Consulta: creatorFacets:"Higuchi, Niro"
Registros recuperados: 3
Data/hora: 12/06/2024 07:37:05

Projection model by diameter class for native forests: focus on the Weibull probability function
Provedor de dados: 190
Autores: Mendes Nascimento, Rodrigo Geroni; Machado, Sebastião do Amaral; Figueiredo Filho, Afonso; Higuchi, Niro.
In 1979 the technique of modeling diameter distributions by probabilistic functions was first applied for Hyink &amp; Moser in forecasting growth and production of uneven aged and heterogeneous forests. However, today few studies use this method for planning the production in these forests for not knowing the operational feasibility of the technique. Therefore this paper presents a review of the characteristics that allow the modeling of growth and yield by diameter class, highlighting the importance of the dynamics of recruitment, mortality, survival, and population of attributes related to the modeling of Weibull distribution, with the specific statistics used in the modeling of yield by this method.doi: 10.4336/2012.pfb.32.70.93
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Implicit model of projection; Probability density functions; Mixed and uneven aged forests Engenharia Florestal Modelo implícito de projeção; Funções densidade de probabilidade; Florestas multiâneas e heterogêneas.
Ano: 2012
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/362

USING DIAMETER VARIATION INDEX OF PIONEER SPECIES  FOR CLASSIFICATION AND MODELING TROPICAL FOREST YIELD
Provedor de dados: 193
Autores: Nascimento, Rodrigo Geroni Mendes; Machado, Sebastião do Amaral; Figueiredo Filho, Afonso; Higuchi, Niro.
This study sought to classify the productivity of a representative area of tropical forest, as well as to analyze the relationship between the structural variability of pioneer species and the yield of three management regimes. The study area is located at the Tropical Forestry Experimental Station belonging to INPA (National Institute for Amazon Research), approximately 90 km from downtown Manaus, in the State of Amazonas, Brazil. Data were collected from twelve 1 ha sample plots. Diameter was measured annually for all individuals with DBH  10 cm between the years 1990 and 2008. Pioneer species served as the basis for calculating the Diameter Variability Index VI% over time. Three classes of variability were established according to the guide curve...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon Rainforest; Ecological groups; Yield models; Site classification; Growth analysis.
Ano: 2016
URL: http://revistas.ufpr.br/biofix/article/view/49102

A EXPOSIÇÃO DE TRABALHADORES FLORESTAIS AO CALOR DURANTE O FENÔMENO EL NIÑO GODZILLA NA AMAZÔNIA
Provedor de dados: 193
Autores: Nascimento, Kauê Augusto Oliveira; Higuchi, Niro; Emmert, Fabiano.
O conforto térmico laboral está entre 20 e 24°C, porém na Amazônia as médias diurnas superam os 28°C, ou seja, há desconforto térmico no trabalho. Para acentuar, a ocorrência de fenômenos extremos El Niño relacionados à mudança climática, vêm causando aumento das temperaturas na região e os efeitos recairão sobre a saúde e capacidade dos trabalhadores. O potencial desenvolvimento do manejo florestal e o bem-estar laboral vão de encontro a previsões de fenômenos extremos na Amazônia, o que justifica a realização deste trabalho. Este estudo teve como objetivo a coleta de variáveis ambientais durante o El Niño Godzilla (2015-2016) e comparação com outros períodos. O estudo foi conduzido no município de Itapiranga, Amazonas, Brasil, coordenadas latitude 02°...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Manejo florestal; Mudança climática; Saúde do trabalho.
Ano: 2018
URL: http://revistas.ufpr.br/biofix/article/view/57358