Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 29.
  1. Library Resource
    Land Use and Land Tenure in Mongolia: A Brief History and Current Issues
    Documents et rapports de conférence
    janvier, 2006
    Mongolie

    This essay argues that an awareness of the historical relation- ships among land use, land tenure, and the political economy of Mongolia is essential to understanding current pastoral land use patterns and policies in Mongolia. Although pastoral land use patterns have altered over time in response to the changing political economy, mobility and flexibility remain hallmarks of sustainable grazing in this harsh and variable climate, as do the communal use and management of pasturelands.

  2. Library Resource
    Documents et rapports de conférence
    décembre, 2005

    In the Sahel, sandy soils are widespread and support not only most of pearl millet production, the major staple crop in the region, but also forage production for livestock. Parent sediments of these soils have an aeolian origin and hence are prone to wind erosion. However, the clay content, albeit very low, results in the formation of crusts during rainfall, thus leading to runoff and water erosion. Squall lines, major rainfall events of the rainy season, are usually preceded by intense wind.

  3. Library Resource
    Documents et rapports de conférence
    décembre, 2005
    Équateur

    In the Ecuadorian Cordillera, the hardened volcanic ashes (cangahuas) account for 15% of the cultivated area. The soil resulting from the fragmentation of these materials, generally by heavy machinery, shows an apparent stable millimetric structure. However, this new structure is highly susceptible to disintegration under rain, because it contains no organic matter and has a sandy-silt composition with very little mineralogical clay, and the material itself is readily eroded.

  4. Library Resource
    Documents et rapports de conférence
    décembre, 2005
    Australie, Thaïlande

    Acidification of soil profiles from legume and N fertilized crops is a serious sustainability threat. Under tropical conditions of Northeast Thailand and Northern Australia, acidification to >90 cm has been recorded in Stylosanthes and Leucaena based pasture systems. Acidification has also been measured in other Australian cropping systems fertilized with urea or ammonium forms of N.

  5. Library Resource
    Documents et rapports de conférence
    décembre, 2005
    Éthiopie, Afrique orientale

    “The objectives of this workshop are to review and discuss the main findings and policy implications of recent research conducted on these topics by IFPRI, Wageningen University and Research Center (WUR), the International Livestock Research Institute (ILRI), Mekelle University (MU), the Ethiopian Agricultural Research Organization (EARO) and other Ethiopian collaborators; to discuss options for improving the development of agricultural markets and land management in Ethiopia, considering different stakeholders’ perspectives; and to develop recommendations for priority policy actions and fu

Rechercher dans la bibliothèque foncière

Grâce à notre moteur de recherche robuste, vous pouvez rechercher n'importe quel document parmi les plus de 64 800 ressources hautement conservées dans la bibliothèque du foncier.

Si vous souhaitez avoir un aperçu de ce qui est possible, n'hésitez pas à consulter le guide de recherche.

 

Partagez cette page