Author:Andrew, Jerome E; Masetlwa, J; Tesfaye, T; Sithole, Bishop BDate:Dec 2020Bark from trees obtained from sustainably managed plantations used in the production of timber, pulp and paper is an under-utilised waste in many countries across the world. However, in the context of an integrated biorefinery, they may serve ...Read more
Author:Chunilall, Viren; Wesley-Smith, J; Bush, TDate:Nov 2006Dissolving pulp is the end-product of acid-bisulphite pulping and bleaching processes, during which almost all non-cellulosic wood components are removed to produce dissolving pulp with final a cellulose purity of up to 96%. Dissolving pulp ...Read more
Author:Chunilall, Viren; Wesley-Smith, J; Bush, TDate:Nov 2006The work presented will report on the use of AFM to study the CFA characteristics of dissolving pulp of a clone of Eucalyptus grown in compartments with contrasting growth rates (low and high), at different stages of the pulping process (solid ...Read more
Author:Thoresen, M; Malgas, S; Gandla, ML; Jonsson, LJ; Sithole, Bishop B; Pletschke, BIDate:Aug 2021Lignocellulosic biomass is an important renewable resource to produce biofuels, due to its abundance and high polysaccharide content. Bioconversion is generally achieved in two stages: (i) pre-treatment, to reduce biomass recalcitrance, and ...Read more
Author:Ramnath, L; Sithole, Bishop B; Govinden, RDate:Feb 2018Lipophilic extractives naturally occurring in wood tend to coalesce during pulping to form pitch deposits, which have particularly undesirable effects on the pulping process and quality of pulp produced. A chemical characterization of different ...Read more
Author:Van Wilgen, BWDate:2007Gums trees (in the genus Eucalyptus, from Australia) are not set to ‘disappear’ (even if some people wanted them to). Gums form an important component of the forest industry and, at last count, they covered over 540 000 ha in formal plantations ...Read more
Author:Scott, DF; Prinsloo, FWDate:Oct 2008The longer-term effects of afforestation with Pinus radiata and Eucalyptus grandis on streamflows were analyzed using data from two paired-catchment experiments in South Africa. The experiments are rare in that they have been maintained over ...Read more
Author:Geldenhuys, CJDate:Dec 1997Commercial plantations in South Africa have been established mainly in grasslands adjacent to native forest which occur as small, scattered patches, restricted to valleys and scarps by regular fire-prone grasslands. Under storey vegetation ...Read more
Author:Lesch, W; Scott, DFDate:15 Dec 1997The paired catchment method was used to test for the effects of thinning on the water yield in three afforested catchments in South Africa, namely, Biesievlei, Jonkershoek, 98% afforested with Pinus radiata (three thinnings); Westfalia catchment ...Read more
Author:Naidoo, Sasha; Ahmed, F; Pammenter, N; Zbonak, ADate:Jun 2010A technique was developed to identify annual growth rings in E. grandis using a combination of annual measurements of diameter at breast height (DBH) from permanent sample plot (PSP) datasets and bark-pith density profiles. By assessing the ...Read more
Author:Dye, PJ; Jacobs, SDate:17 May 2004The South African forestry industry perceives Process-based forestry models as important tools for improving predictions of growth and water use in forest plantations. The 3-PG process-based forest model was evaluated in South Africa using ...Read more