Edaphic, structural and physiological contrasts across Amazon Basin forest-savanna ecotones suggest a role for potassium as key modulator of tropical woody vegetation structure and function - Lloyd, J.; Domingues, Tomas Ferreira; Schrodt, F.; Yshida, F. Y.; Feldpausch, Ted R; Saiz, G.; Quesada, C. A.; Schwarz, M.; Torello-Raventos, M.; Gilpin, M.; Marimon Junior, Ben-Hur; Ratter, J. A.; et al. (Biogeosciences, 2015)