Data/hora: 12/06/2024 09:41:42

Provedor de dados: | 190
País: | Brazil

Título:

Sampling and stratification hypsometric relation data in forest inventories of savanna

Amostragem e agrupamento de dados de relação hipsométrica em inventários florestais de Cerrado Tocantinense

Autores: | Andrade, Valdir Carlos Lima de; Kroetz, Elaine Aparecida; Nicola, Andrei; Souza, Priscila Bezerra de; Nohama, Fabiano Kenji; Leite, Helio Garcia; Binoti, Daniel Henrique Breda; BinotiI, Mayra Luiza Marques da Silva.
Data: | 2015-09-30
Ano: | 2015
Palavras-chave: | Savanna tocantinense; Hypsometric models; Models identity Recursos Florestais; Engenharia Florestal; Biometria Florestal Cerrado tocantinense; Modelos hipsométricos; Identidade de modelos.
Resumo: | This study aimed at evaluating the application of linear hypsometric equations in savanna located in the state of Tocantins, Brazil. Data were obtained in 46 plots of 1,000 m² each, and 13 plots were used to simulate six different systems of data sampling to fit hypsometric models. The remaining 33 plots were reserved for an application test of generated hypsometric equations. In this assessment, to decide the sampling system and model, in addition to the residual graphic analysis, the following statistic criteria were adopted: residual standard error and multiple linear correlation. After this decision, a model identity test was applied to determine the best way to prepare the database aiming at the hypsometric models adjustment. We concluded that the linear functional relation: Ln(h)=f[Ln(N); Ln(dq/d); 1/d] fitted with data from the first 50 trees of each plot and, independently, from diameter class, was the most appropriate to characterize the hypsometric relation in savanna in Tocantins.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Português

Identificador:

http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/683

10.4336/2015.pfb.35.83.683

Editor: | Embrapa Florestas
Relação: | http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/683/430
Formato: | application/pdf

Fonte:

Brazilian Journal of Forestry Research; v. 35, n. 83 (2015): jul./set.; 227-238

Pesquisa Florestal Brasileira; v. 35, n. 83 (2015): jul./set.; 227-238

1983-2605

1809-3647

Fonte:

Direitos autorais 2015 Pesquisa Florestal Brasileira

http://creativecommons.org/licenses/by-nc-nd/4.0