Brent Dalzell

Degree Earned: MS

Graduation Year: 2000

Advisor(s): Prasanna Gowda

Thesis Title: Modeling and evaluation of nonpoint source pollution in the lower Minnesota River Basin.

Current Position: Research Associate, Department of Soil, Water and Climate, University of Minnesota

Brent currently has two main research foci: (1) Understanding the role of the landscape in delivering dissolved carbon to aquatic ecosystems, and (2) Applying modeling approaches to understand and reduce agricultural impacts on water quality at the watershed scale.

Mailing Address: 

Department of Soil, Water, and Climate
439 Borlaug Hall
1991 Upper Buford Circle
St. Paul, MN 55108

Phone: 612-625-0445

Email: bdalzell@umn.edu

Website: http://www.tc.umn.edu/~bdalzell/index.html

Publications:
Dalzell, B.J., E.C. Minor, and K. Mopper. Accepted pending minor revision(2008). Photodegradation of estuarine dissolved organic matter: a multi-dimensional investigation of DOM transformations. (Organic Geochemistry).

Minor, E. C., B. J. Dalzell, and K. Mopper. 2007. Effects of photodegradation on the composition and optical properties of dissolved organic matter in a temperate estuary. Aquatic Sciences. doi: 10.1007/s00027-007-0897-y

Dalzell, B. J., T. R. Filley, and J. M. Harbor. 2007. The role of hydrology in annual organic carbon loads and terrestrial organic matter export from a midwestern agricultural watershed. Geochimica et Cosmochimica Acta. doi:10.1016/j.gca.2006.12.009

Gowda, P. H., B. J. Dalzell, D. J. Mulla. 2007. Model based nitrate TMDLs for two agricultural watersheds of southeastern Minnesota. Journal of the American Water Resources Association. 43(1), 254-263: doi: 10.1111/j.1752-1688.2007.00020.x

Minor, E. C., J. Pothen, B. J. Dalzell, H. Abdulla and K. Mopper. 2006. Effects of salinity changes on the photodegradation and UV-visible absorbance of terrestrial dissolved organic matter. Limnology and Oceanography. 51(5), 2181-2186.

Dalzell, B. J., T. R. Filley, and J. M. Harbor. 2005. Flood pulse influences on terrestrial organic matter export from an agricultural watershed. Journal of Geophysical Research. 110(G02011) doi:10.1029/2005JG000043.

Dalzell, B. J., P. H. Gowda, and D. J. Mulla. 2004. Modeling sediment and phosphorus losses in an agricultural watershed to meet TMDLs. Journal of the American Water Resources Association. 40(October 9, 2008J. Mulla, and B. J. Dalzell. 2004. Metamodeling phosphorus best management practices for policy use: a frontier approach. Agricultural Economics. 30: 63-74.

Mulla, D. H., P. H. Gowda, A. S. Birr, and B. J. Dalzell. 2003. Estimating nitrate-N losses at different spatial scales in agricultural watersheds. chapter in: Scaling Methods in Soil Physics. CRC Press. 295-307.

Gowda, P. H., D. J. Mulla, and B. J. Dalzell. 2003. Examining and targeting conservation tillage practices to steep/flat landscapes in the Minnesota River Basin. Journal of Soil and Water Conservation 58(1): 53-57.

Gowda, P. H., B. J. Dalzell, D. J. Mulla, and F. Kollman. 2001. Mapping tillage practices with Landsat Thematic Mapper based logistic regression models. Journal of Soil and Water Conservation 56(2): 91-96.