Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 45.
  1. Library Resource
    Rapports et recherches
    novembre, 2021
    Afrique, Amériques, Asie, Europe, Océanie

    La réponse à la demande accrue de produits alimentaires accentue la pression exercée au niveau mondial sur les ressources que sont les eaux, les terres et les sols. L’agriculture a un rôle à jouer dans l’allégement de cette pression et dans la concrétisation des objectifs en matière de climat et de développement. Des pratiques agricoles durables peuvent déboucher sur des améliorations directes de l’état des terres, des sols et de l’eau, mais elles peuvent aussi être bénéfiques aux écosystèmes et réduire les émissions issues de la terre.

  2. Library Resource
    Documents et rapports de conférence
    décembre, 1987
  3. Library Resource
    Articles et Livres
    novembre, 2018
    Burkina Faso, Ghana, Afrique occidentale

    This Atlas summarizes recent advances in interdisciplinary approaches and research to address the different components of West African urban food systems, including urban and peri-urban agriculture. It thereby draws on the results of several major collaborative research projects and stakeholder consultations conducted in West Africa over the past two decades, and in particular on the UrbanFoodPlus project in Ghana and Burkina Faso (www.urbanfoodplus.org). The publication targets with its innovative design a broad range of stakeholders.

  4. Library Resource
    Articles et Livres
    décembre, 2015

    Agricultural landscapes presently cover about 46 % of earth terrestrial surface. This cultivated area is decreasing, whereas the global food demand is projected to increase up to 70 % in 2050. The intensification of agriculture is not a solution to this food issue because intensive agriculture has often resulted in pollution and loss of biodiversity. On the other hand, mechanistic models with optimization algorithms can be used to design alternative land uses for sustainable agriculture.

  5. Library Resource
    Documents et rapports de conférence
    décembre, 2018
    Serbie, France, Lituanie, Turquie, Afghanistan, Azerbaïdjan, Bélarus, Lettonie, Inde, Kazakhstan, Roumanie, République tchèque

    The conference is aimed at dissemination of scientific research results, sharing of experience, improvement of foreign language and cross - cultural communication skills, and establishing of international contacts.

  6. Library Resource
    Articles et Livres
    décembre, 2016
    Global
  7. Library Resource
    Articles et Livres
    décembre, 2014
    Zimbabwe

    By increased rural-urban migration in many African countries, the assessment of changes in catchment hydrologic responses due to urbanization is critical for water resource planning and management. This paper assesses hydrological impacts of urbanization on two medium-sized Zimbabwean catchments (Mukuvisi and Marimba) for which changes in land cover by urbanization were determined through Landsat Thematic Mapper (TM) images for the years 1986, 1994 and 2008. Impact assessments were done through hydrological modeling by a topographically driven rainfall-runoff model (TOPMODEL).

  8. Library Resource
    Articles et Livres
    décembre, 2006
    Inde, Australie, Kenya, Afrique, Afrique orientale

    The need to increase water productivity is a growing global concern as the World Commission on Water has estimated that demand for water will increase by c. 50% over the next 30 years and approximately half of the world's population will experience conditions of severe water stress by 2025. Three-quarters of African countries are expected to experience unstable water supplies, whereby small decreases in rainfall induce much larger reductions in streamflow.

  9. Library Resource
    Matériels institutionnels et promotionnels
    août, 2018
    Italie

    The forest-water nexus is crucial for ensuring water and food security, as well as for achieving sustainable development objectives. Only by recognising the interlinkages of forests and water, and how the management of these resources influences productive multi-functional landscapes can appropriate long-term benefits from landscape planning and management be actualized. And while it is important that generalized assumptions about the forest-water nexus are not widely applied due to their complex and context specific nature, the knowledge is available to lend guidance.

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