Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 135.
  1. Library Resource
    Articles et Livres
    décembre, 2013
    Global

    Drylands are complex social-ecological systems, characterized by non-linearity of causation, complex feedback loops within and between the many different social, ecological, and economic entities, and potential of regime shifts to alternative stable states as a result of thresholds. As such, dryland management faces a high level of uncertainty and unpredictability.

  2. Library Resource
    Documents de politique et mémoires
    décembre, 2019
    Global

    Land degradation neutrality (LDN) is achieved if land degradation is avoided or reduced, and new degradation is balanced by reversing degradation elsewhere in the same land type through restoration or rehabilitation. The primary instrument for avoiding and reducing degradation is the application of sustainable land management (SLM) approaches and technologies. Because of its multifunctional roles and its sensitivity to land management, soil organic carbon (SOC) is one of the three global indicators for LDN, so predicting and monitoring change in SOC is vital to achieving LDN targets.

  3. Library Resource
    Articles et Livres
    décembre, 2019
    Tchad, Afrique occidentale, Burkina Faso, Mali, Mauritanie, Niger, Nigéria, Sénégal

    Located in the arid and semi-arid areas of West Africa, the Sahel has undergone profound changes over the past 50 years. Known for the prevalence of land degradation processes, the Sahel is suffering from the combined negative effects of population growth, human activities and climate variability, resulting in recurrent droughts and the continued decline of natural resources and land productivity.

  4. Library Resource
    Articles et Livres
    décembre, 2019
    Global

    The 2019 edition of the Land for Life Award puts the spotlight on individuals and organizations that made outstanding contributions to achieve land degradation neutrality on a large scale, with long-term changes and dedicated actions for 25 years or longer. Those remarkable projects involve local people, communities and the society, raising the level of their ambition. Meanwhile, recent assessments remind us that two billion hectares of land are now degraded worldwide. This represents an area larger than the territory of the Russian Federation, the biggest country in the world.

  5. Library Resource
    Articles et Livres
    décembre, 2019
    Global

    Land degradation and biodiversity loss are among the most pressing environmental challenges facing humanity. Land degradation has reduced the productivity of nearly one-quarter of the global land surface, impacted the wellbeing of about 3.2 billion people and cost about 10% of annual global gross domestic product in lost ecosystem services. An estimated 23% of total anthropogenic greenhouse gas emissions derive from agriculture, forestry and other land uses, contributing to climate change.

  6. Library Resource
    Articles et Livres
    décembre, 2017
    Éthiopie, Nicaragua, États-Unis d'Amérique

    Land provides crucial ecosystem services for human existence and human well-being, including provisioning, regulating, supporting and cultural services. Those services provide among others the production of fresh air, food, feed, fuel and fibre. They regulate the risks of natural hazards and climate change, offer cultural and spiritual values to our society, and support key ecological functions such as nutrient and water cycling, filtering and buffering, and are central to economic vitality.

  7. Library Resource
    Rapports et recherches
    décembre, 2013
    Global

    Gender equity is a matter of fundamental human rights and social justice, as well as a pre-condition for sustainable development. The empowerment of women and gender equity has been recognized as a significant driver of development, enhancing the effectiveness of programs, projects, and initiatives.

  8. Library Resource
    Rapports et recherches
    décembre, 2015
    Global

    In West Africa, many countries are adversely affected by the effects of desertification, land degradation and drought(DLDD), with climate change also increasingly making an impact on local livelihoods. The most visible consequences are a loss of soil fertility and a reduction in agricultural productivity, which can lead to food and social crises and, consequently, to increased poverty. Furthermore, farmers are often forced to exploit the land to its maximum capacity in order to obtain good yields and to avoid the risk of famine.

  9. Library Resource
    Rapports et recherches
    décembre, 2009
    Global

    Established in 1994, the United Nations to Combat Desertification (UNCCD) is the sole legally binding international agreement linking environment and development to sustainable land management. The Convention addresses specifically the arid, semi-arid and dry sub-humid areas, known as the drylands, where some of the most vulnerable ecosystems and peoples can be found.

  10. Library Resource
    Articles et Livres
    février, 2017
    Global

    The Scientific Conceptual Framework for Land Degradation Neutrality (LDN) provides a scientific foundation for understanding, implementing and monitoring LDN. It has been designed to create a bridge between the vision and the practical implementation of LDN, by defining LDN in operational terms. The conceptual framework is a product of the UNCCD Science-Policy Interface. Pursuit of LDN requires effort to avoid further net loss of the land-based natural capital relative to a reference state, or baseline.

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