Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 1155.
  1. Library Resource
    janvier, 2012
    Afrique du Sud

    Ecosystems are a form of natural capital. Invasions by introduced alien plant species alter ecosystems, often reducing supplies of valuable ecosystem goods and services and imposing substantial costs on South Africa’s economy. Reversing these losses by removing alien plants imposes further costs because clearing and control operations are expensive. However, the high costs can be offset by the benefits of creating employment opportunities through such operations and the livelihood benefits that can be derived from the cleared land.

  2. Library Resource
    janvier, 2012
    Afrique du Sud

    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
    janvier, 2007
    Angola, Nigéria, Afrique du Sud, Botswana, République démocratique du Congo, Congo, Sierra Leone, Tchad, Ghana, Afrique sub-saharienne

    This report identifies the challenges that African legislators face in overseeing their countries’ oil and mining industries, as well as best practices in use around the world and recommendations for future engagement. The report finds that international organisations, local advocacy groups, and multinational corporations have played a key role in increasing public access to information and awareness in government oversight. Also, a growing number of African legislatures are more active in the management and oversight of the extractive sector.

  4. Library Resource
    janvier, 2013
    Mexique, Amérique latine et Caraïbes

    In Mesoamerica, coffee is an important part of agricultural GDP and export revenues which supports about half a million farmers, and employs millions of people on the farms and all along the supply chain. This policy brief summarises the potential risks and impacts of climate change on coffee farming in the region. Traditional coffee agroforests provide important ecosystem services and conserve significant carbon stocks.

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