Search results | Land Portal
  1. Northern America
  2. 1996
  3. Search results
Search results

Search results

Showing items 1 through 9 of 11.
  1. Library Resource

    Understanding global trends in the use of wheat diversity and international flows of wheat genetic resources

    Journal Articles & Books
    December, 1996
    Mexico, Canada, Guatemala, Northern Africa, Southern Asia

    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

  4. Library Resource

    Temporal and Spatial Evaluation of Soil Conservation Policies

    Policy Papers & Briefs
    December, 1996
    United States of America

    This paper presents estimates of the benefits and costs of alternative soil conservation policies in a spatially and temporally consistent framework. The policies considered are implementation of soil conservation practices with an objective of reducing erosion to a site's tolerance level and a policy with an objective of a voluntary 50% reduction in conventional tillage. Costs and erosion benefits of these two policies are compared with that obtained from CRP. The changes in erosion and cost are estimated relative to 1992 levels.

  5. Library Resource

    Geographical information systems - Applications to marine fisheries

    Journal Articles & Books
    December, 1996
    France, Philippines, South Africa, Spain, Germany, China, Italy, Tonga, Peru, Argentina, United Kingdom, Costa Rica, Georgia, 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.

  6. Library Resource

    European Timber Trends and Prospects: Into the 21st Century

    Journal Articles & Books
    December, 1996
    France, Estonia, Lithuania, Switzerland, Belgium, Spain, Turkey, Croatia, Sweden, Germany, Denmark, Ukraine, Bulgaria, United Kingdom, Greece, Belarus, Finland, United States of America, Japan, Hungary, Italy, Portugal, Poland, Netherlands, Ireland, Czech Republic, Romania, Norway, Austria, Europe, Asia
    Forest Tenure
    forestry
    natural resources management

    This report reviews the outlook for the supply and demand of roundwood and forest products, and the balance between the two until 2020, while taking into account recycling, energy and trade issues. It covers the forest and forest products sector, including the forest itself, as well as production, trade and consumption of forest products and wood for energy

  8. Library Resource

    Forest-dependent people

    Journal Articles & Books
    December, 1996
    Mali, Sweden, Canada, Italy
    Forest Tenure
    land policies
    farmers
    natural resources management
    land use
    forestry
    compensation
    land management
    forest land

    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.

  9. Library Resource

    Forestry extension

    Journal Articles & Books
    December, 1996
    India, Burkina Faso, Pakistan, United States of America
    Forest Tenure
    decentralization
    public ownership
    farmers
    research
    forestry
    forest land
    women

    This issue of Unasylva focuses on the challenges facing forestry extension and current attempts to respond to them.

Land Library Search

Through our robust search engine, you can search for any item of the over 64,800 highly curated resources in the Land Library. 

If you would like to find an overview of what is possible, feel free to peruse the Search Guide. 

Share this page