Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 7.
  1. Library Resource
    Articles et Livres
    décembre, 1996
    Mexique, Canada, Guatemala, Afrique septentrionale, Asie méridionale

    This paper discusses the centers of origin and diversity for bread wheat; sketches historical patterns in the sources and use of wheat genetic resources in modern plant breeding; identifies and compares indicators of genetic diversity used by social and biological scientists; reviews the relationship of wheat genetic diversity to yield stability and vulnerability to disease; develops a profile of the structure of genetic variation in wheat in the developing world today; and investigates how scientific plant breeding has influenced the structure of genetic variation among the major bread whe

  2. Library Resource
    Articles et Livres
    décembre, 1996
    France, Philippines, Afrique du Sud, Espagne, Allemagne, Chine, Italie, Tonga, Pérou, Argentine, Royaume-Uni, Costa Rica, Géorgie, Canada

    The late 20th century has witnessed increasing crises in the world's marine fisheries. A causal analysis of these reveals that a common element are various manifestations of spatial inequity. This most frequently includes the inequity of access rights to the resource, but factors such as variations in resource depletion, spatio-temporal variations in stock recruitment, the imposition of regulatory zoning, destruction of marine ecosystems and the siting of mariculture facilities are other examples. To resolve some of these problems, management practices must be improved.

  3. Library Resource
    Articles et Livres
    décembre, 1996
    Mali, Suède, Canada, Italie

    This issue of Unasylva considers some of the issues related to forest-dwelling and forest-dependent people, and particularly their role in and relationship to sustainable forest management.

  4. Library Resource
    Réglementations
    janvier, 1996
    Amériques, Amérique septentrionale, Canada

    These Regulations provide for the management and development of the Wooddale Agriculture Development Area. They contain provisions on planning, administration of the area, access rights, road construction, residential buildings, quarry, mining and drilling, residential uses, silviculture and farming.

    Implements: Lands Act (S.N.L. 1991, c. 36). (2010)

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