RT Journal Article SR Electronic T1 Effectiveness of jatropha barriers as a soil and water conservation technology to rehabilitate gullies in northern Ethiopia JF Journal of Soil and Water Conservation FD Soil and Water Conservation Society SP 33A OP 38A DO 10.2489/jswc.70.2.33A VO 70 IS 2 A1 Ehrensperger, Albrecht A1 Bach, Simon A1 Liniger, Hanspeter A1 Portner, Brigitte A1 Ayele, Habtamu YR 2015 UL http://www.jswconline.org/content/70/2/33A.abstract AB