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Showing items 1 through 9 of 7.
  1. Library Resource
    Journal Articles & Books
    December, 1991
    Pakistan, Southern Asia
  2. Library Resource
    Journal Articles & Books
    December, 1991
    Nepal, France, Bolivia, Sudan, Thailand, Italy

    To produce the desired results, therefore, watershed management efforts must incorporate "forest hydrology", "soil and water conservation" and "land use planning" into a broader, logical framework that takes into consideration not only physical interrelationships but economic, social and institutional factors as well. In this issue, Unasylva examines several facets of watershed management.

  3. Library Resource
    Journal Articles & Books
    December, 1991
    France, Zambia, Afghanistan, Zimbabwe, Australia, Greece, Guinea, Ethiopia, Pakistan, Colombia, Panama, Kenya, Jordan, Philippines, Libya, Italy, Botswana, Netherlands, Argentina, Sudan, Europe, Asia, Africa, Northern America

    Extensive grazing is the predominant form of land use on at least a quarter of the world’s land surface, in which livestock are raised on food that comes mainly from rangelands. Extensive grazing differs from crop or forestry production, in which the produce remains in situ whilst growing. Evaluation for extensive grazing, unlike that for cropping or forestry, must take into account the production of both grazing forage, termed primary production, and the livestock that feed on this forage, termed secondary production.

  4. Library Resource
    Journal Articles & Books
    December, 1991
    Egypt, Bangladesh, Nigeria, Kenya, Israel, Chile, Peru, China, Ethiopia, Republic of Korea, Niger, Thailand, Nepal, Morocco, Philippines, Somalia, Italy, Tanzania, India, Sudan, Brazil
  5. Library Resource
    Journal Articles & Books
    May, 1991
    Asia, Bangladesh

    Over millions of years, nature has built up an intricate system of relationship of exchange and mutual dependence among its elements - land, water, air, forest, sunlight and living things - to create what we call the ecosystem. It is the life support system of all living things on this planet and provides not oniy the daily needs but also saves resources for future generations. But this very life support system is endangered by man's aggression against nature. In the last few decades, the aggression has reached unprecedented levels.

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