Impact of a Forested State Park on Nutrient Concentrations in an Agriculturally-Dominated Watershed in Southwest Ohio

Authors: Tessa Farthing*, Miami University of Ohio, Bartosz Grudzinski , Miami University of Ohio, Eileen Rintsch, Miami University of Ohio
Topics: Water Resources and Hydrology, Environmental Science, Earth Science
Keywords: hydrology, water, water quality, riparian buffer, nutrients, eutrophication, nonpoint source pollutants, runoff
Session Type: Virtual Paper
Day: 4/7/2021
Start / End Time: 3:05 PM / 4:20 PM
Room: Virtual 25
Presentation File: No File Uploaded

Agricultural land use increases nutrient levels in streams and often results in eutrophication. Previous studies have shown that land cover, geomorphology, hydrology, and seasonal change can influence nutrient levels in streams. This study examines the spatial and temporal nutrient dynamics as water travels from agriculturally dominated land through a large forested area in southwestern Ohio. Water is collected biweekly from 19 sites. The samples are processed for total nitrogen (TN), nitrate (NO3-), total phosphorus (TP), and soluble reactive phosphorus (SRP). Preliminary results will be presented, and the study will continue for a complete hydrological year. Statistical analyses will be used in order to determine if the forested buffer provides meaningful water quality improvement and to measure the impact of stream morphology, discharge, land cover, and vegetation condition on nutrient levels.

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