Título:	Approaches to forest site classification as an indicator of teak volume production
Autor(es):	Santos, Mario Lima dos Miguel, Eder Pereira Nappo, Mauro Eloi Souza, Hallefy Junio de Santos, Cassio Rafael Costa dos Silva, José Natalino Macedo Matricardi, Eraldo Aparecido Trondoli
ORCID:	https://orcid.org/0000-0003-1679-9796 https://orcid.org/0000-0001-6259-4594 https://orcid.org/0000-0001-9356-0186 https://orcid.org/0000-0002-5323-6100
Afiliação do autor:	University of Brasilia, Campus Universitário Darcy Ribeiro, Department of Forest Sciences University of Brasilia, Campus Universitário Darcy Ribeiro, Department of Forest Sciences University of Brasilia, Campus Universitário Darcy Ribeiro, Department of Forest Sciences University of Brasilia, Campus Universitário Darcy Ribeiro, Department of Forest Sciences Federal Rural University of Amazonia, Capitão Poço Campus Federal Rural University of Amazonia, Belém Campus, Department of Forest Sciences University of Brasilia, Campus Universitário Darcy Ribeiro, Department of Forest Sciences
Assunto:	Teca - cultivo Árvores - crescimento Árvores - Amazônia Levantamentos florestais
Data de publicação:	10-Ago-2023
Editora:	MDPI
Referência:	SANTOS, Mario Lima dos et al. Approaches to forest site classification as an indicator of teak volume production. Forests, [S.l.], v. 14, n. 8, 10 ago. 2023. DOI: https://doi.org/10.3390/f14081613. Disponível em: https://www.mdpi.com/1999-4907/14/8/1613. Acesso em: 27 março 2024.
Abstract:	We conducted a study on the dominant height growth of clonal teak (Tectona grandis Linn F.) plantations in the Brazilian Amazon to assess their potential and its agreement with volumetric production. We employed two approaches, ADA (algebraic difference) and GADA (generalized algebraic difference), and analyzed data from 58 permanent plots collected over a 10 year period. To classify the sites, we developed equations and evaluated their accuracy using various criteria, including correlation coefficient, mean square of residual, Akaike’s criterion, distribution of residuals, and validation through equivalence testing (TOST). We also assessed the biological realism of the constructed curves. We used cluster evaluation and dendrogram comparison to assess the agreement between site index and volumetric production for each approach. The Lundqvist–Korf baseline models (M1–ADA and M4–GADA) proved to be accurate and realistic in estimating dominant height in both approaches. Our findings indicate that the approaches utilizing dynamic equations and generating polymorphic curves effectively represent the sites and indicate the volumetric production of the plantations, with 98.3% of agreement rate. Based on our results, we recommend the use of ADA and GADA approaches for estimating the dominant height of clonal teak plantations in the Eastern Brazilian Amazon.
Unidade Acadêmica:	Faculdade de Tecnologia (FT) Departamento de Engenharia Florestal (FT EFL)
Programa de pós-graduação:	Programa de Pós-Graduação em Ciências Florestais
Licença:	© 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).
DOI:	https://doi.org/10.3390/f14081613
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