Publications
1. Sheleme Beyene and Alemayehu Regassa, 2022. History of Soil Education and Research. In Sheleme Beyene, Alemayehu Regassa, Bipin B. Mishra, Mitiku Haile (Eds.), The Soils of Ethiopia (1rst ed., pp 35-46). World Soils Book Series. Springer Nature Switzerland AG 2023
2. Bekele Abebe, Dereje Ayalew, Alemayehu Regassa and Gebeyehu Taye, 2022. Geology and Geomorphology. In Sheleme Beyene, Alemayehu Regassa, Bipin B. Mishra, Mitiku Haile (Eds.), The Soils of Ethiopia (1rst ed., pp 88-117). World Soils Book Series. Springer Nature Switzerland AG 2023. In press.
3. Bekele Abebe, Dereje Ayalew, Alemayehu Regassa and Gebeyehu Taye, 2022. Geology and Geomorphology. In Sheleme Beyene, Alemayehu Regassa, Bipin B. Mishra, Mitiku Haile (Eds.), The Soils of Ethiopia (1rst ed., pp 88-117). World Soils Book Series. Springer Nature Switzerland AG 2023. In press.
4. Alemayehu Regassa, Ashenafi Ali, Gebeyehu Taye, 2022. Soil Classification. In Sheleme Beyene, Alemayehu Regassa, Bipin B. Mishra, Mitiku Haile (Eds.), The Soils of Ethiopia (1rst ed., pp 118-126). World Soils Book Series. Springer Nature Switzerland AG 2023. In press.
5. Alemayehu Regassa, Mohammed Assen, Ashenafi Ali, and Berhan Gessesse, 2022. Major Soil Types. In Sheleme Beyene, Alemayehu Regassa, Bipin B. Mishra, Mitiku Haile (Eds.), The Soils of Ethiopia (1rst ed., pp 127-187). World Soils Book Series. Springer Nature Switzerland AG 2023. In press.
6. Alemayehu Regassa, Kibebew Kibret, Yihenew G.Selassie, Alemayehu Kiflu, and Wondwosen Tena, 2022. Soil Properties. In Sheleme Beyene, Alemayehu Regassa, Bipin B. Mishra, Mitiku Haile (Eds.), The Soils of Ethiopia (1rst ed., pp 188-251). World Soils Book Series. Springer Nature Switzerland AG 2023. In press.
7. Berhan Gessesse, Ashenafi Ali and Alemayehu Regassa, 2022. Land Evaluation and Land Use Planning. In Sheleme Beyene, Alemayehu Regassa, Bipin B. Mishra, Mitiku Haile (Eds.), The Soils of Ethiopia (1rst ed., pp 362-387). World Soils Book Series. Springer Nature Switzerland AG 2023. In press.
8. Bipin B Mishra, Alemayehu Regassa, Endalkachew Fekadu 2022. Land Evaluation and Land Use Planning. In Sheleme Beyene, Alemayehu Regassa, Bipin B. Mishra, Mitiku Haile (Eds.), The Soils of Ethiopia (1rst ed., pp 388-421). World Soils Book Series. Springer Nature Switzerland AG 2023. In press.
9. Getachew Beyene, Nigussie Dechassa, Alemayehu Regasa, and Lemma Wogi, 2022. Land Suitability Assessment for Apple (Malus domestica) Production in Sentele Watershed in Hadiya Zone, Southern Ethiopia. Applied and Environmental Soil Science, Volume 2022, Article ID 4436417, 13 pages https://doi.org/10.1155/2022/4436417.
10. Tolossa Ameyu Bedassa, Abush Tesfaye Abebe, and Alemayehu Regassa Tolossa, 2022. Tolerance to soil acidity of soybean (Glycine max L.) genotypes under field conditions Southwestern Ethiopia. PLOS ONE. In press.
11. Fedhasa Benti Chalchissa, Girma Mamo Diga , Gudina Legese Feyisa, Alemayehu Regassa Tolossa, 2022. Impacts of extreme agroclimatic indicators on the performance of coffee (Coffea arabica L.) aboveground biomass in Jimma Zone, Ethiopia. Heliyon 8 (2022) e10136
12. Fedhasa Benti, Girma Mamo Diga, Gudina Legessie Feyisa, Alemayehu Regassa Tolossa, 2022. . Modeling coffee (Coffea arabica L.) climate suitability under current and future scenario in Jimma zone, Ethiopia, Environ Monit Assess (2022) 194:271.
13. Chalclchissa, F.B., Diga, G.M., Tolossa, A.R., 2022. Modeling of the responses of Coffee (Coffea arabica L.) distribution to current and future climate change in Jimma Zone, Ethiopia. Sains Tanah Journal of Soil Science and Agroclimatology, 19(1): 19-32.
14. Temesgen Addise , Bobe Bedadi, Alemayehu Regassa, Lemma Wogi,and Samuel Feyissa, 2022. Spatial Variability of Soil Organic Carbon Stock in Gurje Subwatershed, Hadiya Zone, Southern Ethiopia. Hindawi, Applied and Environmental Soil Science. Vol. 2022.
15. Teka Bekuma Abdisa, Girma Mamo Diga & Alemayehu Regassa Tolossa, 2022. Impact of climate variability on rain-fed maize and sorghum yield among smallholder farmers, Cogent Food & Agriculture, 8:1, 2057656, DOI: 10.1080/23311932.2022.2057656.
16. Teka Bekuma1, Girma Mamo and Alemayehu Regassa, 2022. Variability and trends of climate in east Wollega zone, Western Ethiopia. IOP Conf. Ser.: Earth Environ. Sci. 1016 012032.
17. Teka Bekuma, Girma Mamo, Alemayehu Regassa, 2022. Modeling and forecasting of rainfall and temperature time series in East Wollega Zone, Western Ethiopia. Arabian Journal of Geosciences (2022) 15:1377. https://doi.org/10.1007/s12517-022-10638-w.
18. Teka Bekuma, Girma Mamo, Alemayehu Regassa, 2022. Trend and temporal variation of droughts in East Wollega Zone, Western Ethiopia. Natural Hazards. https://doi.org/10.1007/s11069-022-05560-z.
19. Sintayehu Legesse Gebre, Ashenafi Woldeyohannes, Kefelegn Getahun & Alemayehu Regassa, 2021. Determinants of the spatial distribution of enset (Ensete ventricosum Welw. Cheesman) wilt disease: Evidence from Yem special district, Southern Ethiopia, Cogent Food & Agriculture, 7:1, 1889789, DOI: 10.1080/23311932.2021.1889789.
20. Sintayehu Legesse Gebre, Nasreddin Temam & Alemayehu Regassa, 2020. Spatial analysis and mapping of malaria risk areas using multi-criteria decision making in Didessa District, South West Ethiopia, Cogent Environmental Science, 6:1, 1860451, DOI: 10.1080/23311843.2020.1860451.
21. Gemechu Debesa, Sintayehu Legesse Gebre, Ashenif Melese, Alemayehu Regassa & Sintayehu Teka, 2020. GIS and remote sensing-based physical land suitability analysis for major cereal crops in Dabo Hana district, South-West Ethiopia, Cogent Food & Agriculture, 6:1, 1780100, DOI: 10.1080/23311932.2020.1780100
22. Ewnetu Teshale, Taye Kufa, Alemayehu Regassa, 2021. Effects of Lime on Phosphorus Availability and Nutrient Uptake of Hybrid Coffee (Coffea arabica L.) Seedlings Under Acidic Nursery Soil. Agriculture, Forestry and Fisheries 10(1): 21-27.
23. Obsa A, Tesfaye B, Alemayehu R, 2020. Response of Maize (Zea mays L.) growth and yield components to omission of nutrients at Kersa District, Jimma zone, Southwestern Ethiopia
24. Tolessa Ameyu, Abush Tesfaye and Alemayehu Regassa, 2020. Response of Soybean Genotypes for Root, Nodulation, Growth, Yield and Yield Components to Lime and Phosphorus Application at Mettu, south western Ethiopia. Academic Research Journal of Agricultural Science and Research, Vol. 8, No., 2, 2020.
25. Bikila Takala, Taye Kufa, Alemayehu Regassa, 2020. Effects of lime and coffee husk compost on growth of coffee seedlings on acidic soil of Haru in Western Ethiopia. Journal of degraded and mining lands management. Vol.8, No., 1, 2020.
26. Ewnetu Teshale, Taye Kufa, Alemayehu Regassa, 2019. Effects of Lime and Phosphorus Rates on Growth of Hybrid Arabica Coffee Seedlings at Jimma, Southwest Ethiopia. Journal of Biology, Agriculture and Healthcare, Vol.9, No.15, 2019.
27. Mulatu Chernet, Amsalu Nebiyu, Alemayehu Regasa, 2018. Effects of Fababean and Soya Bean on Biomass Production Potentials to Increase Soil Fertility in the Humid Highlands of Ethiopia. Journal of Natural Sciences Research Vol.8, No.21, 2018.
28. Mulatu Chernet, Amsalu Nebiyu, Alemayehu Regasa, 2018. Evaluation of N and P Contribution to Improve Soil Fertility Potentials of the (Vicia faba L. and Glycine max L.) to Subsequent Cereal Crops. Vol.8, No.11, 2018.
29. Bayu Dume, Dejene Ayele, Alemayehu Regassa, Gezahegn Barecha, 2017. Improving available phosphorus in acidic soil using biochar. Journal of Soil Science and Environmental Management 8 (4): 87-94.
30. Bayu Dume, Dejene Ayele, Alemayehu Regassa, Gezahegn Berecha, 2017. Effects of Biochar on Phosphorus Sorption and Desorption in Acidic and Calcareous Soils. Civil and Environmental Research 9(5), 2017.
31. Sisay Assefa, Endalkachew Kissi, Alemayehu Regassa, 2017. Jatropha Curcas L. for Rehabilitation of Degraded Land of Gilgel Gibe Watershed, South Western Ethiopia. Journal of Biology, Agriculture and Healthcare 6(19),2017.
32. Bayu Dume, Dejene Ayele, Alemayehu Regassa, Gezahegn Barecha, 2016. Interactive Effects of Biochar in Soil Related to Feedstock and Pyrolysis Temperature. American- Eurasian J. Agric. & Environ. Sci., 16 (3): 442-448, 2016.
33. Bahilu Bezabih, Mulugeta Lemenih and Alemayehu Regassa, 2016. Farmers perception on soil fertility status of small-scale farming system in Southwestern Ethiopioa. Journal of Soil Science and Environmental Management 7(9): 143-153.
34. Mathewos Bekele, Mulugeta Lemenih, Alemayehu Regassa, 2016. The Effects of Integrated Soil Conservation Practices on Soil Physico-Chemical Properties: The Case of Menesibu District, West Ethiopia. Journal of Natural Sciences Research, Vol.6, No.23.
35. De Wispelaere, L., Marcelino, V., Alemayehu Regassa, De Grave, E., Dumon, M., Mees, F., Van Ranst, E., 2015. Revisiting nitic horizon properties of Nitisols in SW Ethiopia. Geoderma 243-244 (2015) 69-79.
36. Abdeta Jembere, Gezahegn Berecha, Alemayehu Regassa, 2015. Impacts of termites on selected soil physico-chemical characteristics in humid highlands of south-west ethiopia. Archives of Agronomy and Soil Science.Archives of Agronomy and Soil Science, 63(12): 1676-1684.
37. 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. Journal of African Earth Sciences 99 (2014) 568-580.
38. 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. Journal of Soil Use and Management 31 (2014) 330-336.a Equal contribution of both authors.
39. 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.
40. 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.
41. Bahilu Bezabih, Mulugeta lemenih, Alemayehu Regassa, 2014. Soil Fertility Status as Affected by Different Land Use Types and Topographic Positions: A Case of Delta Sub- Watershed, Southwestern Ethiopia. Journal of Biology, Agriculture and Healthcare 4, 27(2014).
42. 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.
43. 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. 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.
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. 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.
5. Alemayehu Regassa, A. Verdoodt, M. Dumon, S. Deckers, E. Van Ranst, 2013. The effects of soil burning practice 'guie' on soil properties and its impact on eucalyptus production on planosols in the Gilgel Gibe catchment, Southwest Ethiopia. Paper presented on the Soils, Land Use and Health International conference. 28 to 31 August, 2013, Lushoto, Tanzania.
6. Alemayehu Regassa, 2016. Characterization of Bench mark soils in the Gilgel Gibe Catichment. Paper presented on the Biodiversity conservation, Environment and Global warming International conference. 27-28 January, 2017, Bedele Ethiopia.
Research Interests
• Soil Genesis
• Soil Classification
• Soil mapping
• Land Evaluation
• Land Use Planning
• Soil Organic Carbon Dynamics
• Land Use Land Cover Change Analysis