Reubens B., Moeremans C., Poesen J., Nyssen J., Tewoldeberhan S., Franzel S., Deckers J., Orwa C., Muys B., 2011. Tree species selection for land rehabilitation in Ethiopia: from fragmented knowledge to an integrated multi-criteria decision approach. Agroforestry Systems, 82: 303-330. planted when both ecological suitability for the targeted area or preferences of local stakeholders are 6 not properly taken into account during selection. To develop a decision support tool for multi-purpose 7 species selection, first information needs to be pooled on species-specific ranges, characteristics and 8 functions for a set of potentially valuable species. In this study such database has been developed for 9 the highly degraded northern Ethiopian highlands, using a unique combination of information sources, 2