A5024381392- Soil Carbon and Nitrogen Dynamics
- Soil and Water Nutrient Dynamics
- Coastal wetland ecosystem dynamics
- Aeolian processes and effects
- Groundwater flow and contamination studies
- Urban Stormwater Management Solutions
- Marine and coastal plant biology
- Plant nutrient uptake and metabolism
- Geology and Paleoclimatology Research
- Fire effects on ecosystems
- Rangeland and Wildlife Management
- Peatlands and Wetlands Ecology
- Crop Yield and Soil Fertility
- Smart Materials for Construction
- Coastal and Marine Dynamics
- Agriculture, Soil, Plant Science
University of Maryland, College Park
2018-2024
Old Dominion University
2017
Abstract Factors driving freshwater salinization syndrome (FSS) influence the severity of impacts and chances for recovery. We hypothesize that spread FSS across ecosystems is a function interactions among five state factors: human activities , geology flowpaths climate time . (1) Human drive pulsed or chronic inputs salt ions mobilization chemical contaminants. (2) Geology drives rates erosion, weathering, ion exchange, acidification‐alkalinization. (3) Flowpaths contaminant along...
Cover crops reduce nitrate leached, but effects on nitrous oxide (N2O) emissions are mixed. can N2O by reducing levels of mineral nitrogen (N) and surface soil moisture during spring. also increase adding organic substrates, releasing N decomposition, or increasing summer water content. Winter-killed cover soluble C periods typically low microbial activity. We hypothesized that planting a crop mix radish (Raphanus sativus)-crimson clover (Trifolium incarnatum)-rye (Secale cereale) would...
Cover crops can reduce nitrate leaching after cash crop harvest. Despite widespread cover implementation, there has been a limited effect on water quality in the Chesapeake Bay watershed. We hypothesize that typical timing for Maryland planting harvest is too late to allow roots take up substantial from soil profile before it leached by winter drainage water. Across four site-years (including sandy and silty soils), we compared various dates radish (Raphanus sativus L.)-crimson clover...
Day, F.P.; Adams, E.C.; Gibala-Smith, L.A.; Graziani, D.J.; McMillan, B.; Sedghi, N.; Shafer, J., and Smith, M., 2018. Determining change in coastal barrier island dune vegetation following a decade of nitrogen fertilization.Nitrogen deposition from agricultural industrial sources is threat to terrestrial biodiversity, impacts are likely be greatest nitrogen-deficient systems. The results 10 year fertilization treatment on dunes the cessation fertilizer application reported here. study...
Cover crops reduce nitrate leached, but effects on nitrous oxide (N2O) emissions are mixed. can N2O by reducing levels of mineral nitrogen (N) and surface soil moisture during spring. also increase adding organic substrates, releasing N decomposition, or increasing water content summer. Winter-killed cover matter soluble periods typically low microbial activity. We hypothesized that planting a crop mix radish (Raphanus sativus)-crimson clover (Trifolium incarnatum)-rye (Secale cereale) would...