2023 Early Hearing Detection & Intervention Conference

March 5-7, 2023 • Cincinnati, OH

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5/21/2018 | 12:15 PM - 12:30 PM | TESTING OPTIONS FOR REACHING LAKE ERIE’S PHOSPHORUS REDUCTION TARGETS USING MULTIPLE WATERSHED MODELS | 420 B

TESTING OPTIONS FOR REACHING LAKE ERIE’S PHOSPHORUS REDUCTION TARGETS USING MULTIPLE WATERSHED MODELS

In 2016 the United States and Canada formally agreed to target reductions of phosphorus inputs to Lake Erie with the intention of alleviating the lake’s eutrophication. This included a 40% reduction from 2008 levels of March-July total phosphorus and dissolved reactive phosphorus loading from the Maumee River watershed. A key question remains: what land management options and rates of implementation will be needed to reach this 40% reduction? Here we will highlight results from two interdisciplinary research collaborations. A stakeholder advisory group assisted in identifying feasible and desirable conservation options for the watershed, which were in turn tested in multiple models of the Maumee watershed. In the first project the collective modeling suggested that it may be possible to meet these targets through widespread implementation and increased adoption of conservation practices, and the second project takes these findings and reworks the approach to simultaneously improve feasibility of conservation adoption and associated water quality benefits. In both projects we find dissolved phosphorus targets to be more difficult to meet than total phosphorus targets.

Water Quality
Restoration
Landuse

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Presenters/Authors

Margaret Kalcic (), The Ohio State University, kalcic.4@osu.edu;