An Official Interna S Cop Identification of Groundw Method at Fincha’a Sug Getahun Kitila 1* , Geremew 1 College of Natural and Computationa 2 School of Natural Resource Ma Pos Ab Good water management and improve caused by waterlogging and thus increa severe problem in some of the irrigated fi Basin of western Ethiopia. As a resu abandoned. A measurement of geoelect by using Schlumberger array with the s found to be 2 m. The positions of centre were at different points along the traverse study was to identify the depth of the g subsurface lithology. The shallow ground 3.18 and 2.49 m with resistivity values of (VES 2), (VES 3) and (VES 4) respe confined on the course range from the de of 3.96 to 11.6 Ω-m.The variation of res water shows the variation of variation of c It was identified that the selected irri waterlogged conditions. Deeper regolith below the water table, due to low salinities INTRODUCTION Irrigation alters the surface water ba not used for plant growth or lost to drains below the root zone (Jenny e There is some evidence, from bore m rises in groundwater level in shallowe the alluvium (DERM groundwater dat due to recharge from deep draina 2008), but many shallower bores have many years. Diffuse recharge (i.e. thro in the alluvium is considered to be sm aquifers mainly recharged by ri (Gunawardena et al., 2008). Thus disparity deep drainage below the root to be high but recharge from this sour to be low. This would be explained, in drainage was being stored in an unsa left dry by the previous native vegetatio ational Journal of Wollega University, Ethiopia. ISSN: 2226-7522(Print) and 2305-3 Science, Technology and Arts Resea July-Sep 2013, 2 www.sta pyright@2013 STAR Journal. All Righ water Level by Using Geoelectrical gar Estate, Blue Nile Basin, Western w Lemessa 1 , Heluf Gebrekidan 2 and Tena Ala al Sciences, Wollega University, Post Box No: 395, N anagement and Environmental Science, Haramaya st Box No: 138, Dire Dawa, Ethiopia bstract Artic ed drainage can minimize yield reductions ase profitability. Waterlogging became a very ields of Fincha’a Sugar Estate in the Blue Nile ult many productive agricultural lands were trical resistivity at the selected irrigated fields space of potential and current electrode was e sounding measurements to be investigated e line (subsurface area). The objective of this groundwater table in relation to aquifers and water was identified at the depth of 1.5, 2.06, f 3.76, 5.42, 49.3, and 29.4 Ω-m at (VES 1), ectively. While the deep ground water table epth of 3.96 to 11.6 m with the resistivity value sistivity values from each position of ground crack dimension and variation of medium type. igated fields are under severe to critically (3.18-20.7) m was resistive, both above and s in the groundwater and coarser textures. Article Receiv Revise Accep Keyw Waterl Ground Shallow Geoph Deep d *Corre Getahu E-mail gkitila@ alance. Water o evaporation, et al., 2010). monitoring, of er aquifers in tabase), likely age (Murphy, e been dry for ough the soil) mall, with the iver leakage s there is a t zone is seen rce is thought n part, if deep aturated zone on, creating a time lag between deep drainage an is known about the moisture capa the regolith (unsaturated zone) changed as a result of changes balance. Soil resistivity is relate content, salinity and clay (conten can be interpreted qualitatively lithology from bore logs and mea clay content. Contrasts in rego vegetation and under irrigated examined, to assess the impact changes (Jenny et al., 2010). Geophysical techniques are for the identification of groun zones and groundwater leve investigate the nature and statu Original 114 3327 (Online) arch Journal 2(3): 114-125 arjournal.org hts Reserved Resistivity n Ethiopia amirew 2 Nekemte, Ethiopia University, cle Information e History: ved : 10-05-2013 ed : 12-09-2013 pted : 18-09-2013 words: logging d water level w water table hysical survey drainage esponding Author: un Kitila l: @gmail.com nd recharge. Little acity and status of or how this has in the soil water ed to soil water nt and type). Data with the aid of asures of salt and olith under native agriculture were ts from land use the highly useful ndwater potential el studies, to us of subsurface l Research