Browsing Doctoral Degrees (Forest and Wood Science) by Title
Now showing items 1-20 of 37
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Biological control potential of the spotted stem borer Chilo partellus (Swinhoe) (Lepidoptera: Crambidae) with the entomopathogenic fungi Beauveria bassiana and Metarhizium anisopliae
(Stellenbosch : University of Stellenbosch, 2011-08-11)ENGLISH ABSTRACT: Biological control studies were conducted with isolates of entomopathogenic fungi Beauveria bassiana and Metarrhizium anisopliae from Ethiopia and South Africa against the spotted stem borer Chilo ... -
Development of a method to forecast future systems in the forest engineering value chain
(Stellenbosch : Stellenbosch University, 2001-12)ENGLISH ABSTRACT: The objective of this study is to develop a new method which can be used to forecast the Forest Engineering value chain. The method is then applied in the South African context in order to validate the ... -
Ecology of the bushpig Potamochoerus porcus Linn. 1758 in the Cape Province, South Africa
(Stellenbosch : Stellenbosch University, 1990-12)ENGLISH ABSTRACT:Bushpig sociology, energetics, reproduction and population dynamics were studied over an 8-year period in the Cape Province, South Africa. The social organization was found to be strikingly different ... -
The effect of fire damage on the growth and survival mechanisms of selected native and commercial trees in South Africa
(Stellenbosch : Stellenbosch University, 2015-04)ENGLISH ABSTRACT: Surface fires are known to affect trees of different species differently, depending on the capacity of the bark to shield the cambium from heat. Tree bark characteristics differ among species and thus ... -
Effect of population size on viable seed output, seed rand and natural regeneration pattern of a tropical conifer Widdringtonia whytei-Rendle in Malawi
(Stellenbosch : Stellenbosch University, 2013-12)ENGLISH ABSTRACT: Widdringtonia whytei is a tropical endemic, fire-adapted pioneer coniferous tree species within natural fire-fragmented Afromontane forest patches in a confined area on Mulanje Mountain in Malawi. Natural ... -
Effects of clear felling and residue management on nutrient pools, productivity and sustainability in a clonal eucalypt stand in South Africa
(Stellenbosch : Stellenbosch University, 2012-12)The subtropical ecosystem of the Zululand coastal plain is prized by the South African commercial plantation forestry industry for its rapid clonal Eucalyptus growth, short rotations (6 to 7 years) and high yields. This ... -
The effects of forestry policy on the sustainability of forest resources in Southern Africa
(Stellenbosch : Stellenbosch University, 2002-03)ENGLISH ABSTRACT: This study aims to evaluate the effects of forestry policy on the sustainability of forest resources in Southern Africa. However, the study has confirmed that forestry policy does not operate independently ... -
’n Ekonomiese ondersoek na die produksie van timmerhout uit uitheemse naaldhoutplantasies in die unie van Suid-Afrika
(Stellenbosch : University of Stellenbosch, 1954-06)No abstract -
Estimation of tree biomass, measurement uncertainties, and morphological topology of Androstachys Johnsonii prain
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: This research was aimed at estimating biomass stocks separated in above- and belowground tree components, and studying the topology of the shoot and root systems of Androstachys johnsonnii Prain in woodlands ... -
Fertilisation of semi-mature Pinus elliottii and Pinus elliottii x caribaea stands on a climatic gradient in the Tsitsikamma and its effect on system nutrition and stand productivity
(Stellenbosch : Stellenbosch University, 2018-12)ENGLISH ABSTRACT: Eight field trials were established in October 2015 to test the effect of different nitrogen and phosphorous combinations on Pinus elliottii and P. elliottii x caribaea growth. Fertiliser is costly, and ... -
A fibre optimisation index developed from a material investigation of Eucalyptus grandis for the Kraft pulping process.
(Stellenbosch : Stellenbosch University, 2012-03)ENGLISH ABSTRACT: A primary reason for the existence of the forest industry is to provide a renewable and natural resource for much needed timber and fibre products. Substantial improvements in management practices are ... -
Growth and physiological parameters related to shoot dieback in Pterocarpus angolensis DC seedlings
(Stellenbosch : Stellenbosch University, 2004-04)ENGLISH ABSTRACT:Six experiments, five in the glasshouse and one in the field near Nelspruit, were carried out to ascertain the effect of factors related to shoot die-back, and of water treatments on the growth and ... -
The impact of subsistence use of forest products and the dynamics of harvested woody species populations in a protected forest reserve in Western Zimbabwe
(2007-03)Developing sustainable mechanisms for use-management of forest products by user communities has been suggested as a possible solution to the often-observed conflict between forest use and the conservation of protected ... -
Investigating pollination success between Pinus radiata and selected pine species
(Stellenbosch : Stellenbosch University, 2018-03)ENGLISH ABSTRACT: Pinus radiata is not only an important commercial plantation species in the Southern Hemisphere, but it is highly susceptible to Fusarium circinatum. Interspecific hybridisation attempts between P. radiata ... -
An investigation into the environmental sustainability of buildings in South Africa with a focus on timber building systems
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: Buildings are responsible for about 33% of global anthropogenic carbon dioxide emissions, high-energy consumption and other environmental resource uses. Numerous studies over the past 20 years showed that ... -
Knowledge systems and adaptive collaborative management of natural resources in southern Cameroon : decision analysis of agrobiodiversity for forest-agriculture innovations
(Stellenbosch: University of Stellenbosch, 2009-12)ENGLISH ABSTRACT: This study aimed to analyze under which conditions the structure, organization and integration of knowledge systems can provide the implementation of adaptive collaborative management of natural resources ... -
Liquid water flow and discolouration of wood during kiln drying
(Stellenbosch: University of Stellenbosch, 2006-03)The discolouration of South African softwood during kiln drying can reduce the value of furniture grade lumber. Thermal discolouration of wood, as found due to heat treatment, produces a homogeneously browner colour in ... -
Local capacity to manage forestry resources under a decentralised system of governance : the case of Uganda
(Stellenbosch: University of Stellenbosch, 2006-03)This study aims at examining technical and institutional capacity in local organisations to manage decentralised forest resources in Uganda. Specifically the study assessed the roles, responsibilities, powers and legal ... -
Moisture content and drying defects in kiln-dried Eucalyptus grandis poles
(Stellenbosch : Stellenbosch University, 2007-12)ENGLISH ABSTRACT: There has been a reported reduction in the durability of creosote treated, wooden utility poles in South Africa in recent years. Several factors could have been responsible for this. In this study, Eucalyptus ... -
Phosphate bonded wood and fibre composites
(Stellenbosch : Stellenbosch University, 2017-03)ENGLISH ABSTRACT: In a world constantly driven by change, developing new composite products requires moving beyond the traditional approach to more environmentally benign processes and products. This study investigates the ...
