Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 48.
  1. Library Resource
    Documents et rapports de conférence
    juillet, 2013
    Asie occidentale, Jordanie

    Water scarcity and land degradation are widespread problems that affect agricultural productivity, food security and environmental quality in several parts of the world, particularly in the dry areas. Sustainable management of soil and water is necessary to optimize the use of limited rainwater for crop production and to decrease soil erosion. One management option is utilizing rainfall more efficiently through water harvesting. In arid areas, different types of water harvesting techniques (WHT) are being developed by

  2. Library Resource
    Rapports et recherches
    septembre, 2019
    Afghanistan, Émirats arabes unis, Égypte, Inde, Jordanie, Liban, Maroc, Oman, Pakistan, Soudan, République arabe syrienne, Tunisie, Turquie, Ouzbékistan, Afrique septentrionale, Asie méridionale, Asie central, Asie occidentale

    ICARDA continued to play a critical role in the development, improvement, and dissemination of climate-resilient crop varieties last year. The varieties strengthened food and nutritional security and provided a critical defense against extreme temperatures, water scarcity, and the emergence of new pests and diseases.

  3. Library Resource
    Rapports et recherches
    avril, 2008
    Jordanie, Asie occidentale

    The project aims to improve the productivity of degraded rangelands through efficient utilization of limited rainfall. Nearly 48% of farmers in the Muhareb community own flocks, with an average flock size of about 159 head. About 52% of farmers in Um Al Naám own flocks, with an average of 125 head; about 63% of farmers in Muhareb community own a small flock (average 28 head), or a medium flock size (30%, average 293 head), or a large flock (7%, average 751 head. However, about 72% of farmers in Um Al Naám own a small flock, with an average flock size of 36 head.

  4. Library Resource
    Rapports et recherches
    décembre, 2000
    Arménie, Azerbaïdjan, Géorgie, Iran, Kazakhstan, Kirghizistan, République arabe syrienne, Tadjikistan, Turkménistan, Ouzbékistan, Asie méridionale, Asie central, Asie occidentale

    This issue of Caravan chronicles ICARDA’s efforts in developing a research strategy and a need-based research program for the CAC region. In doing so, ICARDA played a major role in bringing together all partners, most importantly donors. The article on page 8 traces the history of this effort and provides an overview of the current status of collaboration.

  5. Library Resource
    Rapports et recherches
    août, 2012
    Afrique septentrionale, Algérie, Libye, Maroc, Afrique orientale, Érythrée, Éthiopie, Asie central, Kazakhstan, Tadjikistan, Turkménistan, Ouzbékistan, Asie méridionale, Iran, Asie occidentale, Bahreïn, Iraq, Jordanie, Koweït, Oman, Qatar, Arabie saoudite, République arabe syrienne, Émirats arabes unis

    This issue of Caravan describes the new program, and some of the research innovations it will build on. The issue begins with two ‘opinion pieces’ by scientists from partner organizations in the CRP. They share lessons learnt from past successes (and failures), and ideas that could be applied to dryland

  6. Library Resource
    Articles et Livres
    décembre, 2016
    Namibie, Afrique australe

    Achieving cooperation in natural resource management is always
    a challenge when incentives exist for an individual to maximise her short term
    benefits at the cost of a group. We study a public good social dilemma in water
    infrastructure provision on land reform farms in Namibia. In the context of the
    Namibian land reform, arbitrarily mixed groups of livestock farmers have to share
    the operation and maintenance of water infrastructure. Typically, water is mainly
    used for livestock production, and livestock numbers are subject to high fluctuations

  7. Library Resource
    Documents et rapports de conférence
    mars, 2016
    Asie occidentale, Jordanie

    The main objective of this study is to introduce the first consistent long ­term land cover database for Jordan. The Jordan National Land Cover Database (JNLCD) consists of four land cover maps for the years 1984, 1991, 1998, and 2014 that were developed at 30m resolution using a total of 11 Landsat TM/OLI satellite scenes. We primarily applied ISO DATA classification method and rule ­based method for refining misclassified classes. The overall accuracy achieved for the 1984 land cover map was 88% and for the 2014 land cover map was 93%.

  8. Library Resource
    Articles et Livres
    novembre, 2013
    Asie méridionale, Inde

    Drylands are characterized by physical water scarcity, often associated with land degradation and
    desertifi cation. Other factors that contribute to these problems include high population densities,
    unwise agricultural practices and overgrazing. However, while desert ecosystems are fragile and
    vulnerable and can collapse in the short term, given the right conditions and protection, these
    areas also have a great potential for recovery. Examples of the recovery of areas have led to the

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