A Study of the Ecology of Acacia mellifera, A. seyal and Balanites aegyptiaca in Relation to Land-Clearing

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Abstract
Land clearing for Irrigated agriculture in the Sudan clay plains is urgently needed. Two different vegetation communities are present in the areas to be developed Acacia mellifera bushland and associated short grassland in a drier, more northerly zone, and A. seyal-Balanltes aegyptiaca tall grass woodland in the wetter southerly zone. Different problems arise in the clearing of the 3 species; fire tolerance, depth and type of rooting, and suitability for ringbarking, chemical poisoning, mechanical raking, uprooting and chain-felling, are different in each case. Various methods were tried to determine the most economical method of clearing the 3 species. The fewer the seasons available for land clearing in the woodland community, the less fire and other processes of decay can help in reducing costs. This does not necessarily apply to the bushland.

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