Assessing Rangeland Attributes On Semi-Arid Zone Of North Darfur State, Sudan
Mohamed Almontasir A. M. Mohamed, Abdelhafeez A. M. Yeddi, Mohammed Abdelkreim
Keywords: Vegetation cover, Plant density, Range production carrying capacity, Rangeland.
Abstract: The study was conducted over a two years period of 2012 and 2013 at three sites of Alfashir locality (Ummarahik 25km north of Alfashir, Fashar in eastern part of Alfashir about 5km and Berka 30km west of Alfashir), Western Sudan in semi-arid zone. The aim of this study was to assess rangeland attributes. Measurements of plant density, vegetation cover, range production and carrying capacity were assessed. Results showed that total forage production was low and inadequate to satisfy requirements of livestock for inhabiting the area, average range production all over the area was found to be 50.68 kg/ha and 59.21 kg/ha for the seasons 2012 and 2013 respectively. The average ground cover was about 34.71% and 42.41% for two seasons. The average plant density for the first season was 27.1 plant/m2, while the average plant density for the second season was 29.4 plant/m2. The study concluded that unwise utilization and exploitation of the rangelands particularly by man causes range deterioration and serious reduction in range production in both quantity and quality, so, the study suggested that improvement and rehabilitation such lands rangelands should be done. Further research work is needed to assess rangeland attributes across different ecological zones in North Darfur State.
 Adam, A. I. (2013). Study on Impact of Darfur Armed Conflict on Vegetation cover, Case study: Umkaddada Locality, North Darfur State –Sudan, PhD thesis, Sudan University of Science & Technology, College of Graduate Studies.
 Ayoub, A. T. (1998). Extent severity and causative factors of land degradation in the Sudan. Journal of Arid Environments 38:397-409
 Branson, F.A., Gifford, G.F., Renard, K.G., and Hadley, R.F., (1981). In: E.H. Reid (Ed.), Rangeland Hydrology, 2nd Edition. Society of Range Management. Kendull/Hund Publ. Com. Iowa.
 Bunderson, W.T., Cook, R.H. and Fadlala,B. (1984). Range and livestock research activities. Western Sudan Agricultural Research Project (WSARP). Publication No. 29.
 Cayrol, P., Chehbouni, A. , Kergoat, L. , Dedieu, G. , Mordelet, P. and Nouvellon, Y. (2000). Grassland modeling and monitoring with SPOT-4 VEGETATION instrument during the 1997–1999 SALSA experiment. Agricultural and Forest Meteorology 105 :91–115.
 Connolly, R.D., Ciesiolka, C.A.A., Silburn, D.M., and Carroll, C. (1997). Distributed parameter hydrology model (Answers) applied to a range of catchment scales using rainfall simulator data. IV Evaluating pasture catchment hydrology. Journal of Hydrology 201: 311-328.
 Darrag. A.A. (1996). Senior staff training lectures. Community Based Rehabilitation Project. Gerigekh Rural Council. Bara province North.
 De Leeuw , P. N. and Tothill, J. C. (1990). The concept of rangeland carrying capacity in sub-saharan Africa- muth or reality. Pasroral Deelopment Network (PDN) paper 29b, overseas Development Institute (ODI), London.
 Gobha, A. M., (1991). Water courses utilization as measure to reduce desertification hazard: case study Khor Abu Habil (Umm Rawaba District, North Kordofan). MSc Thesis, University of Khartoum.
 Grainger, A. (1990). The threatening desert: controlling desertification, Earth scan Publications, London
 Heady, H. F. and Child, D. (1994). Rangeland Ecology and Management. West view Press, San Francisco, CA.
 Loeser, M. R. R., Sisk, T. D. and Crews, T. E. (2007). Impact of Grazing Intensity during Drought in an Arizona Grassland. Conservation Biology. l21(1): 87 -97.
 Nasra, (2008). Spatial Heterogeneity and Range Management in Semi-arid Areas. PhD thesis, Sudan Academy of Sciences (SAS).
 Oztas, T., Kocb, A., and Comakli, B. (2003). Changes in vegetation and soil properties along a slope on overgrazed and eroded rangelands Journal of Arid Environments 55: 93–100
 Peter, S. H. (2000). Grassland Resources Assessment for Pastoral System. (FAO Plant production and Protection Paper), ISBN92-5-104537-2.
 Qi, J. (2002). Improved Rangeland Information Products from Satellites. Center for Global Change and Earth Observations (CGCEO). Michigan State University, East Lansing, Michigan.
 Suliman. M. M. (1985). Base line survey for Kordofan and Darfur Tilman, D. and Downing, J.A. (1994). Biodiversity and stability in grasslands. Nature 367:363-367.
 Whittaker, R.H. (1975). Communities and ecosystems, 2nd edition. Macmillan, New York.
 Yousif, Z. A. (2005). Monitoring and Assessment of the impact of land degradation on grazing Resources using remotely sensed data, Um Kaddada province, North Darfur State, Sudan. PhD thesis, College of Natural Resources and Environmental Studies, University of Juba, Sudan.