Impact of conservation practices on runoff and soil loss in the sub-humid Ethiopian Highlands: The Debre Mawi watershed - Dagnew, Dessalegn C.; Guzman, Christian D.; Zegeye, Assefa D.; Tibebu, Tigist Y.; Getaneh, Menelik; Abate, Solomon; Zemale, Fasikaw A.; Ayana, Essayas K.; Tilahun, Seifu A.; Steenhuis, Tammo S.