Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 9.
  1. 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.

  2. Library Resource
    Documents et rapports de conférence
    décembre, 2015
    Global

    As the world’s population continues to rise, there is
    an ever increasing demand for our land to produce
    a diverse range of products such as food, timber,
    and fuel. Our growing need for these goods is
    leading to higher levels of competition between
    different land uses and, as a result, land users. Not
    only is the quantity of land available for production
    under current technical and economic conditions
    limited, but there is also growing evidence that the
    quality of our land is degrading (Safriel, U. N. 2007;

  3. Library Resource
    Documents et rapports de conférence
    décembre, 2015
    Asie occidentale, Jordanie

    Jordanian rangelands are a source of valued livestock produce, carbon storage, biodiversity, and medicinal plants. They also serve as watersheds that receive rainfall, yield surface water, and replenish groundwater throughout the area east and south of the western Jordan highlands. Appropriate land management, which is currently lacking, can protect and maximize these services for society. With the acceleration of desertification, land degradation and drought during the twenty-first century in the arid and semi-arid regions of Jordan, these services are becoming jeopardized.

  4. Library Resource
    Documents et rapports de conférence
    décembre, 2015
    Afrique occidentale, Mali

    The Kelka forest in the Mopti region of Mali is important for the provision of ecosystem services like carbon sequestration and maintenance of the hydrological cycle. The Kelka forest area occupies more than 300, 000 hectares with 15
    villages within and around its boundaries. The forest resources and soil fertility of the forest are in continuous decline due to a combination of climatic and human induced factors. For example, the availability of firewood has halved

  5. 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.

  6. Library Resource
    Matériels institutionnels et promotionnels
    décembre, 2015
    Asie central, Kazakhstan, Kirghizistan, Tadjikistan, Turkménistan, Ouzbékistan

    In this issue: the meeting in Antalya laid the foundation for the implementation of the ELD Initiative in Central Asia. The ELD CA Initiative held a working meeting in Ashgabat. Communication issues have been identified. A working meeting of the group of Tajik specialists. ELD CA paths of cooperation are being determined. A 6-step approach to issues of the Economics of Land Degradation.

  7. Library Resource
    Documents et rapports de conférence
    juillet, 2016
    Global

    With around one third of the world’s arable land degraded, estimated annual losses of 6.3 to 10.6 USD trillion, and a projected need to increase food production from land by 70 per cent by 2050, we simply cannot afford to neglect the loss of potential production from careless land management. Whenever land is not producing at its potential,it is an under-performing asset that requires investments to ensure the future supply chains that many industries depend upon.

  8. Library Resource
    Matériels institutionnels et promotionnels
    août, 2015
    Kazakhstan, Kirghizistan, Tadjikistan, Turkménistan, Ouzbékistan, Asie central

    In this issue: ELD CA National teams defined and visited pilot research sites. ELD CA Initiative presented at the International Water Forum of Mountain Countries. ELD CA National teams defined ecosystem services and their valuation methods. ELD CA and UNDP BIOFIN project in Kazakhstan defined the cooperation during the
    meeting in Astana. Strengthened the cooperation between ELD CA and partners in the region. Description of research pilot sites in the ELD approach in Central Asian countries.

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