EARLY HEARING DETECTION AND INTERVENTION VIRTUAL CONFERENCE
MARCH 2-5, 2021
(Virtually the same conference, without elevators, airplane tickets, or hotel room keys)
5/20/2019 | 2:30 PM - 2:45 PM | EFFECTS OF EXTENDED DROUGHT AND SUBSEQUENT FLOODING ON NUTRIENT DYNAMICS IN PRAIRE STREAMS | 254 B
EFFECTS OF EXTENDED DROUGHT AND SUBSEQUENT FLOODING ON NUTRIENT DYNAMICS IN PRAIRE STREAMS
Drought and flooding represent the dominant drivers of disturbance in intermittent streams. Effects of these drivers will be important to understand in the Great Plains, where drought risk and severity are expected to increase with climate change. Increases in drought severity may lead to longer dry periods in intermittent streams and intermittent conditions in streams that have historically been perennial. We used long-term water chemistry and discharge data measured on Konza Prairie Biological Station, Kansas, USA to examine effects of drought and rewetting on nutrient (C, N, and P) concentrations and export in prairie streams ranging from second- to fifth-order. There is a strong relationship between stream discharge and nutrient export, but the number of dry days preceding each flow event has small effect on nutrients compared to the magnitude of flow after drought. However, the effect of extended drought on nutrient export becomes greater in low-order drainages. These results suggest increased drought will affect nutrient export by headwater streams more than nutrient export by larger-order streams. This is likely due to more terrestrial influence in headwaters, and less processing time of terrestrial inputs in freshwater environments.
- Watershed
- Intermittency
- Disturbance
Presentation:
This presentation has not yet been uploaded.
Handouts:
Handout is not Available
Transcripts:
CART transcripts are NOT YET available, but will be posted shortly after the conference
Presenters/Authors
James Guinnip
(), Kansas State University, jguinnip@ksu.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Walter Dodds
(), Kansas State University, wkdodds@ksu.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -