Technical Documentation of the Regional Manure Management Model for the Chesapeake Bay Watershed

By Marcel Aillery, Noel Gollehon, and Vince Breneman

Technical Bulletin No. (TB1913) 56 pp, March 2005

As part of a broader ERS assessment of the costs of manure management, a regional modeling framework was developed to evaluate the effect of Federal guidelines for farmland application of manure on the costs of hauling and spreading manure. This report presents technical details of the regional modeling system, applied to the Chesapeake Bay watershed. The report includes an overview of the model’s scope and structure, data sources, and modeling assumptions. Results from an initial application of the modeling system are featured in the ERS publication Manure Management for Water Quality: Costs to Animal Feeding Operations of Applying Manure Nutrients to Land (AER-824, June 2003).

Keywords: agricultural economics, manure management, livestock waste, nutrients, nitrogen, phosphorus, water quality, CAFO, AFO, Chesapeake Bay, manure hauling, land application, Clean Water Act, ERS, USDA

In this report ...

Chapters are in Adobe Acrobat PDF format.

• Abstract, Acknowledgments, Contents, 68 kb
• Summary, 51 kb
• Introduction, 1,019 kb
• Overview of Modeling Framework, 112 kb
• Model Data, 551 kb
• Model Equation System, 67 kb
• Output Generation, 3,244 kb
• Conclusion and Future Extensions, 52 kb
• References, 49 kb
• Appendices, 78 kb

• Entire Document, 5,004 kb

Updated date: March 18, 2005