Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 44.
  1. Library Resource
    Documents et rapports de conférence
    septembre, 2011
    Global

    Conservation Agriculture (CA) is increasingly promoted in Africa as an alternative for coping with the need to increase food production on the basis of more sustainable farming practices. CA is specifically seen as a way to address the problems of soil degradation resulting from agricultural practices that deplete the organic matter and nutrient content of the soil. It aims at higher crop yields and lower production costs. Yet, success with adopting CA on farms in Africa has been limited (Kassam et al., 2009).

  2. Library Resource
    Documents et rapports de conférence
    septembre, 2017
    Global

    With current rates of land degradation reaching
    ten to twelve million ha per year, there is an
    urgent need to scale up and out successful,
    profitable and resource-efficient sustainable
    land management practices to maintain the
    health and resilience of the land that humans
    depend on. As much as 500 million out of
    two billion ha of degraded land, mainly in
    developing countries, have restoration potential,
    offering an immediate target for restoration
    and rehabilitation initiatives.1 In the past,

  3. Library Resource
    Documents et rapports de conférence
    juin, 2015
    Global

    This report provides evidence of how increasingly
    scarce resources can be conserved, and also
    presents tools for policy-/decision-makers to
    promote and secure future wealth and human wellbeing
    through sustainable land management. It
    emphasises taking long-term benefits into account
    and focuses on practical solutions, as well as the
    context in which sustainable land management
    occurs. The report aims to ensure the returns of
    sustainable land management (e.g., economic
    growth, food security, sustainable livelihoods and

  4. Library Resource
    Documents et rapports de conférence
    juin, 2015
    Chine, Asie orientale

    Paddy rice agriculture affects food supply, climate, water, biodiversity, and ecosystems. It varies substantially over time and space, for example, continuous expansion in northeastern China and rapid loss in southern China in the past decades. However, no maps at fine spatial resolution (e.g., 30-m) are available to document and illustrate the spatial patterns and temporal dynamics of paddy rice planting areas in China.

  5. Library Resource
    Documents et rapports de conférence
    février, 2013
    Global

    Land degradation is a serious problem, particularly on vulnerable agricultural lands to soil erosion, which
    signifies the temporary or permanent decline in the productive capacity of the land (UN/FAO definition).
    Erosion is one of the most common problems around the world. Sanders (2004) considers that erosion
    and soil degradation issues have contributed to the decline of great civilizations in Egypt, China or
    Greece. The annual costs of soil erosion in the US are estimated between US$ 30 billion and US$ 44

  6. Library Resource
    Documents et rapports de conférence
    avril, 2016
    Jordanie, Asie occidentale

    Rangelands are the mainstay of pastoral livelihoods worldwide. Within rangelands, there are landscape depressions or lowlands characterized by high production potentials with their unique edaphic and hydrologic properties. The purpose of this ongoing research is to evaluate the effect of grazing exclusion on the vegetation characteristics and plant community structure in the arid lowland pastoral ecosystems. Plots were randomly identified within two distinct lowlands in Majidya and Sabha, in the Jordanian Badia.

  7. Library Resource
    Documents et rapports de conférence
    avril, 2016
    Global

    Despite their ecological, economic and social importance, Mediterranean grasslands continue to receive limited scientific, political and media attention. Grasslands are typically viewed as underutilized space, able to be transformed into more “valuable” land by placing it under cultivation, transforming it into forest land and/or privatizing it. This paper synthesizes a number of pertinent issues in relation to social and economic systems on grasslands within the southern Mediterranean region.

  8. Library Resource
    Documents et rapports de conférence
    janvier, 2017
    Global

    The concern for the well-being of land is often directly related to one’s proximity to the land, be it physically, economically or culturally. Land is more precious if one’s livelihood depend on it immediately than if one is merely a visitor. Land is valued differently if it is the base of one’s power or wealth than if one’s community is in need of its integrity and depends on the ecosystem services (ESS) that it provides. To some extent, this may explain the great challenge UNCCD has experienced in mustering international support for its mandate.

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