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  1. 1983-01-19 This book has been written primarily to assist practising foresters, agriculturists, livestock experts, general land use planners, etc., who work with shrubs and trees in the field. Starting with a short botanical profile, including colour photographs, the botanical abstract summarizes the...
  2. A paleoenvironmental review and historical analysis were employed to assess the nature of environmental change in the Sahel.
  3. 1985-01-01 This book documents the 1984 drought and famine in Ethiopia.
  4. Desertification examines the reaons: overcultivation, overgrazing, deforestation and bad irrigation. The rich nations, the poor nations and the internation agencies know what needs to be done to stop cropland and pastures turning to desert.