Articles by Author: Paxie Wc Chirwa

Search results for Paxie Wc Chirwa

We found 24 results for you
  1. <em>Pinus patula</em> and pine hybrid hedge productivity in South Africa: a comparison between two vegetative propagation systems exposed to natural infection by <em>Fusarium circinatum</em>

    <em>Pinus patula</em> and pine hybrid hedge productivity in South Africa: a comparison between two vegetative propagation systems exposed to natural infection by <em>Fusarium circinatum</em>

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    In response to the Fusarium circinatum pine pathogen threat in southern Africa, research has been conducted on the development of F. circinatum-tolerant P. patula and P. patula hybrids. The objective of this study was to investigate the propagation potential of...
  2. Productivity and cost analysis of semi-mechanised and mechanised systems on the Viphya forest plantations in Malawi

    Productivity and cost analysis of semi-mechanised and mechanised systems on the Viphya forest plantations in Malawi

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    At least 200 000 m3 of timber is harvested annually using semi-mechanised harvesting systems on the Viphya forest plantations in Malawi. Although these systems have long been used on the Viphya, no investigation on their productivity has so far been...
  3. Operator work-related musculoskeletal disorders during forwarding operations in South Africa: an ergonomic assessment

    Operator work-related musculoskeletal disorders during forwarding operations in South Africa: an ergonomic assessment

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    Forest machine operators are still experiencing work-related musculoskeletal disorders (WMSDs) despite extensive mechanisation and modernisation of harvesting systems. However, paucity of local ergonomics research and technology transfer problems may affect the use of mechanised systems in South Africa. Consequently, this...
  4. Estimates of genetic parameters and genetic gains for growth traits of two <em>Eucalyptus urophylla</em> populations in Zululand, South Africa

    Estimates of genetic parameters and genetic gains for growth traits of two <em>Eucalyptus urophylla</em> populations in Zululand, South Africa

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    In South Africa, Eucalyptus urophylla is an important species due to its disease tolerance to fungal diseases such as Crysoporthe austroafricana and the Coniothyrium sp. cankers. It is mainly planted as a parental species in a hybrid combination with E...
  5. Overview of restoration and management practices in the degraded landscapes of the Sahelian and dryland forests and woodlands of East and southern Africa<xref ref-type="fn" rid="F0000"/>

    Overview of restoration and management practices in the degraded landscapes of the Sahelian and dryland forests and woodlands of East and southern Africa<xref ref-type="fn" rid="F0000"/>

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    The highest deforestation and forest degradation rates in Africa occur in the dry forests and woodlands where pressure for land is increasing, poverty is rampant, livelihood options are few and climate change effects are severe. This paper examines factors that...
  6. Socio-economic factors influencing household dependence on forests and its implication for forest-based climate change interventions<xref ref-type="fn" rid="FN0001"/>

    Socio-economic factors influencing household dependence on forests and its implication for forest-based climate change interventions<xref ref-type="fn" rid="FN0001"/>

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    In most African countries, forest-based climate change intervention initiatives such as nationally appropriate mitigation actions (NAMAs) and national adaptation programmes of action (NAPAs) are widely accepted. This is mainly due to the fact that they are relevant in addressing multiple...
  7. A review of carbon dynamics and assessment methods in the miombo woodlands

    A review of carbon dynamics and assessment methods in the miombo woodlands

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    Provision of accurate carbon (C) measurements and analysis are critical components in quantification of C stocks. The objectives of this review were to (1) compile and synthesise current knowledge of available methods for C stock estimation, (2) examine socio-economic drivers...
  8. Forests, people and environment: some African perspectives<xref ref-type="fn" rid="FN0001"/>

    Forests, people and environment: some African perspectives<xref ref-type="fn" rid="FN0001"/>

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    Forests in Africa support the livelihoods of millions of people through provision of timber and non-timber forest products, food and nutrition, energy and payment of environmental services. However, mismanagement of forests has resulted in deforestation and forest degradation, thereby contributing...
  9. Growth and dynamic modulus of elasticity of <em>Pinus patula</em> × <em>Pinus tecunumanii</em> hybrids in Mpumalanga, South Africa

    Growth and dynamic modulus of elasticity of <em>Pinus patula</em> × <em>Pinus tecunumanii</em> hybrids in Mpumalanga, South Africa

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    Field establishment of South Africa’s most important commercial pine species, Pinus patula, is severely hampered by the pitch canker fungus, Fusarium circinatum. Importantly, hybrids between P. patula and other pine species tolerant to the pitch canker fungus, such as P...
  10. Genetic parameters and genotype by environment interaction of <em>Eucalyptus grandis</em> populations used in intraspecific hybrid production in South Africa

    Genetic parameters and genotype by environment interaction of <em>Eucalyptus grandis</em> populations used in intraspecific hybrid production in South Africa

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    In South Africa, Eucalyptus grandis is an important species due to its fast growth and general suitability of its timber for a range of products. However, E. grandis is susceptible to fungal diseases such as Crysoporthe austroafricana and Coniothyrium sp...