Data/hora: 12/06/2024 12:27:36

Provedor de dados: 	190	
País: 	Brazil	
Título: 	Precision and relative efficiency of sampling methods in teak

Precisão e eficiência relativa de métodos de amostragem em teca	
Autores: 	Miranda, Dirceu Lucio Carneiro; Francio, Jonas; Santos, Juliano de Paula; Sanquetta, Carlos Roberto; Corte, Ana Paula Dalla.	
Data: 	2015-09-30	
Ano: 	2015	
Palavras-chave: 	Forest inventory; Forest plantations; Tectona grandis Recursos Florestais; Engenharia Florestal; Inventário Florestal Inventário floresta; L Plantios florestais; Tectona grandis.	
Resumo: 	This study aimed to compare three sampling methods: fixed area, Bitterlich, and Prodan, regarding accuracy and relative efficiency to estimate the variables: diameter at 1.30 m above soil level (DBH), number of trees, basal area, and volume. The limit of error established was 10% at probability level of 95%, using 30 plots for each method. Circumference at 1.30 m above soil level was measured, for conversion in DBH, with total time counted since the plots installation until the last tree measured. The most accurate sampling was the fixed area method, for estimation of DBH and number of trees per hectare, whereas the Bitterlich method was the most accurate for estimation of basal area and volume. Bitterlich method proved to be more efficient for estimation of all variables. It can be concluded that the accuracy is not directly associated with relative efficiency, and that less usual sampling.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Português	
Identificador: 	http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/638

10.4336/2015.pfb.35.83.638	
Editor: 	Embrapa Florestas	
Relação: 	http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/638/432	
Formato: 	application/pdf	
Fonte: 	Brazilian Journal of Forestry Research; v. 35, n. 83 (2015): jul./set.; 247-254

Pesquisa Florestal Brasileira; v. 35, n. 83 (2015): jul./set.; 247-254

1983-2605

1809-3647	
Fonte: 	Direitos autorais 2015 Pesquisa Florestal Brasileira

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