Analysing environmental change in semi-arid areas in Kordofan, Sudan

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This study tries to explain the observed NDVI changes on a local and regional scale in semi-arid Kordofan, Sudan by studying different processes and comparing areas with a positive trend in NDVI with areas with a neutral trend in NDVI. A field work, including vegetation estimations and interviews, was done in 2004 and these data was complemented with high resolution Landsat data and precipitation data. Examined processes are vegetation changes, precipitation patterns, land use changes, population changes and changes in the amount of livestock. A land use classification was made from the Landsat data. The land use change analyses and the interview results show that increased cropping area may lead to increased NDVI. The population analysis shows that the population has increased both in areas ...