Graduated in Forestry Engineering from the Federal University of Santa Maria (1989), Master's degree in Forestry Sciences from the Luiz de Queiroz School of Agriculture/USP in São Paulo (1992) and PhD in Ecology and Forest Nutrition from the Universitaet fuer Bodenkultur in Vienna, Austria ( 1995). He is currently a Full Professor at the Department of Forestry Sciences at the Federal University of Santa Maria. Undergraduate professor of the Forestry Engineering course and postgraduate professor at the Postgraduate Program in Forestry Engineering. Coordinator of the Laboratory of Forest Ecology of the Department of Forestry Sciences at UFSM. Coordinator of research projects in the areas of Ecology and Forest Nutrition. Consultant for journals Biomass and Bioenergy, Forest Ecology and Management, Forest Ecology and Nutrition, Ciência Florestal, Floresta, Ciência Florestal. Chief editor of IPEF's Scientia Florestais magazine. Current Scientific Leader of the Cooperative Program on Pinus Research in Brazil (PPPIB), with the Institute of Research and Forestry Studies (IPEF). Representative of the Forestry Research area, with the Deliberative Council of IPEF. Leader of the CNPq research group: Nutrient Cycling in Native Forests and commercial plantations. Coordinator of Division 1.02.01 - Ecology and Silviculture of Plantation Forests in the Tropics of the International Union of Forest Research Organization (IUFRO). He has experience in the area of Forestry Resources and Forestry Engineering, with an emphasis on Ecology and Forest Nutrition, working mainly on the following topics: Forest Ecology, Biomass, Forest Nutrition, Forest Soils, Eucalyptus Culture, Acacia mearnsii, Pinus, Nutrient Cycling and Sustainability.