Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 5.
  1. Library Resource
    Rapports et recherches
    décembre, 1997
    Cameroun

    Rainfall, water, sediment yields and evaporation were quantified in three catchment areas with undisturbed rain forest, selectively logged forest, and forest with shifting cultivation respectively. Despite a considerable regional variation in rainfall(1700-2300 mm/a), annual evaporation rates were similar (1209-1314 mm/a). The impact of land use practices on water yield is negligible compared to the effect of rainfall.

  2. Library Resource
    Rapports et recherches
    décembre, 2012
    Afrique sub-saharienne

    The demand for agricultural products (food, feed, fibre, and biomass for other purposes) produced in Sub-Saharan Africa (SSA) will increase for the coming decades. In addition, the global climate change will largely impact on the agricultural sector in Sub-Saharan Africa. Major challenges for the agricultural sector in SSA are that agricultural production systems depend on resources that are for a large part non-renewable, and that the current agricultural practices in SSA are major contributors to environmental degradation.

  3. Library Resource
    Rapports et recherches
    décembre, 2017
    Botswana

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