Karl Dria
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| Instrumentation Scientist
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B.S., Ashland University, 1997
M.S., The Ohio State University, 2000
Ph.D., The Ohio State University, 2004
Postdoctoral, Purdue University, 2004-2005
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| Phone: |
(317) 274-6879 |
Email: |
dria@chem.iupui.edu |
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Research |
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Publications |
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Research
My research interests involve using modern analytical instrumentation to
better understand nutrient storage and mobility in environmental systems.
Soil organic matter is viewed as the major organic source of C and N for
plants and microorganisms as well as an important sink in forest and
agricultural soils. To obtain a better understanding of C and N cycling in
these systems, one needs to understand humification, transformations,
mobilization, sequestration, the chemistry of organic matter inputs, and
the chemical structural changes that these materials are subjected to on
their path towards soil formation. Natural systems are very complex and
the understanding of these processes and how human perturbations (such as
management practice, increasing CO2, or N deposition from NOx) affect them
is still poorly understood.
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Recent Publications
S. B. Schwede-Thomas, Y.-P. Chin, K. J. Dria, P. Hatcher, E. Kaiser and B. Sulzberger
"Characterizing the properties of dissolved organic matter isolated by XAD and C-18
solid phase extraction and ultrafiltration" Aquatic Sciences 2005, 67, 61-71.
T. S. Bianchi, T. Filley, K. J. Dria and P. Hatcher "Temporal Variability in Sources of
Dissolved Organic Carbon in the Lower Mississippi River" Geochimica et Cosmochimica Acta
2004, 68, 959-967.
E. Kaiser, A. J. Simpson, K. J. Dria, B. Sulzberger and P. G. Hatcher "Solid-state and
multidimensional solution-state NMR of solid phase extracted and ultrafiltered riverine
dissolved organic matter" Environmental Science & Technology 2003, 37, 2929-2935.
K. J. Dria, J. R. Sachleben and P. G. Hatcher "Solid-state carbon-13 nuclear magnetic
resonance of humic acids at high magnetic field strengths" Journal of Environmental
Quality 2002, 31, 393-401.
P. G. Hatcher, K. J. Dria, S. Kim and S. W. Frazier "Modern analytical studies of humic
substances" Soil Science 2001, 166, 770-794.
X. Zang, J. D. H. Van Heemst, K. J. Dria and P. G. Hatcher "Encapsulation of protein in
humic acid from histosols as an explanation for the occurrence of organic nitrogen in
soil and sediment" Organic Geochemistry 2000, 31, 679-695.
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