Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 16.
  1. Library Resource
    Articles et Livres
    décembre, 1977

    Increasing interest in the federally owned lands by individuals and groups representing a broad cross section of society has intensified public land management problems. Pressures for preservation, conservation, and additional non-market uses have resulted in management conflicts.

  2. Library Resource
    Articles et Livres
    décembre, 1977
    France, Nigéria, Espagne, Zambie, Iraq, Australie, Côte d'Ivoire, Kenya, Jordanie, Maroc, République arabe syrienne, Libye, Somalie, Madagascar, République-Unie de Tanzanie, Botswana, Argentine, Inde, Soudan, Liban

    There is a urgent need for a better understanding of the risks of soil degradation and their geographical distribution as well as a better knowledge of where degradation occurs at present. it would be desirable to combine soil conservation activities with other elements for increasing crop production.Erosion, salinity and alkalinity and the loss of soil fertility seriously reduce the natural potential of soils to produce food fibres. During the meeting, many criteria to assess the various types of soil degradation were outlined by the experts.

  3. Library Resource
    Articles et Livres
    décembre, 1977
    Ghana, Italie

    An international journal of forestry and forest industries

  4. Library Resource
    Articles et Livres
    décembre, 1977
    Colombie, Amérique du Sud, Amérique centrale

    This audiotutorial unit (cassette, printed script, 139 color slides, study guide, self-evaluation test), prepared by the Communications Support Unit at CIAT, is available for use with a manually or automatically synchronized slide projector/cassette tape recorder. Each unit is available from the Distribution Office at a cost of US$$50; photocopies of the study guide alone can be obtained from the Bean Information Center. Hybridization or crossing constitutes the principal means for genetic improvement of plants.

  5. Library Resource
    Articles et Livres
    décembre, 1977
    Colombie, Amérique du Sud, Amérique centrale

    This audiotutorial unit (cassette, printed script, 93 color slides, Study guide, self-evaluation test), prepared by the Communications Support Unit at CIAT, is available for use with a manually or automatically synchronized slide projector/cassette tape recorder. Each unit is available from the Distribution Office at a cost of US$ 50; photocopies of the study guide alone can be obtained from the Cassava Information Center. One of the main factors limiting to cassava production is disease.

  6. Library Resource
    Articles et Livres
    décembre, 1977

    Land use policy unquestionably requires information about land ownership. During the Congressional debate on the Land Use Policy and Planning Assistance Act of 1972, Senator Henry Jackson of Washington recognized the need for land ownership information when he said: "Rational land use planning would be impossible without knowledge of patterns of land ownership within a given area." (1) Yet this information is not generally available for the planning process.

  7. Library Resource
    Articles et Livres
    décembre, 1977

    This study seeks to contribute to the development of procedures which provide useful information to decision-makers and affected people regarding the national income and employment impacts of railroad branch line abandonment. There are three major parts to this paper. The first part probes the underlying assumptions of public investment analysis. It is noted that non-Pareto optimal welfare changes occur whether or not abandonment takes place.

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