1. Soil Physics and Land Management GroupWageningen University (WUR) 6700 AA Wageningen The Netherlands
2. Instituto Nacional de Investigação e Desenvolvimento Agrário (INIDA) CP 84 Praia Cabo Verde
3. School of GeographyUniversity of Leeds Leeds LS2 9JT UK
4. Sustainability Research Institute, School of Earth and EnvironmentUniversity of Leeds Leeds LS2 JT UK
5. INRESUniversity of Bonn Bonn Germany