• Ph.D., Soil Science, Univ. of California, Riverside, CA, August, 1973
• B.S., Soil Science, Univ. of Missouri, Columbia, MO, May, 1968

• July 1, 1996 to present: University Professor, Univ. of Arkansas, Fayetteville
• July 1, 1981 to June 30, 1996: Professor, Univ. of Arkansas, Fayetteville
• January 2, 1979 to June 30, 1981: Associate Professor, Univ. of Arkansas, Fayetteville
• July 1, 1977 to December 31, 1978: Associate Professor, Univ. of Maryland, College Park
• August 23, 1973 to June 30, 1977: Assistant Professor, Univ. of Maryland, College Park

Teaching Experience

Current teaching responsibilities include

• AFLS Honors Orientation (AFLS 1011H)
• Environmental Science (ENSC 1003)
• Environmental Science Laboratory (ENSC 1001L)
• Environmental Soil Science (ENSC 4263)
• Soil Microbiology and Laboratory (CSES 5264).
• Directed research of over 27 M.S. students, 3 Ph.D. students, and 2 post-doctoral associates.

Current Service Area

• Serving as Associate Editor for Soil Science
• Director of the AFLS Honors Program

• AFLS 1011H. Honors Orientation (Fall). The course will serve as an introduction to the basic information and requirements of the AFLS Honors Program. The course is available to all students, but is required for students in the honors program. Topics covered will include: purpose and organization of the honors program, course requirements, research and creative activity opportunities, and written and oral communication exercises. Recitation 3 hours per week for the first 5 weeks of the semester. (Same as AFLS 1011)
• ENSC 1003. Environmental Science (Fall). Introduction of the basic concepts and fundamental information that will allow the student to critically evaluate environmental issues.  Topics covered will include: world population levels, energy supplies, global climate change, soil resources, water quality, pesticide use, hazardous wastes, wetlands, and biodiversity. Recitation 3 hours per week.  Prerequisite: none
• ENSC1001L. Environmental Science Laboratory (Fall). Laboratory, field trip, and discussion sessions covering the concepts and information allowing students to critically evaluate environmental issues. Topics will include: laboratory safety, recycling, composting, geographic information systems, soil testing, water quality, hazardous wastes, waste disposal, wetlands, wastewater treatment, and sustainable food systems. Laboratory 2 hours/week. Prerequisite or Corequisite: ENSC 1003.
• ENSC 4263.  Environmental Soil Science (Spring, Even Numbered Years).  Study of the behavior of pesticides, toxic organic compounds, metals, nutrients, and pathogenic microorganisms in the soil/plant/water continuum.  Lecture 3 hours per week.  (Same as ENSC 4263). Prerequisite: CSES 3214. 
• CSES 5264.  Soil Microbiology (Spring, Odd Numbered Years).  A study of the microorganisms in soil and the biochemical processes for which they are responsible.  Lecture 3 hours per week.  (Same as BIOL 5264) Corequisite: CSES 5260L. Prerequisites: BIOL 2013 and BIOL 2011L.

Current Research Projects:  Using plants to remediate petroleum-contaminated soil

• Thousands of petroleum-contaminated sites exist nationwide including oil spills, leaking storage tanks, and drilling sites.  To avoid potential ground and surface water pollution, these sites must be remediated or “cleaned-up” or financial penalties or fines could be imposed.  Current methods of removing the oil contaminants from these sites include the expensive removal of the soil and hauling to either a landfill or to an incineration facility. To reduce this expense, on-site remediation options are being evaluated.  One method of on-site clean-up is phytoremediation or the use of plants and the microorganisms associated with their root systems.
• Laboratory, greenhouse and field studies are currently being conducted to define specific plants and associated microbial communities that could effectively be used to remediate oil-contaminated soils.  The use of soil amendments such as broiler litter, fertilizer, and sawdust is also being evaluated to determine if their addition enhances remediation of contaminated soils. Evaluations are also being done to determine which soil microorganisms are found in oil-contaminated soil and how the microbial populations change over time.  In addition, the impact of resource partitioning or C/N/P ratio values on crude oil biodegradation is also being evaluated.

• American Society of Agronomy
• Soil Science Society of America
• American Society for Microbiology
• International Society of Soil Science
• American Registry of Certified Professionals in Agronomy, Crops and Soils
• Council for Agricultural Science and Technology
  

• Fellow in the American Society of Agronomy
• Fellow in the Soil Science Society of America

Total Number of Publications and Presentations

Publications

• Refereed journal publications: 60   
• Chapters in books: 8   
• Refereed research reports: 26
• Miscellaneous publications: 53

Presentations

• National and international meetings: 157
• Regional meetings: 110

Selected Publications

• Kirkpartick, W.D., P.M. White, D.C. Wolf, G.J. Thoma, and C.M. Reynolds. 2008.  Petroleum-degrading microbial numbers in rhizosphere and non-rhizosphere crude oil-contaminated soil.  Int. J. Phytoremed. 10:210-221.
• Thompson, O.A., D.C. Wolf, J.D. Mattice, and G.J. Thoma.  2008.  Influence nitrogen addition and plant root parameters on phytoremediation of pyrene-contaminated soil.  Water, Air, and Soil Pollut. 189:37-47.
• Kirkpatrick, W.D., P.M. White, Jr., D.C. Wolf, G.J. Thoma, and C.M. Reynolds. 2006. Selecting plants and nitrogen rates to vegetate crude-oil-contaminated soil. Int. J. Phytorem. 8:285-297.
• White, Jr., P.M., D.C. Wolf, G.J. Thoma, and C.M. Reynolds. 2006. Phytoremediation of alkylated polycyclic aromatic hydrocarbons in a crude oil-contaminated soil. Water Air Soil Pollut. 169:207-220.
• Krutz, L.J., C.A. Beyrouty, T.J. Gentry, D.C. Wolf, and C.M. Reynolds. 2005. Selective enrichment of a pyrene degrader population and enhanced pyrene degradation in bermudagrass rhizosphere. Biol. Fert. Soils. 41:359-364.
• Wolf, D.C. and G.H. Wagner. 2005. Carbon transformations and soil organic matter formation. p. 285-332. In D.M. Sylvia, J.J. Fuhrmann, P.G. Hartel, and D.A. Zuberer (ed.) Principles and applications of soil microbiology. 2nd ed. Prentice-Hall, Inc., Upper Saddle River, NJ.
• Ziegler, S.E., P.M. White, D.C. Wolf, and G.J. Thoma. 2005. Tracking the fate and recycling of 13C-labeled glucose in soil. Soil Sci. 170:767-778.
• Gentry, T.J., D.C. Wolf, C.M. Reynolds, and J.J. Fuhrmann. 2003. Pyrene and phenanthrene influence on soil microbial populations. Bioremed. J.  7:53-68.
• Lalande, T.L., H.D. Skipper, D.C. Wolf, C.M. Reynolds, D.L. Freedman, B.W. Pinkerton, P.G. Hartel, and L.W. Grimes. 2003. Phytoremediation of pyrene in a Cecil soil under field conditions. Int. J. Phytoremed. 5:1-12.
• Thoma, G. J., Lam, T. B., and Wolf, D. C. 2003a. A mathematical model of phytoremediation for petroleum-contaminated soil: Model development. Int. J. Phytorem. 5:41-55.
• Thoma, G. J., Lam, T. B., and Wolf, D. C. 2003b. A mathematical model of phytoremediation for petroleum-contaminated soil: Sensitivity analysis. Int. J. Phytorem. 5:125-136.
• White, Jr., P.M., D.C. Wolf, G.J. Thoma, and C.M. Reynolds. 2003. Influence of organic and inorganic soil amendments on plant growth in crude oil-contaminated soil. Int. J. Phytorem. 5:381-397.
• Olexa, T.J., T.J. Gentry, P.G. Hartel, D.C. Wolf, J.J. Fuhrmann, and C.M. Reynolds. 2000. Mycorrhizal colonization and microbial community structure in the rhizosphere of annual ryegrass grown in pyrene-amended soils. Int. J. Phytoremed. 2:213-231.