Soil and plant responses to pyrogenic organic matter: carbon stability and symbiotic patterns. Edvaldo Sagrilo. (defended on December 9th, 2014).
People, soil and manioc interactions in the upper Amazon region. Clara Peña Venegas. (defended on July 1st, 2015).
Legacies of Amazonian Dark Earths on forest composition, structure and dynamics. Estela Quintero Vallejo (defended on July 1st, 2015).
Challenging the claims on the potential of biochar to mitigate climate change. Tatiana Francischinelli Rittl (defended on July 1st, 2015).
Anthropogenic soils in central Amazonia: farmers' practices, agrobiodiversity and land-use patterns. André Braga Junqueira (defended on September 30th, 2015).