Reshaping upland farming policies to support nature and livelihoods: lessons from soil erosion in Southeast Asia with emphasis on Lao PDR. [Report of the Management of Soil Erosion Consortium (MSEC) Project] - Pierret, Alain; Rouw, Anneke de; Chaplot, V.; Valentin, Christian; Noble, A.D.; Suhardiman, Diana; Drechsel, Pay (International Water Management Institute, 2011)