Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 6.
  1. Library Resource
    Articles et Livres
    décembre, 2015
    Portugal

    Research dedicated to rare endemic plants is usually focused on one given aspect. However, holistic studies, addressing several key issues, might be more useful, supporting management programs, while unravelling basic knowledge about ecological and population level processes. A more comprehensive approach to research is proposed, encompassing: phylogenetics/systematics, pollination biology and seed dispersal, propagation, population genetics, species distribution models (SDMs), threats and monitoring.

  2. Library Resource
    Articles et Livres
    décembre, 2014
    États-Unis d'Amérique, Mexique, Espagne, Maroc, Chine, Amérique septentrionale, Amérique centrale, Amérique du Sud, Europe, Afrique, Afrique septentrionale, Asie, Asie méridionale
  3. Library Resource
    Documents et rapports de conférence
    décembre, 2012
    Afrique septentrionale, Europe méridionale

    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.

  4. Library Resource
    Rapports et recherches
    décembre, 2001
    Chine, Inde, Indonésie, Japon, Philippines, Portugal, États-Unis d'Amérique, Afrique orientale

    More irrigated land is devoted to rice than to any other crop. A method to save water in irrigated rice cultivation is the intermittent drying of the rice fields, known as alternate wet/dry irrigation (AWDI). This report reviews previous studies in AWDI, with a focus on mosquito vector control, water saving, and rice yields. Examples are provided from a number of countries.

  5. Library Resource
    Articles et Livres
    décembre, 2012
    Inde, Chine, Mexique, Espagne, Pakistan, Bangladesh, Asie, Asie orientale, Asie méridionale, Amérique septentrionale

    Besides India, there are a few other countries like Mexico, Spain, Pakistan, Bangladesh and China which also make intensive use of groundwater. This highlight reviews groundwater institutions and policies in these countries, with a special focus on the interlinkages between energy and groundwater. It finds that while there are useful lessons from international experience, none of the other countries offer unmetered electricity to farmers as India does. It is this lack of energy accounting and resistance to metering that is at the heart of the invidious energy-irrigation nexus in India.

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