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Quality assessment of some timber trees extracted from the afram arm of the Volta lake in Ghana: sawing characteristics | Abstract
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Annals of Biological Research

Abstract

Quality assessment of some timber trees extracted from the afram arm of the Volta lake in Ghana: sawing characteristics

Author(s): Francis Wilson Owusu*, Joseph K. Appiah, Charles Essien, Bridgette Brentuo and Ernest G. Foli

Some logs of different wood species harvested from the Volta Lake were assessed for their sawing characteristics. These species included Manilkara multinervis (Berekankum), Erythrophyleum guinense (Potrodom), Diospyros mespiliformis (Savanna Ebony) and Cylicodiscus gabunensis (Denya/Okan). The physical characteristics of the logs before milling were assessed and the average diameter of each of the four species were estimated as 45cm, 44cm, 57cm and 56cm for Manilkara multinervis, Erythrophyleum guinense, Diospyros mespiliformis and Cylicodiscus gabunensis in that order. The estimated total volume of the logs was 6.32m3. The logs were processed into lumber with a ‘Forestor’ swivel saw machine using through-and-through sawing method. The observations made during and after the processing of the logs, lumber yields, production and fuel consumption rates are presented. Cylicodiscus gabunensis was the most easily sawn wood while Diospyros mespiliformis and Erythrophyleum guinense exhibited some difficulty during milling into lumber. All the species were hard and heavy, and this generally resulted in slight to moderate blunting effect on the saws used. Generally most of the lumber pieces generated were rated as Grade 1. The results indicate that milling of the timber logs harvested from the Volta Lake into lumber is feasible