Manuel Casanova obtained a degree in Agricultural Engineering (1991) at the University of Chile. He received his post-graduate education at the Department of Soil and Environment, Swedish University of Agricultural Sciences (SLU), Sweden, where he obtained a Master of Science degree majoring in Soil Conservation (1998). Nowadays, he is Associate Professor and head of the Department of Soil and Engineering, Faculty of Agronomic Sciences, University of Chile, where he teaches and conducts research, mainly into soil and water conservation. Oscar Seguel obtained a degree in Agricultural Engineering (1997) at the  University of Chile. He received his post-graduate education at the Institute of Agrarian Engineering and Soil, Austral University, Chile, where he obtained a PhD degree in the subject of Soil Sciences (2005). Nowadays, he is Assistant Professor at the Department of Soil and Engineering, University of Chile, Faculty of Agronomic Sciences, where he teaches and conducts research, mainly into soil physics. Osvaldo Salazar obtained a degree in Agricultural Engineering (2004) at the University of Chile. He received his post-graduate education at the Department of Soil and Environment, Swedish University of Agricultural Sciences (SLU), Sweden, where he obtained a Master of Science degree majoring in Soil Sciences (2003) and a PhD degree in Soil Science specialising in hydrotechnics (2009). He held a post-doc position at the Basic Science and Environment Department, University of Copenhagen, Denmark (2010). Nowadays, he is Assistant Professor at the Department of Soil and Engineering, Faculty of Agronomic Sciences, University of Chile, where he teaches and conducts research, mainly into soil fertility. Walter Luzio obtained a degree in Agricultural Engineering (1963) at the University of Chile. He received his post-graduate education at the University of Ghent, Belgium, where he obtained a Master of Science degree majoring in SoilSurveys (1971). He was Professor at the Department of Soil and Engineering, University of Chile, until his retirement in 2010. He taught and conducted research into pedology, soil classification and soil cartography for the past 40 years.