Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 130.
  1. Library Resource
    Articles et Livres
    décembre, 2000
    Nigéria, Afrique, Afrique occidentale

    The importance of cassava relative to other crops in the cropping system was almost total; cassava was present in 70% of arable fields; maize and beans or peas were each present in 13% of arable fields and all other crops were present in 4%. Cassava was produced mostly for sale, yet it was not as important around market centers as in remote areas because imported rice and wheat products were easily accessible.

  2. Library Resource
    Documents et rapports de conférence
    décembre, 2000
    Cameroun, Afrique, Afrique centrale

    In sub-Saharan Africa, intensification of agriculture and rational use of arable land are essential for long-term growth (Gros, 1979, Johnston, 1990, Oluf et al., 990). Extensive cultivation methods and the population explosion are pushing the limits of cultivated land every day; deforestation accelerates; the productive capacity of the land is reduced

  3. Library Resource
    Articles et Livres
    décembre, 2000
    Sri Lanka, Asia du sud-est
  4. Library Resource
    Rapports et recherches
    décembre, 2000
    Mexique, Amérique centrale

    From a river-basin perspective, wastewater irrigation is an important form of water and nutrient reuse; however, there are important water quality, environmental, and public health considerations. This report explores the advantages and risks of urban wastewater reuse for crop production in the water-short Guanajuato river-basin in west-central Mexico, and then by a selective literature review demonstrates how common this practice is worldwide.

  5. Library Resource
    Rapports et recherches
    décembre, 2000
    Turquie

    Public domain datasets are freely available on the Internet are easy to obtain, and often more up-to-date than those from local sources. This simplifies the modeling process and increases the ability to model basins anywhere in the world, from anywhere with Internet access. Although not all types of data are available, and some conversions may be needed, the information provided does allow for quick and easy simulations of basins. The Semi-Distributed Land-Use Runoff Process (SLURP) hydrological model has been designed to take advantage of such data sources.

  6. Library Resource
    Rapports et recherches
    décembre, 2000

    The use of participatory tools and methods has increased dramatically in

    natural resource management (NRM) over the past decade, largely because of

    the recognition that sustainable NRM cannot be achieved without involving the

    individuals and communities who make decisions about how resources are

    used. Participation of resource users and other stakeholders is important not

    only in the management of resources, but also in research oriented toward the

    generation of information and innovations that shape how resources are

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