• University of Washington, Seattle, Washington, Ph.D., 1986, Forest Soils and Mineral Cycling, College of Forest Resources, Dissertation title: "Role of N status and N transformations in the H⁺ budget, cation loss and S retention mechanisms in adjacent Douglas-fir and Red Alder forests in Western Washington." Advisor: D.W. Cole.

• University of Washington, Seattle, Washington, M.S., 1980, Forest Soils and Mineral Cycling, College of Forest Resources. Thesis title: "Effects of Urea fertilization and sawdust amendment on microbial activity and nutrient leaching in two soil systems with different nitrogen status." Advisor: D.W. Cole.
  
  
• State University of Ghent, Belgium, Agricultural Engineer, 1978, Specialty Water and Forest Resources/Silviculture, Faculty of Agricultural Sciences, Summa cum Laude. Thesis title: "Differentiation phenomena in natural regenerations of Acer pseudoplatanus L." (In Dutch).
  

Curriculum Vitae
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