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.

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.

Copyright Owner

American Society of Agricultural and Biological Engineers

Language

en

File Format

application/pdf

Share

Article Location

 
COinS