Prosper Gbolo is a PhD Candidate in the University of North Dakota’s Harold Hamm School of Geology and Geological Engineering. Prosper Gbolo started his education in Ghana and continued at the University of Ghana, where he obtained a Bachelor of Science (BS) degree in Geology. He enrolled in the Ohio University’s Geological Sciences program to further his knowledge in surface and groundwater problems and how to manage those resources. In 2008, Prosper received a Master of Science (MS) degree in Geological Sciences at Ohio University. He worked with Professor Dina Lopez as a student researcher in the U.S. Environmental Protection Agency’s Science to Achieve Results (STAR) grant program. Prosper’s present research is focused on phosphorus transformation, mobilization, and sequestration within an abandoned cattle feedlot located in the Glacial Ridge National Wildlife Refuge near Crookston, Minnesota.
Quantifying Phosphorus Cycling and Fate within an Abandoned Feedlot
Fellow: Prosper Gbolo
Advisor: Phil Gerla, Ph.D., Associate Professor, Harold Hamm School of Geology and Geological Engineering, University of North Dakota.
Degree Progress: PhD in Geology and Geological Engineering; expected graduation in spring 2014.
Nutrients are very important chemical species that play important roles in soils, water, and living organisms, and are transformed from one species to another through different biogeochemical processes and cycles in different environments. Currently, there gaps that remain in our knowledge of the cycle, mobility, speciation, and sequestration of P in different environments. Nutrient quantification in runoff and nutrient leaching in groundwater systems has received attention recently. In view of this, Gbolo’s research will address the aspects of the P cycle within a heterogeneous beach ridge and wetland environment. This study will involve groundwater, soils, surface water, plants tissue, and microorganism analyses as part of a larger study to test the hypothesis that when P is transported by infiltration, it is sequestered and immobilized within natural sinks.
The project is in its final year. The site has been characterized using monitoring wells, nested wells, and soil pore water samples for groundwater nutrient monitoring. Grab and composite soil samples from various soil horizons and plant tissues have been sampled and analyzed during the 2012 and 2013 field season. Preliminary results of the groundwater have been published in the journal Hydrology and Earth System Sciences (HESS) and presently, the results of the soils and vegetation are in the final stage of review for submission.
This research will bridge some of the research gaps concerning nutrient pathways in surface and subsurface systems, and the relationship between nutrients, organic matter, soil physiochemical properties, and some chemical species. Result of this research will have an implication for feedlot management and pollution control, and also help develop regulations for protecting surface and groundwater quality without placing undue hardship on animal production.