This work was conducted to explore how dissolved organic carbon (DOC) derived from different organic matter sources degraded within the sediment water interface (SWI), and how its reactivity or 'lability' affected nitrogen cycling and denitrification products within the SWI. Field work consisted of push-pull experiments at Augusta Creek, in Hickory Corners, MI, and additional laboratory studies were conducted by Joe-Lee Cullin and undergraduate Rachel Geiger at Michigan State. This work was supported by a Kellogg Biological Station LTER Summer Research Fellowship and a GSA Summer Research Grant, as well as the NSF Research Experiences for Undergraduates Program.
Joe Lee-Cullin and Tyler Hampton sampling during Push-Pull experiments in Augusta Creek, Summer 2017 |
Joe Lee-Cullin and Rachel Geiger collecting flocculated organic matter from Augusta Creek for use in batch reactor studies of DOM quality and reactivity |