Vegetation dynamic aassessment in three land use types system White Nile state, Sudan

Recognized survey within a vast area of the semi arid zone conducted to identify the vegetation covers that inhabitant according to the soil and land use. From the survey, three types of plant communities were recognized and observed in a repeated manner all over the area in different dimension. The three sites identified were tree cover that extends along khores and low lands, the scatter trees; trees outside forests including open grazing land and the agricultural land. The main objective of the study is to identify the vegetation dynamics across three types of land use system and compare tree species composition above ground with soil seed bank of the communities developing on that site. The sampling area is one hectare in each site; then all trees counted and measured for frequency, abundance and dominance and soil seed banks .The study revealed that the type of land use is the main factors dictating the forest structure, plant cover could used as an indication to identify forest sites and communities. Ground cover and the seed bank showed an idea about the species persistency; species of high persistency may use as moderate seed rate.

Author(s): Fatima G. Hassan, Abass M. Elhag and Mohammed S. Dafalla

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