Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados AgEcon (1) Acta Amazonica (1) Autor HIRABUKI,Yoshihiko (1) LISBOA,Pedro Braga (1) McDowell, Allen (1) NISHIZAWA,Toshie (1) Pitblado, Jeffrey S. (1) SILVA,Carlos Rosário da (1) TSUCHIYA,Akio (1) Mais... Palavra-chave Strata (2) Amazonia (1) Cluster (1) Design (1) Image analysis (1) Power (1) Research Methods/ Statistical Methods (1) Secondary forest (1) Svy (1) Svymean (1) Svyset (1) Vessels (1) Mais... Tipo do documento Info:eu-repo/semantics/article (1) Journal Article (1) Ano 2002 (2) País Brazil (1) United States (1) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última From the help desk: It's all about the sampling AgEcon McDowell, Allen; Pitblado, Jeffrey S.. Effective estimation and inference, when the data are collected using complex survey designs, requires estimators that fully account for the sampling design. This article explores, by means of Monte Carlo simulations of the power of simple hypothesis tests, the consequences of parameter estimation and inference when naive estimators are employed with survey data. Tipo: Journal Article Palavras-chave: Cluster; Design; Power; Strata; Svy; Svymean; Svyset; Research Methods/ Statistical Methods. Ano: 2002 URL: http://purl.umn.edu/115961 The relationship between stem vessel parameters and the development of strata in the early stages of secondary forest succession in Amazonia Acta Amazonica TSUCHIYA,Akio; HIRABUKI,Yoshihiko; NISHIZAWA,Toshie; LISBOA,Pedro Braga; SILVA,Carlos Rosário da. In order to compare the development of strata in the early stages of secondary forest succession with vessel parameters of the tree species, a forest inventory was carried out in 4-year (Q1: 48 m2), 11-year (Q2: 400 m2) and 20-year (Q3: 400 m2) forests and vessel parameters were investigated from stem cross sections of 18 species obtained in Q2. Thirty three species (21 families), 77 species (35 families), 39 species (20 families) were found in Ql, Q2, Q3, respectively. The percentage of dead individuals, dead stems and the percentage of individuals with multiple stems increased with time after clear cutting. Also, the total D2H of Q3 was 26.1 times that of Q1, and the development of strata started in Q2 and Q3. The image analysis of vessel size, area and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazonia; Secondary forest; Strata; Image analysis; Vessels. Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672002000200241 Registros recuperados: 2 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco