Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 2.
  1. Library Resource
    Documents et rapports de conférence
    décembre, 2015
    Afrique orientale, Éthiopie

    Soil erosion and deposition values were estimated using pixel based landscape information and the Unit Stream Power Erosion Deposition (USPED) model, which works with the Universal Soil Loss Equation (USLE) parameters. The USPED model was adapted to Ethiopian conditions based on evidence from the Soil Conservation Research Programme, and calibrated and validated using data from former research stations as well as the Abbay (Blue Nile) Basin. Additionally, some of the USLE parameters were reduced in order to achieve a satisfactory approximation of sediment loss for the Abbay Basin.

  2. Library Resource
    Documents et rapports de conférence
    décembre, 2015
    Afrique septentrionale, Égypte, Maroc, Soudan, Tunisie, Afrique orientale, Burundi, Djibouti, Érythrée, Éthiopie, Kenya, Madagascar, Malawi, Mozambique, Rwanda, Soudan du Sud, République-Unie de Tanzanie, Zambie, Zimbabwe, Afrique centrale, Angola, Cameroun, République centrafricaine, Tchad, Congo, République démocratique du Congo, Gabon, Afrique australe, Botswana, Lesotho, Namibie, Afrique du Sud, Eswatini, Afrique occidentale, Bénin, Burkina Faso, Ghana, Guinée, Côte d'Ivoire, Libéria, Mali, Mauritanie, Niger, Nigéria, Sénégal, Sierra Leone, Togo

    Land degradation and desertification are among the biggest environmental challenges of our time. In the last 40 years, we lost nearly a third of the world’s arable farmland due to erosion, just as the number of people to be fed from it almost doubled. That’s why the UN General Assembly declared 2015 as the International Year of Soils. And the good news is that this new report shows that while Africa remains the most severely a«ected region, the benefit of taking action across the continent outweighs the cost of implementing it: not just by a little, but by a factor of seven.

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