Resultados de la búsqueda | Land Portal

Resultados de la búsqueda

Mostrando ítems 1 a 9 de 14.
  1. Library Resource
    Documentos de conferencias e informes
    Diciembre, 2012
    África septentrional, Europa meridional

    Grasslands are one of the world's most widespread vegetation types, covering nearly 20% of the land surface and represent a major source of production of agricultural products. However, grassland vegetation across the Mediterranean region is changing at an unanticipated rate. These changes are the result of climatic and socio-economic changes.

  2. Library Resource
    Documentos de conferencias e informes
    Diciembre, 2011
    Rwanda, Burundi, Etiopía, Egipto, Sudán, Tanzania, Eritrea, Kenya, Uganda, África

    Remote sensed imagery in combination with secondary agricultural statistic was used to map crop water productivity (WP) in the Nile River Basin. Land productivity and crop tandardized gross value production (SGVP) were calculated at administrative level using the agricultural census data. Actual evapotranspiration (Eta) generated from remote sensing was used to assess crops consumptive water use. WP was then calculated by dividing SGVP by Eta in the cropped areas. Results show land productivity has a huge variation across the basin.

Búsqueda en la Biblioteca de Tierras

A través de nuestro sólido motor de búsqueda, puede explorar cualquier elemento de los más de 64.800 recursos rigurosamente seleccionados en la Biblioteca de la Tierra. Si desea obtener una visión general de lo que es posible, siéntase libre de examinar la  Guía de búsqueda

Comparta esta página