Estimation of Browse Productivity for Acacia seyal (Delile) in Alazzazah Area, Blue Nile State, Sudan

Journal of Rangeland Science

مقاله 5، دوره 7، شماره 4، دی 2017، صفحه 341-347   

نوع مقاله: Research and Full Length Article

نویسندگان

Nancy Ibrahim Abdalla¹؛ Mohammed Ibrahim Abdelsalam¹؛ Mohammed Abdelkreim¹؛ Abdalbasit Adam Mariod^{* 2}

¹Department of Range Science, College of Forestry and Range Science, Sudan University of Science and Technology, Khartoum, Sudan

²Department of Food Science and Technology, College of Agricultural Studies, Sudan University of Science and Technology, Shambat, Khartoum North, Sudan

چکیده

Fodder trees and shrubs are crucial sources of animal feed in Sudan, particularly in arid and semi-arid areas. This is because they can fill up the feed gaps in the summer period when grassland growth is limited due to unfavorable weather conditions. The study was conducted in Elnour forest-southeastern Sudan in 2015, which is dominated by Acacia seyal. The objectives of this study were to estimate the browse productivity, and to establish relationships with the crown area for Acacia seyal. The twig-count method described in this study converts a count of twigs to weight of browse by use of an average weight per twig for individual trees. Regression analysis was used to establish relationships between browse biomass and crown area. The average available browse (8.1 kg/ha) and tree density (162 tree/ha) for Acacia seyal was low in the study area that makes the density as the main factor that determine the amount of available browse/ha. Strong positive correlations were found between browse biomass productivity (available and total browse) and crown area with average values of 0.86 and 0.90, respectively. The study concluded that crown area as the main parameters used for predicting the browse biomass productivity. It is recommended that more effort be made to expand the use of more species to investigate the relationships between browse biomass productivity and growth parameters.

کلیدواژه‌ها

Browse production؛ Acacia seyal؛ Tree density؛ Blue Nile State؛ Sudan

مراجع

Abdalla, M. S. A., Babiker, I. A., Idris, A. M. and Elkalifa. K. F., 2014. Potential Nutrient Composition of Acacia seyal Fruits as Fodder for Livestock in the Drylands in Sudan. Development in Analytical Chemistry.

Abdalla, N. I., Fashir, G. A., Salih, E. M., Lazim, A. M., Abdelsalam, M. I. and Mohammed, M. M., 2015. Estimation of Browse Biomass Productivity for Acacia mellifera (vah) Benth. In Tendalti Area of White Nile, Sudan. Natural Resources, Agricultural Development and Food Security. International Research Network (NAF-IRN). International Working Paper Series.

Chibinga, O. C., Musimba, N. R. K., Nyangito, M. M., Simbaya, J., Daura, M. T., 2012. Climate variability; enhancing adaptive utilization of browse trees for improved livestock production among agro-pastoralists communities in Southern Zambia. African Jour. Environmental Science and Technology, 6(7): 267-274.

Chriyaa, A., 2009. The Use of Shrubs in Livestock Feeding in Low Rainfall Areas. Land Use, Land Cover and Soil Sciences –Vol. 5. EOLSS, Oxford, UK.

Cottam, G. and Curtis, J.T., 1965. The use of distance measures in phytosociological sampling. Ecology. 37: 451-456.

Gaiballa, A. K., Lazim, A. M. and Mustafa, H. F., 2003. Estimation of available browse for Acacia tortilis and Acacia mellifera in Butana area of Central Sudan. Sudan Silva, 9: 46 – 54.

Hassan, M. A. Xiaoli, Z. and Abdalla, N. I., 2015. Browsing Characteristics of Acacia Seyal Del Variety Seyal in Low Rainfall Savanna Zone of Sudan. ARPN Jour. Science and Technology. 5(8): 393-397.

Kramala, G. A. and Elneim, B., 2003. Study of selected villages in Blue Nile state. Practical Action Organization in Sudan.

Lazim, A. M. and Dawelbait, M. D., 2014. Estimation of Browse Biomass Productivity for Balanites aegyptiaca (L) Del.) in dry lands of North Kordofan, Sudan. Sudan Jour. Desertification Research, 6(1): 58-66.

Lefroy, E. C., Dann, P. R., Wildin, J. H., Wesley–Smith, R. N. and Mcgowan, A. A., 1992. Trees and shrubs as source of fodder in Australia. Kluwer academic publisher. Netherlands.

Le Houérou, H.N.,1980. Browse in Northern Africa. In: Le Houérou, H.N. (ed.), Browse in Africa. ILCA, Addis Ababa, Ethiopia, pp. 55-82.

Michael, G., Burk, J. and Pitts, W., 1987. Terrestrial Plant Ecology. The Benjamin/ Cummings Publishing Company, Inc.

Orwa, C., Mutua, A., Kindt, R., Jamnadass, R., Anthony, S., 2009. Agroforestry Database: a Tree Reference and Selection Guide. Version 4.0. World Agroforestry Centre, Kenya.

Sanon, H. O., Nianogo, J. A., Nanglem, N. S. and Sanou, S., 2005. Amount of fallen fodder components from Acacia raddiana, Balanites aegyptiaca and Ziziphus mauritiana available to ruminants in selected Sahelian pastures. Livestock Research for Rural Development, 17(12).