EcoService Models Library (ESML)

Document: Nutrient Tracking Tool - a user-friendly tool for calculating nutrient reductions for water quality trading (Doc-354)

354
Authors
Saleh, A., O. Gallego, E. Osei, H. Lal, C. Gross, S. McKinney, and H. Cover
Year
2011
Title
Nutrient Tracking Tool - a user-friendly tool for calculating nutrient reductions for water quality trading
Document Type
Journal Article
Journal
Journal of Soil and Water Conservation
Volume
66
Issue
6
Pages
400-410
Abstract
The Nutrient Tracking Tool (NTrT) is an enhanced version of the Nitrogen Trading Tool, a user-friendly Web-based computer program originally developed by the USDA. The NTrT estimates nutrient (nitrogen and phosphorus) and sediment losses from fields managed under a variety of cropping patterns and management practices through its user-friendly, Web-based linkage to the Agricultural Policy Environmental eXtender (APEX) model. It also accesses the USDA Natural Resources Conservation Service’s Web Soil Survey to utilize their geographic information system interface for field and operation identification and load soil information. The NTrT provides farmers, government officials, and other users with a fast and efficient method of estimating nitrogen and phosphorus credits for water quality trading, as well as other water quality, water quantity, and farm production impacts associated with conservation practices. The information obtained from the tool can help farmers determine the most cost-effective conservation practice alternatives for their individual operations and provide them with more advantageous options in a water quality credit trading program. An application of the NTrT to evaluate conservation practices on fields receiving dairy manure in a north central Texas watershed indicates that phosphorus-based application rates, filter strips, forest buffers, and complete manure export off the farm all result in reduced phosphorus losses from the fields on which those practices were implemented. When compared to a base¬line condition that entailed manure application at the nitrogen agronomic rate of receiving crops, the reductions in total phosphorus losses associated with these practices ranged from 15% (2P Rate scenario) to 76% (forest buffer scenario).
URL Exit
http://www.jswconline.org/content/66/6/400.abstract
EMs citing this document as a source
EM-584
EMs citing this document for a related EM
?
None
EMs citing this document for a compared EM
?
None