Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 39.
  1. Library Resource
    Articles et Livres
    décembre, 2012
    États-Unis d'Amérique, Chine, Europe, Afrique

    Over the past decade, sustainable development has become a pivotal element of innovation in various areas. Industrial biotechnology - through its potential to reform our energy resources - is of specific interest given its controversial reception. With the ongoing shift from a fossil-fuel-based to a bio-based economy, the demand for biomass production for biofuels and biomaterials has increased dramatically. Although countries such as the USA may have enough land-surface available, it is not likely that the necessary biomass to 'fuel' Europe can be grown domestically.

  2. Library Resource
    Articles et Livres
    décembre, 2012
    Népal, France, Yémen, Suisse, États-Unis d'Amérique, Israël, Chili, Allemagne, Chine, Italie, Australie, Malte, Inde, Sri Lanka, Thaïlande

    En pocas palabras, la escasez de agua tiene lugar cuando la demanda supera el suministro de agua dulce en un área determinada. Escasez de agua = un exceso de demanda de agua para el suministro disponible Esta situación aparece como consecuencia de una elevada demanda agregada por parte de todos los sectores que consumen agua respecto al suministro disponible, bajo las condiciones de infraestructuras y las disposiciones institucionales existentes.

  3. Library Resource
    janvier, 2012
    Népal, Brésil, Inde, Mexique, Chine, Cameroun, Océanie, Afrique sub-saharienne, Asie méridionale, Asie orientale

    This report evaluates the progress achieved in forest management by indigenous people and local communities, which was set as a key objective at the 1992 Earth Summit held in Rio de Janeiro, Brazil.

  4. Library Resource
    janvier, 2012
    Europe, Afrique sub-saharienne, Afrique septentrionale, Asie orientale, Océanie, Asie occidentale, Amérique latine et Caraïbes

    The Global Environment Facility (GEF) and the UN Development Programme (UNDP) have published this annual report on joint projects financed during 2011 on ecosystems and biodiversity preservation, green development strategies, and sustainable use of water and ocean resources, among other topics. The GEF financed and supported 323 UNDP projects in 2011.

  5. Library Resource
    janvier, 2012
    Asie orientale, Afrique sub-saharienne, Océanie, Asie méridionale, Amérique latine et Caraïbes

    This report aims to improve the knowledge base for scaling-up investments in land management technologies that sequester soil carbon for increased productivity under changing climate conditions. The report presents the following key messages.

  6. Library Resource
    janvier, 2012
    Bangladesh, Viet Nam, Guatemala, Pérou, République-Unie de Tanzanie, Ghana, Inde, Thaïlande, Afrique sub-saharienne, Asie méridionale, Amérique latine et Caraïbes, Asie orientale, Océanie

    This comparative study highlights that rainfall variability and food insecurity are key drivers for human mobility. The empirical research is based on eight country case studies, including a 1,300 household survey and participatory research sessions involving 2,000 individuals. The results reveal that migration is an important risk management strategy for vulnerable households. Land scarce households trying to cope with food insecurity send migrants during the hunger season to find food or money to buy food.

  7. 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.

  8. Library Resource
    Articles et Livres
    février, 2012
    Afrique sub-saharienne, Amérique centrale, Amérique du Sud, Asie orientale, Caraïbes, Océanie, Asie méridionale

    Today, 370 million people live in cities in earthquake prone areas and 310 million in cities with a high probability of tropical cyclones. By 2050 these numbers are likely to more than double, leading to a greater concentration of hazard risk in many of the world's cities. The authors discuss what sets hazard risk in urban areas apart, summarize estimates of valuation of hazard risk, and discuss implications for individual mitigation and public policy.

  9. Library Resource
    Articles et Livres
    décembre, 2012
    États-Unis d'Amérique, Ukraine, Chine, Uruguay, Canada, Argentine, Fédération de Russie, Mexique, Amérique septentrionale, Amérique du Sud

    Liu, X., Burras, C. L., Kravchenko, Y. S., Duran, A., Huffman, T., Morras, H., Studdert, G., Zhang, X., Cruse, R. M. and Yuan, X. 2012. Overview of Mollisols in the world: Distribution, land use and management. Can. J. Soil Sci. 92: 383–402. Mollisols – a.k.a., Black Soils or Prairie Soils – make up about 916 million ha, which is 7% of the world's ice-free land surface. Their distribution strongly correlates with native prairie ecosystems, but is not limited to them. They are most prevalent in the mid-latitudes of North America, Eurasia, and South America.

  10. Library Resource
    Articles et Livres
    décembre, 2012
    États-Unis d'Amérique, Chine

    Spatial and temporal resolution is essential for understanding the spatial and temporal characteristics and dynamics of wetland ecosystems. However, single satellite imagery with both high spatial resolution and high temporal frequency is currently unavailable. Instead, the development of a bi-sensor monitoring technique utilizing spatial details of middle-to-high resolution data and temporal details of coarse spatial resolution data is highly desirable.

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