Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 19.
  1. Library Resource
    janvier, 1997
    Malawi, Europe, Afrique sub-saharienne

    Malawi’ s smallholder agriculture is facing a crisis, particularly in the more populated south. There is an insidious combination of land shortage, continuous cultivation of maize, declining soil fertility, low yields, deforestation, poverty and high population growth rate. Smallholder farmers are doing what they can to maintain household livelihoods under these difficult circumstances, however many of their actions, which are necessary for short term survival, such as the cultivation of hillsides, are not sustainable in the long term.

  2. 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

  3. Library Resource
    janvier, 1997

    Social forestry emerged amidst important changes in thinking about the role of forestry in rural development and a growing need for fuelwood. In an attempt to alleviate the fuelwood crisis, the World Bank encouraged the planting of Eucalyptus species in its social forestry programs in the 1980s. Eucalypts were the chosen tree species for the majority of social forestry projects because they survive on difficult sites and out-perform indigenous species and most other exotics in height and girth increment, producing wood for poles, pulp and fuel more rapidly.

  4. Library Resource
    janvier, 1997
    Cambodge, Océanie, Asie orientale

    A recent eighteen-month economic study of the benefits of alternative uses of forest and in Ratanakiri province recommends the exclusion of customary forest land from current and future commercial concessions. The study compares the economic benefits of using forest land in Ratanakiri for the traditional collection of non-timber forest products by ethnic communities, with the benefits of commercial timber harvesting. The main conclusions of the study are that non-timber forest products (NTFP) are worth a lot, much more than previously thought.

  5. Library Resource
    janvier, 1997

    Brief paper on the role of property rights in the economic analysis of environmental problems in Southeast Asia. First talks about the causal role of property rights in the existence of environmental problems, then how property rights must be incorporated into the economic analyses of these problems. Finally, addresses the extent to which changes in property regimes may offer scope for solving persistent environmental problems.

  6. Library Resource
    janvier, 1997
    Afrique sub-saharienne

    report considers the potential, constraints, successes and weaknesses of EIS (environment and land information systems, geographical information systems (GIS)), based on practical approaches in Zimbabwe were assessed and lessons-learnt were developed.The process of developing a national EIS in Zimbabwe is also in the evolutionary phase. The country does not yet have a comprehensive nationally co-ordinated EIS. At the time of this study, several information systems co-exist which can be considered EIS sub-systems.

  7. Library Resource
    janvier, 1997

    Soil erosion has conventionally been perceived as the chief cause of land degradation, yet the limited effectiveness and poor uptake of widely promoted physical and biological anti-erosion methods challenges this logic. An alternative perception focusing on prior land damage - notably to soil cover, architecture and fertility - permits an holistic, farmer-centred approach which has generated positive response to date.

  8. Library Resource
    janvier, 1997
    Thaïlande, Asie orientale, Océanie

    Population pressures play less of a role in deforestation than earlier studies of Thailand found. Between 1976 and 1989, Thailand lost 28 percent ofits forest cover. To analyze how road building, population pressure,and geophysical factors affected deforestation in Thailand during that period, Cropper, Griffiths, and Mani develop a model in whichthe amount of land cleared, the number of agricultural households,and the size of the road network are jointly determined.The model assumes that the amount of land cleared reflects an equilibrium in the land market.

  9. Library Resource
    janvier, 1997
    Amérique latine et Caraïbes

    This paper considers the evidence surrounding the popular view that common property management regimes (CPMRs) of forest management in Latin America must inevitably break down in the face of economic and demographic pressures. The evidence shows that there have been both positive and negative experiences, with a number of policy implications. The over-riding need is to correct for institutional and policy failures which have catalysed the erosion of CPMRs.

  10. Library Resource
    janvier, 1997
    Tchad, Afrique sub-saharienne

    Planning and education are needed on options for numbers of animals. land use in Chad to ensure that development considers the proper use, maintenance, and enhancement

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