Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 262.
  1. Library Resource
    Publication évaluée par des pairs
    juin, 2023
    Madagascar, Afrique occidentale, Bénin, Burkina Faso, Guinée, Côte d'Ivoire, Mali, Niger, Sénégal

    Ce numéro de « Regards sur le foncier » reprend une partie des communications présentées lors du séminaire régional sur la gestion foncière locale en Afrique de l’Ouest et à Madagascar, organisé en mars 2023 à Saint-Louis du Sénégal, à l’initiative du Comité technique « Foncier & développement » (CTFD). Ce séminaire a réuni soixante-dix participants, membres d’organisations de la société civile, d’organisations paysannes ou des administrations foncières, et experts-chercheurs, de huit pays d’Afrique (Bénin, Burkina Faso, Côte d’Ivoire, Guinée, Sénégal, Madagascar, Mali, Niger).

  2. Library Resource

    Sustainability

    Publication évaluée par des pairs
    janvier, 2020
    Chine

    Topsoil is required to be stripped and reused to maintain land productivity in mining and construction activities. However, as a great threat to unprotected soil, wind erosion on topsoil replacement sites has not received enough research attention, which hinders the efficient implementation of wind erosion control measures in the right time and place on a national scale. This study aims to evaluate wind erosion on unprotected topsoil replacement sites (WEUTRS) in mainland China, examining its spatiotemporal pattern and demonstrating its significance for the relevant research and industry.

  3. Library Resource

    Sustainability

    Publication évaluée par des pairs
    janvier, 2020
    Global

    Land cover patterns in sub-Saharan Africa are rapidly changing. This study aims to quantify the land cover change and to identify its major determinants by using the Drivers, Pressures, State, Impact, Responses (DPSIR) framework in the Ethiopian Gozamin District over a period of 32 years (1986 to 2018). Satellite images of Landsat 5 (1986), Landsat 7 (2003), and Sentinel-2 (2018) and a supervised image classification methodology were used to assess the dynamics of land cover change.

  4. Library Resource

    Sustainability

    Publication évaluée par des pairs
    janvier, 2020
    Global

    The use of anionic polyacrylamide (PAM) as a soil conditioner could help prevent soil loss by water. In this study, we determined the effective granular PAM rate that best reduces runoff and soil loss from Oxisols. Furthermore, the effectiveness of the selected PAM rate was tested by applying it in a mixture with gypsum (G) or lime (L).

  5. Library Resource

    Sustainability

    Publication évaluée par des pairs
    janvier, 2020
    Chine

    Traditional farming practice of rice field co-culture is a time-tested example of sustainable agriculture, which increases food productivity of arable land with few adverse environmental impacts. However, the small-scale farming practice needs to be adjusted for modern agricultural production. Screening of rice field co-culture farming models is important in deciding the suitable model for industry-wide promotion. In this study, we aim to find the optimal rice field co-culture farming models for large-scale application, based on the notion of food productivity.

  6. Library Resource

    Sustainability

    Publication évaluée par des pairs
    janvier, 2016
    Global

    The sustainability of society hinges on the future of agriculture. Though alternatives to unsustainable, high-input industrial agriculture are available, agricultural systems have been slow to transition to them. Much of the resistance to adopting alternative techniques stems from the perceived costs of alternative agriculture, mainly in terms of yields.

  7. Library Resource

    Sustainability

    Publication évaluée par des pairs
    janvier, 2016
    Mexique

    Food flow data provide unique insights into the debates surrounding the sustainability of land based production and consumption at multiple scales. Trade flows disguise the spatial correspondence of production and consumption and make their connection to land difficult. Two key components of this spatial disjuncture are land use displacement and economic regional decoupling. By displacing the environmental impact associated with food production from one region to another, environmental trajectories can falsely appear to be sustainable at a particular site or scale.

  8. Library Resource

    Sustainability

    Publication évaluée par des pairs
    janvier, 2017
    Global

    Land-based production provides societies with indispensable goods such as food, feed, fibre, and energy. Yet, with economic globalisation and global population growth, the environmental and social trade-offs of their production are ever more complex. This is particularly so since land use changes are increasingly embedded in networks of long-distance flows of, e.g., material, energy, and information.

  9. Library Resource

    Sustainability

    Publication évaluée par des pairs
    janvier, 2017
    Ouganda

    The extent of land affected by degradation in Uganda ranges from 20% in relatively flat and vegetation-covered areas to 90% in the eastern and southwestern highlands. Land degradation has adversely affected smallholder agro-ecosystems including direct damage and loss of critical ecosystem services such as agricultural land/soil and biodiversity. This study evaluated the extent of bare grounds in Nakasongola, one of the districts in the Cattle Corridor of Uganda and the yield responses of maize (Zea mays) and common bean (Phaseolus vulgaris L.) to different tillage methods in the district.

  10. Library Resource

    Sustainability

    Publication évaluée par des pairs
    janvier, 2018
    Brésil

    Important among global issues is the trilemma of abrupt climate change, food insecurity, and environmental degradation. Despite the increasing use of fossil fuel, about one third of global C emissions come from tropical deforestation and indiscriminate use of agricultural practices. Global food insecurity, affecting one in seven persons, aggravates environmental degradation. The importance of judicious land use and soil sustainability in addressing the trilemma cannot be overemphasized.

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