Campus Units
Agricultural and Biosystems Engineering
Document Type
Conference Proceeding
Conference
International Symposium on Soil Erosion Research for the 21st Century
Publication Version
Published Version
Publication Date
2001
Journal or Book Title
Proceedings of the International Symposium on Soil Erosion Research for the 21st Century
First Page
354
Last Page
357
DOI
10.13031/2013.3279
Conference Title
International Symposium on Soil Erosion Research for the 21st Century
Conference Date
January 3-5, 2001
City
Honolulu, HI
Abstract
Nonpoint source pollution has been identified as one of the major sources of pollution of surface water bodies in Iowa and the Midwest. GLEAMS (Version 2.1) model was calibrated and validated using three years (1990-92) field data on nitrate-nitrogen (NO3-N) and herbicide concentrations in subsurface drain water. GLEAMS model was calibrated for chisel plow system and was validated for chisel plow, moldboard plow, ridge till and no-till systems based on measured tile flows, nitrate-nitrogen (NO3-N), atrazine, and alachlor losses with tile flows, N-uptake and other biomass parameters. The nutrient component of the GLEAMS model was calibrated using steady state N-pool values obtained after multiple years of model runs. The results of this study has demonstrated that GLEAMS model has the potential to simulate tillage effects on tile flow, leaching losses of NO3-N, atrazine, and alachlor with tile flows, N-uptake and biomass parameters within 10% difference of the measured values.
Copyright Owner
American Society of Agricultural and Biological Engineers
Copyright Date
2001
Language
en
File Format
application/pdf
Recommended Citation
Bakhsh, Allah and Kanwar, Ramesh S., "Calibration and Validation of GLEAMS for Predicting Non-Point Source Pollution from Agricultural Lands" (2001). Agricultural and Biosystems Engineering Conference Proceedings and Presentations. 607.
https://lib.dr.iastate.edu/abe_eng_conf/607
Included in
Agriculture Commons, Bioresource and Agricultural Engineering Commons, Environmental Monitoring Commons, Water Resource Management Commons
Comments
This proceeding is published as Bakhsh, A., and R. S. Kanwar. "Calibration and Validation of GLEAMS for Predicting Non-Point Source Pollution from Agricultural Lands." In Proceedings of the International Symposium on Soil Erosion Research for the 21st Century, ASAE Publication Number 701P0007 (J.C. Ascough II and D.C. Flanagan, eds.). (2001): 354-357. DOI: 10.13031/2013.3279. Posted with permission.