ធនធាន ដាក់ស្លាក: Africa Sahel
4 items found (Showing 1 - 4)
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19 មករា 1983 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...
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A paleoenvironmental review and historical analysis were employed to assess the nature of environmental change in the Sahel.
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01 មករា 1985 This book documents the 1984 drought and famine in Ethiopia.
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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.