2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
5/25/2021 | 8:30 AM - 10:30 AM | EXPLORING TEMPORAL AND SPATIAL DRIVERS OF NUTRIENT DYNAMICS IN AN URBAN STREAM RECEIVING MINE DRAINAGE | Virtual Platform
EXPLORING TEMPORAL AND SPATIAL DRIVERS OF NUTRIENT DYNAMICS IN AN URBAN STREAM RECEIVING MINE DRAINAGE
This study takes place within the Tri-State Mining District in a small urban stream known as Lone Elm Creek in Joplin, Missouri, USA. Lone Elm Creek receives point source discharge of metal contaminants, primarily lead, zinc, cadmium, and iron, from an abandoned subsurface mine shaft (i.e., mine adit). We explore how the mine adit influences net and gross nutrient uptake metrics across temporal and spatial scales along two consecutive reaches located upstream and downstream of the mine adit. We performed constant-rate ammonium and phosphate injections in addition to sampling surface water chemistry and primary producers for nine consecutive months (biweekly during summer months and monthly during fall and winter). Preliminary findings indicate that nutrient uptake in the upstream and downstream reaches are driven differently. Ammonium uptake in the upstream reach is largely influenced by seasonal patterns in primary producers while the downstream reach shows a relationship between ammonium uptake and streamflow. Additionally, nutrient uptake in the downstream reach is influenced by elevated inputs of ammonium and iron from the mine adit.
- Contaminants
- Nutrient cycling
- Biogeochemistry
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Presenters/Authors
Jessica Wilson
(), University of Missouri, School of Natural Resources, wilsonjess@mail.missouri.edu;
ASHA DISCLOSURE:
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Alba Argerich
(), School of Natural Resources, University of Missouri, argericha@missouri.edu;
ASHA DISCLOSURE:
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Nonfinancial -