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Showing items 1 through 9 of 69.
  1. Library Resource
    Journal Articles & Books
    March, 2011
    Africa, South Africa

    In January 2011 the South African Institute of International Affairs (SAIIA) launched an online knowledge resource offering researchers and opinion leaders easy access to research and information on Africa. The Africa Portal will establish a forum to share important insights on Africa with policymakers and the general public, explained SAIIA.

  2. Library Resource
    January, 2012
    South Africa

    Surplus woody plants in areas where there is bush thickening present an opportunity to harvest the wood as bio-fuel. The health of the ecosystem and rangeland restoration must, however, always be prioritised during any tree harvesting for bio-fuel. In South Africa, indigenous woody plants are a prominent feature of the savannah, the largest of the vegetation biomes in South Africa and the Southern African sub-continent.

  3. Library Resource
    Journal Articles & Books
    December, 2011
    France, South Africa, Denmark, Italy, Australia, Ireland, United Kingdom, New Zealand, Europe, Asia, Northern America, Africa, South America, Southern Africa

    We used the process-oriented niche model CLIMEX to estimate the potential global distribution of serrated tussock under projected future climates. Serrated tussock is a drought-tolerant, wind- and human-dispersed grass of South American origin that has invaded pastures in Australia, Europe, New Zealand, and South Africa. The likely effect of climate change on its potential global distribution was assessed by applying six climate-change scenarios to a previously developed model.

  4. Library Resource
    Journal Articles & Books
    December, 2011
    Botswana, Kenya, South Africa, Africa, Southern Africa

    This article assesses the current technical and economic potential of three bioenergy production systems (cassava ethanol, jatropha oil and fuelwood) in semi-arid and arid regions of eight sub-Saharan African countries. The results indicate that the availability of land for energy production ranges from 2% (1.3 Mha) of the total semi-arid and arid area in South Africa to 21% (12 Mha) in Botswana. Land availability for bioenergy production is restricted mainly by agricultural land use, but also by steep slopes and biodiversity protection.

  5. Library Resource
    Policy Papers & Briefs
    December, 2011
    Rwanda, Morocco, Kenya, Libya, Somalia, Uganda, Ethiopia, Burundi, Zimbabwe, Tanzania, South Africa, Congo, Djibouti, Malawi, Sudan, Africa

    In cooperation with the Government of Ethiopia, the Subregional Office of Eastern Africa (SFE) of the Food and Agriculture Organization of the United Nations (FAO) introduced a parasitic wasp to control a fast-spreading aphid pest infestation threatening to destroy cypress tree plantations in parts of the Amhara and Tigray Regional States in the north of Ethiopia.

  6. Library Resource
    Journal Articles & Books
    January, 2011
    South Africa

    L’université de Stellenbosch, en Afrique du Sud, a annoncé que ses chercheurs avaient mis au point un nouveau système de fi ltrage de l’eau. Elle faisait allusion à un fi ltre jetable de haute technologie qui ressemble à un sachet de thé et rend potable l’eau très polluée. Il s’agit d’un fi ltre à eau facile d’emploi
    et respectueux de l’environnement qui s’installe dans le goulot d’une bouteille. Selon l’université, cette invention doit permettre aux communautés vulnérables, par exemple celles qui vivent à proximité de cours d’eau pollués, d’accéder facilement à l’eau potable.

  7. Library Resource
    Journal Articles & Books
    December, 2011
    South Africa, Southern Africa

    1. The progression of approaches in systematic conservation planning from representation to representation and persistence has greatly enhanced its potential applicability to freshwaters. However, conceptual frameworks that consolidate principles for incorporating persistence into freshwater conservation planning are still lacking. 2.

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