2023 Early Hearing Detection & Intervention Conference

March 5-7, 2023 • Cincinnati, OH

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6/08/2017 | 2:30 PM - 2:45 PM | USING IN-SITU SPECTROMETRY TO ASSESS NUTRIENT LOADING ALONG A RURAL TO URBAN GRADIENT AND INFORM WATERSHED MANAGEMENT | 306A

USING IN-SITU SPECTROMETRY TO ASSESS NUTRIENT LOADING ALONG A RURAL TO URBAN GRADIENT AND INFORM WATERSHED MANAGEMENT

Falls and Jordan Lake supply much of the drinking water to the Research Triangle region of North Carolina and are immediately downstream of areas undergoing rapid urbanization. These reservoirs provide difficult management challenges due to the heterogeneity of land use spanning rural to urban. Along this gradient, nutrient sources vary greatly (e.g. agricultural runoff, septic systems, leaking sewer lines), as does the hydrologic regime altered by impervious surface cover and hydrologic connectivity (i.e. pipes and roads). Existing models of nutrient loading for large watersheds, often limited by the constraints of grab sampling, do not investigate patch scale processes. As such, they fail to resolve nutrient loading in space and time. Ecohydrologic models informed by fine scale data collection will be necessary to identify hot spots and hot moments in nutrient loading that can act as control points for watershed management. To this end, we are leveraging existing water chemistry data with in-situ spectrometry at land use specific sub catchments to build a process level understanding of nutrient loading that can be applied to heterogeneous watersheds.

C36 Water Resource Management
C08 Urban Ecology
C27 Landuse and Non-Point source Impacts

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Presenters/Authors

Joseph Delesantro (), University of North Carolina - Chapel Hill, jmdelesantro@gmail.com;