Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 13.
  1. Library Resource
    janvier, 1995
    Namibie, Afrique sub-saharienne

    Results from this study show that the over-used but under-researched association between grazing and land degradation in the Kalahari has been oversimplified. In typical Kalahari conditions, the ecological changes that have been brought about by grazing cannot be linked with more fundamental changes in ecosystem function. Basic soil processes appear relatively unaffected by grazing pressure outside the sacrifice zone, and there is no evidence to suggest that the resilience of the system has been affected through soil degradation.

  2. Library Resource
    janvier, 1996
    Afrique sub-saharienne

    Key findings and policy implications discussed in this document—Promoting Farm Investment for Sustainable Intensification of African Agriculture— include the following: Farmers are much more likely to invest in both productivity and land protection when they can produce cash crops. Livestock husbandry is a boon to farm investments, as it provides cash income, manure, and an insurance policy against crop failures. Land tenure insecurity, political instability, policy caprice, and wildly fluctuating farm prices dissuade investment.

  3. Library Resource
    janvier, 1996
    Afrique sub-saharienne

    Report draws attention to the structure of landholding as a set of mechanisms through which demographic changes in agrarian societies can alter the natural environment: demographically-induced change in the structure of landholding: farm holdings generally become smaller as an ever-increasing number of households enter the agricultural work force and seek to derive their livelihood from this fixed resource base holdings tend to become more fragmented, not simply in the number of parcels operated but in the distances between parcels, as farmers look harder and farther for whatever bits and p

  4. Library Resource
    janvier, 1996
    Afrique sub-saharienne

    This research report provides an in-depth understanding of many aspects of Senegalese agricultural policy, its historical impact, and more recent farmer responses to government attempts to recent farmer responses to government attempts to stimulate growth in the agricultural sector. Addressed directly are such questions as: How have farmers responded to changes in agricultural technology, prices, and marketing policies? What have been the policy successes and failures? What are the current trends in cropping productivity?

  5. Library Resource
    janvier, 1995
    Afrique du Sud, Afrique sub-saharienne

    Commercial farms in South Africa could become significantly more efficient if they became smaller. The government could encourage that trend by removing policies and distortions that favor large over small farms.Drawing on international evidence, van Zyl, Binswanger, and Thirtle discuss the sources of economies of scale.

  6. Library Resource
    janvier, 1995
    Zimbabwe, Afrique sub-saharienne

    This case study of Zimbabwe has examined developments in biotechnology against the background of a well-developed national agricultural research, plant breeding and seeds system. It has then assessed the constraints to biotechnology research, technology development and diffusion in the light of the resources available and the technology transfer mechanisms in place for different groups of farmers.

  7. Library Resource
    janvier, 1996
    Afrique sub-saharienne

    There is clearly a link between agricultural incentives and the environment, but quantitative data on such topics as soil quality and land use are inadequate for sound analysis.Mamingi studies the literature on how agricultural prices and macroeconomic policies affect agricultural supply and how that supply affects the environment. He addresses the question of how effective agricultural incentives are in boosting the agricultural supply, particularly in sub-Saharan Africa.Certain generalizations are common in the literature: Farmers are rational.

  8. Library Resource
    janvier, 1995
    Afrique sub-saharienne

    In urban areas of Cote d'Ivoire, human capital is the endowment that best explains welfare changes over time. In rural areas, physical capital especially the amount of land and farm equipment owned matters most.Empirical investigations of poverty in developing countries tend to focus on the incidence of poverty at a particular point in time. If the incidence of poverty increases, however, there is no information about how many new poor have joined the existing poor and how many people have escaped poverty.Yet this distinction is of crucial policy importance.

  9. Library Resource
    janvier, 1996
    Afrique sub-saharienne

    Report identifies numerous situations where poor data lead to incorrect estimates of African land and labor productivity. The report argues that better coordination of macro, meso, and micro data collection, reporting, and analysis efforts can lower costs and improve our ability to monitor trends and to quantify determinants of agricultural productivity. The report then summarizes key recommendations for improving agricultural productivity data and analyses.

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