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Aspects of Vegetation Resilience and Change in Relation to Major Environmental Disturbances in the Semi-Arid Parts of Kordofan Region-Sudan

Yousif A. El-Mahi-1990-01-01-Durham e-Theses (Durham University)
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TL;DRAbstract

The aim of this study has been to investigate the different responses of vegetation to the major environmental disturbances and discontinuities in Kordofan region of the Sudan. Data used have been obtained from fieldwork survey, aerial photographs and a landsat image in combination with existing maps and statistics on vegetation, climate, agriculture and population. Results obtained have shown that most plant species are neither randomly distributed nor indications of the postulated regularity of distribution were detected. Such a distributional pattern was explained through the pattern of surface properties. These have included rainfall, soil characteristics, micro-topography and the type of vegetation itself. The different types of vegetation identified were shown to reflect various succession stages following either excessive cultivation, grazing or both. Climatically conditioned natural vegetation is virtually absent as the effect is almost entirely masked by man's activities. Evid

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The aim of this study has been to investigate the different responses of vegetation to the major environmental disturbances and discontinuities in Kordofan region of the Sudan. Data used have been obtained from fieldwork survey, aerial photographs and a landsat image in combination with existing maps and statistics on vegetation, climate, agriculture and population. Results obtained have shown that most plant species are neither randomly distributed nor indications of the postulated regularity of distribution were detected. Such a distributional pattern was explained through the pattern of surface properties. These have included rainfall, soil characteristics, micro-topography and the type of vegetation itself. The different types of vegetation identified were shown to reflect various succession stages following either excessive cultivation, grazing or both. Climatically conditioned natural vegetation is virtually absent as the effect is almost entirely masked by man's activities. Evid

Keywords

Vegetation (pathology)WoodlandGrazing pressureShrublandGeographyGrazingGrasslandEcological succession

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