- Ph.D., Department of Environment, Duke University, May, 1996. Dissertation: Soil acidification, soil potassium availability and biogeochemistry of aluminum and silicon in a 34 year-old loblolly pine (Pinus taeda L.) ecosystem in the Calhoun Experimental F
- M.E.M., School of Forestry and Environmental Studies, Duke University, 1991. Thesis: Patterns in snowpack, soil solution, and streamwater chemical concentrations in an alpine-subalpine ecosystem, Fraser Experimental Forest, CO.
- B.S., School of Natural Resources, University of Michigan, Ann Arbor, 1986.
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My scientific interests are directed at quantifying how nutrient and hydrologic cycles control the chemistry of forest soils, drainage waters, and forest productivity. My research focuses on the management of the soil resource in an effort to maximize forest growth and to maintain ecosystem quality. At the stand level this includes questions of fertilizer use efficiency, soil nutrient supplies, and long-term soil quality. At the landscape level this includes the effects of land management and land use change on soil and stream water chemistry, and watershed integrity. My current research includes:
1. Critical Zone Science at the Calhoun CZO
2. Soil Health Metrics in Forest Soils
3. Carbon balance of bioenergy production in southern pines.
4. Land use change and agroforestry systems in the Brazilian Amazon: Impacts on biogeochemical cycles.
FANR 3200 Ecology of Natural Resources (ever spring),
FYOS 1001 Carbon Footprints in the Forest (ever fall),
FORS 8850 Biogeochemsitry (ever other spring),
FORS 4080/6080 Longleaf: Ecology, Management, & Restoration (every maymester),
FORS 4000/6000 Forest Soils Management (varies)
All these courses combine basic and applied knowledge of terrestrial (mostly forest) ecosystems and all have some field/laboratory components.
I am presently on the Board of the Soil Science Society of America as a representative for Soil and Ecosystem Processes.
I am also an associate editor for the AGU journal Global Biogeochemical Cycles.