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RESEARCH / REGIONAL-SCALE NUTRIENT FLOW ANALYSIS 

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Regional-Scale Nutrient Flow Analysis 

Grady and Mohammadpour are using embedded resource accounting to track imports and exports of nutrients from the Chesapeake Bay watershed using commodity trade data. These models allow them to link social and biophysical nutrient management scenarios. Initial work focuses exclusively on nitrogen and includes major commodity and consumer products along livestock and meat supply chains. Future work will integrate additional crops and will explore additional nutrients such as phosphorus using embedded resource accounting.

FEWs Lab

Project Leaders


Caitlin Grady

Assistant Professor of Civil and Environmental Engineering, Penn State

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Paniz Mohammadpour

PhD Student, Department of Civil and Environmental Engineering, Penn State

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Project Team


Brosi Bradley

Research Technician, Penn State

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Marali Kalra

PhD Student, Department of Civil and Environmental Engineering, Penn State

Jason Kaye

Distinguished Professor of Soil Biogeochemistry, Penn State

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Whitney Lisenbee

Postdoc, Department of Ecosystem Science and Management, Penn State

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Madeline Luthard

PhD Student, Department of Ecosystem Science and Management, Penn State

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Cibin Raj

Assistant Professor of Agricultural and Biological Engineering, Penn State

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Zachary Sanders

Research Technician & PhD Candidate, Penn State

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Charlie White

Assistant Professor and Extension Specialist, Soil Fertility and Nutrient Management, Penn State

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