Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 6.
  1. 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.

  2. 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.

  3. 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.

  4. Library Resource
    janvier, 1997
    Équateur, Amérique latine et Caraïbes

    In the literature about macroeconomics and deforestation, it is often supposed that strong foreign exchange outflows (e.g. debt service) increase deforestation, as higher poverty augments frontier migration and natural resources are squeezed to generate export revenues. This paper analyses the opposite phenomenon, i.e. the deforestation impact of substantial foreign exchange inflows, which is analysed in the "Dutch Disease" macroeconomics literature.

  5. Library Resource
    janvier, 1997
    Amérique latine et Caraïbes
  6. Library Resource
    janvier, 1997

    Forests potentially contribute to global climate change through their influence on the global carbon (C) cycle. They store large quantities of C in vegetation and soil, exchange C with the atmosphere through photosynthesis and respiration, are sources of atmospheric C when they are disturbed, become atmospheric C sinks during abandonment and regrowth after disturbance, and can be managed to alter their role in the C cycle. The world's forest contain about 830 Pg C (1015 g) in their vegetation and soil, with about 1.5 times as much in soil as in vegetation.

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