Spatially Determining Potential Phosphorus Sources and Agricultural Buffers in the Lamoille Watershed
2011 Vermont EPSCoR Watershed Project Annual Symposium, , , 2011
Abstract: Watershed managers have long been trying to reduce the nutrient loads to Vermont's surface waters. Point sources of phosphorus (P) have successfully been reduced in the last 20 years mostly through wastewater treatment plant upgrades and chemical P capture. Hence, nonpoint sources (e.g., urban and agricultural runoff) have become the final frontier of nutrient pollution mitigation. In 2008, the VT EPSCoR Streams Project began acquiring water quality data across Vermont. This data may be used for monitoring the health of freshwater ecosystems and for identifying nonpoint problem areas. In this study, we identified streams in the Lamoille watershed which have the highest average total phosphorus (TP) concentrations measured over the last three summers. Using GIS, we spatially located possible P sources and identified areas where vegetated road and agricultural buffers could be developed. We then studied the potential short-circuiting of these buffers due to runoff channelization in higher slope areas. It is further hypothesized that land with higher slope could be modified to slow water and encourage infiltration through the use of berms/swales or terracing, or that areas exhibiting channelized runoff could employ an in situ engineered P chemisorption system.
[edit database entry]
Bongard's work focuses on understanding the general nature of cognition, regardless of whether it is found in humans, animals or robots. This unique approach focuses on the role that morphology and evolution plays in cognition. Addressing these questions has taken him into the fields of biology, psychology, engineering and computer science.
Danforth is an applied mathematician interested in modeling a variety of physical, biological, and social phenomenon. He has applied principles of chaos theory to improve weather forecasts as a member of the Mathematics and Climate Research Network, and developed a real-time remote sensor of global happiness using messages from Twitter: the Hedonometer. Danforth co-runs the Computational Story Lab with Peter Dodds, and helps run UVM's reading group on complexity.
Laurent studies the interaction of structure and dynamics. His research involves network theory, statistical physics and nonlinear dynamics along with their applications in epidemiology, ecology, biology, and sociology. Recent projects include comparing complex networks of different nature, the coevolution of human behavior and infectious diseases, understanding the role of forest shape in determining stability of tropical forests, as well as the impact of echo chambers in political discussions.
Hines' work broadly focuses on finding ways to make electric energy more reliable, more affordable, with less environmental impact. Particular topics of interest include understanding the mechanisms by which small problems in the power grid become large blackouts, identifying and mitigating the stresses caused by large amounts of electric vehicle charging, and quantifying the impact of high penetrations of wind/solar on electricity systems.
Bagrow's interests include: Complex Networks (community detection, social modeling and human dynamics, statistical phenomena, graph similarity and isomorphism), Statistical Physics (non-equilibrium methods, phase transitions, percolation, interacting particle systems, spin glasses), and Optimization(glassy techniques such as simulated/quantum annealing, (non-gradient) minimization of noisy objective functions).