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Heartwood and sapwood in eucalyptus trees: non-conventional approach to wood quality Anais da ABC (AABC)
CHERELLI,SABRINA G.; SARTORI,MARIA MÁRCIA P.; PRÓSPERO,ANDRÉ G.; BALLARIN,ADRIANO W..
ABSTRACT This study evaluated the quality of heartwood and sapwood from mature trees of three species of Eucalyptus, by means of the qualification of their proportion, determination of basic and apparent density using non-destructive attenuation of gamma radiation technique and calculation of the density uniformity index. Six trees of each species (Eucalyptus grandis - 18 years old, Eucalyptus tereticornis - 35 years old and Corymbia citriodora - 28 years old) were used in the experimental program. The heartwood and sapwood were delimited by macroscopic analysis and the calculation of areas and percentage of heartwood and sapwood were performed using digital image. The uniformity index was calculated following methodology which numerically quantifies the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Gamma radiation; Image analysis; Eucalyptus; Density uniformity index.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000100425
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A contribution to the identification of charcoal origin in Brazil II - Macroscopic characterization of Cerrado species Anais da ABC (AABC)
GONÇALVES,THAÍS A.P.; NISGOSKI,SILVANA; OLIVEIRA,JULIA S.; MARCATI,CARMEN R.; BALLARIN,ADRIANO W.; MUÑIZ,GRACIELA I.B..
The Brazilian Cerrado is the richest savanna in the world. It is also one of the biomes more threatened in the country and a hotspot for conservation priorities. The main causes of deforestation in Cerrado are agricultural practices, livestock and charcoal production. Although charcoal has a minor impact, its consumption represents the deforestation of 16.000 Km² of the Cerrado. To contribute for the biomes's conservation it is very important to improve forestry supervision. Thus, in this work we present the macroscopic characterization of charcoal from 25 Cerrado's species. We simulate the real conditions of forest controllers by using the magnifications of 10x, 25x and 65x. Likewise, the charcoals micrographs are all of transverse sections due to the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Charcoal anatomy; Nature conservancy; Forest control; Native species.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000301045
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