Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 3
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Floristic evolution in an agroforestry system cultivation in Southern Brazil Anais da ABC (AABC)
SILVA,LUÍS C.R.; MACHADO,SEBASTIÃO A.; GALVÃO,FRANKLIN; FIGUEIREDO FILHO,AFONSO.
ABSTRACT Bracatinga (Mimosa scabrella Bentham) is an important pioneer tree species in Ombrophylous Mixed Forest of Brazil and is widely used as an energy source. In traditional agroforestry systems, regeneration is induced by fire, then pure and dense stands known as bracatinga stands (bracatingais) are formed. In the first year, annual crops are intercalated with the seedlings. At that time the seedlings are thinned, then the stands remain at a fallow period and cut at seven years old. The species is very important mainly for small landowners. We studied the understory species that occur naturally during the succession over several years in order to manage them rationally in the future and maintain the natural vegetation over time. Three to 20 year-old...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bracatinga stands; Diversity Index; Ecological succession; Evenness Index.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000300973
Imagem não selecionada

Imprime registro no formato completo
Diametric Growth of Tree Species in the Atlantic Forest, Paraná, Brazil Anais da ABC (AABC)
SOUZA,RONAN F.; MACHADO,SEBASTIÃO A.; LONGHI-SANTOS,TOMAZ.
Abstract: Management of remnants in Atlantic Forest is an alternative for their conservation, however, information on the growth and ecology of those species is lacking. This study aimed to describe diametric growth of Balfourodendron riedelianum, Cordia trichotoma and Ocotea diospyrifolia based on its growth rings and to verify the relationship between this growth with the environmental characteristics in different altitude levels and forest types. Diametric growth was higher for the largest tree diameters of the three species. Based on the fitted growth model, the age in which mean annual increment in diameter becomes greater than the current annual increment was 55 years for B. riedelianum (DBH = 18.27 cm), 45 years for C. trichotoma (DBH = 26.56 cm)...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dendrochronology; Altitude levels; Forest types; Forest management; Forest ecology; Iguaçu National Park.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000700855
Imagem não selecionada

Imprime registro no formato completo
Sampling system for estimating woody debris in an urban mixed tropical forest Anais da ABC (AABC)
PÉLLICO NETTO,SYLVIO; PELISSARI,ALLAN L.; BRIBEIRO,ANDRESSA; MACHADO,SEBASTIÃO A.; NASCIMENTO,RODRIGO G.M..
Abstract Woody debris, defined as standing and downed deadwood, consists in an essential component of the forest carbon stock. However, few studies have been carried out to get an efficient and accurate sampling procedure for estimating it. This work proposes two methodologies to estimate the woody debris volume in a Brazilian mixed tropical forest: 1) two-stage systematic sampling, using a mixed methodology, in which the Strand’s method is applied to standing dead trees and stumps, and line intercept sampling is used to fallen trees and branches; and 2) ratio estimate of the sum of cross-sectional areas of deadwood pieces and forest basal area, aiming to obtain the total woody debris volume indirectly in the natural forest. Conversions for biomass and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Line intercept sampling; Ratio estimate; Systematic sampling; Strand’s method.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703769
Registros recuperados: 3
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

Valid HTML 4.01 Transitional