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Department: Natural Resource Ecology and Management
Research Interests: water quality, biogeochemistry, riparian buffers, sediment source, greenhouse gas emissions, nitrogen cycling, stream ecology
Brief description of current research:
The goal of our research is to develop locally-acceptable, economically viable, watershed management systems that increase the sustainability of agriculture with respect to water quality, while improving the integrity of the aquatic and terrestrial ecosystems. We utilize observational and experimental approaches within managed and unmanaged ecosystems to assess the function of conservation buffers and improve their design and performance. Scales of study range from assessing microbial regulation of carbon and nitrogen cycling in stream and riparian systems to prioritizing the placement of conservation practices within a watershed.
Tufekcioglu, M., T. M. Isenhart, R. C. Schultz, D. A. Bear, J. L. Kovar, and J. R. Russell, 2012: Stream bank erosion as a source of sediment and phosphorus in grazed pastures of the Rathbun Lake Watershed in southern Iowa, USA. J. Soil and Water Conserv., in press.
Schilling, K., T. Isenhart, J. Palmer, C. Wolter, and J. Spooner, 2011: Detecting changes in suspended sediment transport with land cover change in two agricultural watersheds. J. Amer. Water Resources Assoc., 47, 672-686.
Kim, D., T. M. Isenhart, T. B. Parkin, R. C. Schultz, and T.E. Loynachan, 2010: Methane flux in riparian forest buffer, warm-season and cool-season grass filter, and adjacent crop fields soils. J. Environ. Qual., 39, 97-105.
Berges, S. A., L. A. Schulte Moore, T. M. Isenhart, and R. C. Schultz, 2010: Bird species diversity in riparian buffers, row crop fields, and grazed pastures within agriculturally dominated watersheds. Agroforestry Systems, 79, 97-110.