Staff Individual List

First Name:    Alemayehu Regassa
Academic Rank:    PhD Scholar, Assistant Professor
College/Institute:    College Agriculture and Veterinary Medicine
Department/Team:    Department of Natural Resources Management
Field of Specialization:    Soil Science
Research Interest:    Soil Genesis, Soil Survey, and Land Evaluation
List of Publications:   
1.    Mathijs Dumon, Alemayehu Regassa Tolossa,  Boris Capon, Christophe Detavernier, Eric Van Ranst, 2014. Quantitative clay mineralogy of a Vertic Planosol in southwestern Ethiopia. Geoderma 214–215 (2014) 184–196.

2.    Cornelis, J.T.,  M. Dumon, Tolossa, A.R. , Delvaux, B., Deckers, J., Van Ranst, E.  2014. The effect of pedological conditions on the sources and sinks of silicon in the Vertic Planosols in south-western Ethiopia. Catena 112 (2014) 131–138.

3.    Abebayehu Aticho, Misginaw Tamirat, Abraham Bantirgu, Solomon Tulu, Alemayehu Regassa and Bayu Dume, 2014.  Influences of mineral nitrogen and phosphorous fertilization on yield and yield contributing components in hot pepper (Capsicum annuum L.).  African Journal of Agricultural Research. Vol. 9(7),670-675.
4.    Alemayehu Regassa, Van Deale K., De Papua P., Dumon M., Dickers J., Asfawossen Asrat, Van Ranst E., 2014. Characterizing weathering intensity and trends of geological materials in the Gilgel Gibe catchment, southwestern Ethiopia. Submitted to Journal of African Earth Sciences (under review).

5.    Mertensa,K., Tolossaa, A.R., Verdoodt, A.,  Dumon, M.J., Deckers, Van Ranst, E., 2014. Impact of traditional soil burning (guie) on properties and reclamation of Planosols in southwestern Ethiopia. Submitted to the Journal of Soil Use and Management (under review). a equal contribution of both Authors.
6.    Van Ranst, E., Dumon, M., Tolossa, A.R., Cornelis, J.,  Stoops, T. G., Vandenberghe, R.E., Deckers, J.. 2011. Revisiting ferrolysis processes in the formation of Planosols for rationalizing the soils with stagnic properties in WRB. Geoderma 163 (2011) 265–274.

Papers presented on International conferences

1.    Alemayehu Regassa, Van Deale K., De Papua P., Dumon M., Dickers J., Asfawossen Asrat, Van Ranst E., 2013. Characterization of geological materials in the Gilgel Gibe catchment, South‐western Ethiopia: importance for and impact on studies on soil materials and soil genesis. Paper presented on 24th colloquium of African Geology (CAG 24). 8-14 January, 2013, Addis Ababa, Ethiopia.
2.    Alemayehu Regassa Tolossa, 2011. Formation and Characteristics of Nitisols in South West Ethiopia. Paper presented on IAG/AIG regional conference. Theme: geomorphology for human adaptation to changing tropical environments. Febrruary 18-22, 2011, Addis Ababa, Ethiopia.

3.    Cornelis, J.-T., M. Dumon, A.R. Tolossa, B. Delvaux1, J. Deckers4, E. Van Ranst,2011. The genesis of an Ethiopian Vertic Planosol elucidated by the study of silicon dynamics in the topsoil. In: Proceedings of the IUSS Commission on Soil Geography 2011 held in Hohenheim, Germany. July 28th – August 01th, 2011
4.    Eric Van Ranst, Alemayehu Regassa Tolossa, Mathijs Dumon, Jean-Thomas Cornelis, Jozef Deckers, 2010.  On the origin of Planosols – the process of ferrolysis revisited. Paper presented on the 19th World Congress of Soil Science, Soil Solutions for a Changing World. 1 – 6 August 2010, Brisbane, Australia. Published on DVD.

Contact address
P. O. Box:    307, Jimma
Office Tel.:    +251 471 110102
Cell Phone:    +251 920 109733
Fax:    +251 471 110934
E-mail Address: