Professor - Environmental stresses and plant physiology productivity and ecology

Mailing Address:

US EPA
200 SW 35th St.
Corvallis, OR 97333

Office: US-EPA
Phone: 541-754-4397
E-Mail:

Vita: Short

Selected Projects:

1. Ecological effects of herbicides.
2. Effects of interacting environmental stresses (ozone, CO2) on terestrial ecosystems.
3. Interaction of CO2 and climate change on Douglas-fir (past).
4. Effects of CO2 and climate change on rice ecosystems (past).

Selected Publications:

• Olszyk, D.M., M. G. Johnson, D. L. Phillips, R. J. Seidler, D. T. Tingey, and L. S. Watrud. 2001. Interactive effects of CO(subscript: 2) and O (subscript: 3) on a ponderosa pine plant/litter/soil mesocosm. Environ. Pollut.n 115:447-462.
• Hobbie, E.A, D.M. Olszyk, P.T. Rygiewicz, D.T. Tingey and M.G. Johnson. 2001. Foliar nitrogen concentrations and natural abundance of (superscript: 15)N suggest nitrogen allocation patterns of Douglas-fir and mycorrhizal fungi during development in elevated carbon dioxide concentration and temperature. Tree Physiol. 21:1113-1122.
• Lewis, J.D., M. Lucash, D. Olszyk, and D.T. Tingey. 2001. Seasonal patterns of photosynthesis in Douglas-fir seedlings during the third and fourth year of exposure to elevated carbon dioxide and temperature. Plant Cell Environ. 24:539-548.
• Apple, M.E., D.M. Olszyk, D.P Ormrod, J. Lewis, D. Southworth, and D.T. Tingey. 2000. Morphology and stomatal function of Douglas fir needles exposed to climate change: elevated CO(subscript: 2) and temperature. Internat. J. Plant Sci. 16(1):127-132.
• Olszyk, D.M., H.G.S. Centano, L.H. Ziska, J.S.Kern, and R.B. Matthews. 1999. Global Change, Rice Productivity and Methane Emissions: Comparison of Predicted and Experimental Results. Agric. For. Meteor. 9:87-101.
• Lewis, J.D., D. Olszyk, and D.T Tingey. 1999. Seasonal patterns of photosynthetic light response in Douglas-fir seedlings subjected to elevated atmospheric CO (subscript: 2) and temperature. Tree Physiol. 19:243-252.
• Weerakoon, W.M., D.M. Olszyk, and D.N. Moss. 1999. Effects of nitrogen nutrition on responses of rice seedlings to carbon dioxide. Agric. Ecos. Environ. 72:1-8.
• Moya, T., O.S. Namuco, L.H. Ziska, and D. Olszyk. 1998. Growth dynamics and genotypic variation in tropical, field-grown paddy rice (Oryza sativa L.) with increasing carbon dioxide and temperature. Global Change Biol. 4:645-656.
• Ziska, L.H., T. Moya, P. Wassmann, O.S. Namuco, R.S. Lanin, J.B. Aduna, K.R. Bronson, H.U. Neue, and D.M. Olszyk. 1998. Long-term growth at elevated carbon dioxide stimulates methane emission in tropical paddy rice. Global Change Biol. 4:657-665.
• Olszyk, D.M. and C.W. Wise. 1997. Interactive effects of elevated CO (subscript: 2) and O (subscript: 3) on rice and flacca tomato. Agric. Ecos. Environ. 66:1-10.
• Dai, Q., S. Peng, A.Q. Chavez, Ma. L. Miranda, B.S. Vergara, and D.M. Olszyk. 1997. Supplemental Ultraviolet-B radiation does not reduce growth or grain yield in rice. Results from a 7-season field study. Agron. J. 89:793-799.
• Allen, L.H. Jr., M.B. Kirkham, D.M. Olszyk, and C.E. Whitman (eds.) 1997. Recent Advances in CO (subscript: 2)Effects Research. ASA Special Publication Number 61. American Society of Agronomy, Madison, Wisconsin