basic Wood Density of Native Species Using Mixed Linear Models Publicação on-line; 49 ref.; 7 tables; 2 illus.; Summary (En) ABSTRACT This paper aimed to estimate the basic density (DB) of the wood of Cerrado species using mixed linear models. For performing the DBH measurement, the sampling of 334 individuals was carried out. By keeping the Pilodyn apparatus in the DBH position, two measurements were made on opposite sides. Further, for determining DB, the trees were knocked down, followed by removal of five wood discs at different height of stem positions. For this purpose, two sets of modeling alternatives were proposed, which take into account with and without random effects, employing species as a random effect grouping variable. Thus, it was elucidated that, for the estimation of DB, the mixed model that considered the random effects performed better as compared to the alternative model without random effects. The inclusion of random effects leads to the estimation of DB with high accuracy. Keywords: Cerrado stricto sensu, wood quality, regression. CERRADO MADEIRA QUALIDADE REGRESSÃO LINEAR 2929 347954 Rio de Janeiro-RJ Instituto de Florestas - UFRRJ 1994 2025-0453 Floresta e Ambiente (Brazil) 1415-0980 / ISSN 2179-8087 0nline v. 26(special number n.1) p. 1-10; (2019) BR2026001306 https://www.scielo.br/j/floram/a/X54hzCKyFFxL9s7yDH34rMm/?format=pdf&lang=en ANA 341596 341596