Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 131.
  1. Library Resource
    Articles et Livres
    décembre, 2016
    Argentine, Burkina Faso, République centrafricaine, Chine, Cameroun, Algérie, Érythrée, Éthiopie, Mali, Mauritanie, Niger, Nigéria, Soudan, Sénégal, Soudan du Sud, Tchad, Asie central

    It took scientists more than three decades to transform a perceived desertification crisis in the Sahel into a non-event. Looking beyond the Sahel, the chapters in this book provide case studies from around the world that examine the use and relevance of the desertification concept.

  2. Library Resource
    Publication évaluée par des pairs
    octobre, 2016
    Népal

    Over 94 % of Nepalese migrant workers are male youth who leave their female counterparts behind to manage agriculture alongside their traditional domestic chores. Changing agrarian and labour landscapes shape food security, livelihood choices and the wellbeing of those who continue to engage in local small-scale agriculture. The study aims to understand the interactions between household livelihoods, food security and the wellbeing of left-behind women and lower-caste farmers. It includes a literature review, and draws results from 69 in-depth interviews with women farmers.

  3. Library Resource
    Rapports et recherches
    octobre, 2016
    Burkina Faso, Ghana, Côte d'Ivoire

    This chapter is a case study that tests hypotheses in order to determine if political factors can reduce violence in cases of climate-change-induced or -aggravated agro-pastoral conflicts over natural resources. Three West African countries were selected because of their common socio-economic and environmental characteristics and because they host comparable farmer–herder conflicts: Burkina Faso, Côte d’Ivoire and Ghana. The level of farmer–herder conflicts is estimated to have risen between 1960 and 2000 in the three countries.

  4. Library Resource
    Articles et Livres
    avril, 2016
    Asie central, Kazakhstan, Kirghizistan, Tadjikistan, Turkménistan, Ouzbékistan

    Land degradation is a major challenge for agricultural and rural development
    in Uzbekistan. Our research findings indicate that the costs of land
    degradation in Uzbekistan are substantial; reaching about 0.85 billion USD annually
    resulting from the loss of valuable land ecosystem services due to land use and
    land cover changes alone between 2001 and 2009. On the other hand, economic
    simulations also show that the returns from actions to address land degradation can
    be four times higher their costs over a 30-year planning horizon, i.e. every dollar

  5. Library Resource
    Articles et Livres
    décembre, 2016
    Global

    The Economics of Land Degradation (ELD) initiative seeks to develop a
    science basis for policy actions to address land degradation. The purpose of this
    chapter is to provide with a conceptual framework and sound and feasible
    methodological standards for ELD assessments at global and national levels. Only
    if some basic standards are identified and adhered to, comparative assessments can
    be conducted between countries and useful aggregation of findings, based on these
    case studies, can be achieved. Therefore, using the Total Economic Value

  6. Library Resource
    Articles et Livres
    août, 2016
    Asie central, Kazakhstan, Kirghizistan, Tadjikistan, Turkménistan, Ouzbékistan

    Land degradation affects negatively the livelihoods and food security of
    global population. There have been recurring efforts by the international community
    to identify the global extent and severity of land degradation. Using the long-term
    trend of biomass productivity as a proxy of land degradation at global scale, we
    identify the degradation hotspots in the world across major land cover types. We
    correct factors confounding the relationship between the remotely sensed vegetation

  7. Library Resource
    Articles et Livres
    décembre, 2016

    There is an ongoing debate on what constitutes sustainable intensification of agriculture (SIA). In this paper, we propose that a paradigm for sustainable intensification can be defined and translated into an operational framework for agricultural development. We argue that this paradigm must now be defined—at all scales—in the context of rapidly rising global environmental changes in the Anthropocene, while focusing on eradicating poverty and hunger and contributing to human wellbeing.

  8. Library Resource
    Articles et Livres
    décembre, 2016

    Measurements of nutrient stocks and greenhouse gas (GHG) fluxes are typically collected at very local scales (<1 to 30 m2) and then extrapolated to estimate impacts at larger spatial extents (farms, landscapes, or even countries). Translating point measurements to higher levels of aggregation is called scaling. Scaling fundamentally involves conversion of data through integration or interpolation and/or simplifying or nesting models. Model and data manipulation techniques to scale estimates are referred to as scaling methods.

  9. Library Resource
    Articles et Livres
    septembre, 2016
    Costa Rica, Guatemala, Honduras, Amérique centrale, Amérique du Sud

    The impacts of climate change exacerbate the myriad challenges faced by smallholder farmers in the Tropics. In many of these same regions, there is a lack of current, consistent, and spatially-explicit data, which severely limits the ability to locate smallholder communities, map their adaptive capacity, and target adaptation measures to these communities.

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