Modification of DRAINAGE Model by Using the Nitrogen Component from the GLEAMS Model

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dc.contributor.author Tim, U. Sunday
dc.contributor.author Verma, Ashok
dc.contributor.author Kanwar, Rameshwar
dc.contributor.author Tim, U. Sunday
dc.contributor.author Kanwar, Rameshwar
dc.contributor.department Agricultural and Biosystems Engineering
dc.date 2018-02-14T09:44:15.000
dc.date.accessioned 2020-06-29T22:40:28Z
dc.date.available 2020-06-29T22:40:28Z
dc.date.copyright Sun Jan 01 00:00:00 UTC 1995
dc.date.embargo 2014-07-28
dc.date.issued 1995
dc.description.abstract <p>The NITRO subroutine of the DRAINAGE model (Kanwar et al., 1983) was modified using the nitrogen transformation components of the GLEAMS (Leonard et al., 1987) model to predict more accurately the leaching of NO3-N to subsurface drainage water. Predicted values of tile flows and nitrate concentrations in tile effluent have shown a good agreement with observed data for the period from 1984 to 1992. There were some discrepancies between the predicted and observed values in the beginning of the simulation period resulting from lack of field data for soil-profile initialization. Despite the assumed steady-state condition within each time increment (one day) and the complexity of the drainage system, the modified DRAINAGE model has shown the capability to reasonably estimate long-term N loss with tile effluent. Average deviation and standard error between the predicted and observed NO3-N concentrations in the tile water indicated that the modified DRAINAGE model developed in this study resulted in better predictions of NO3-N concentrations in the drainage water than the original DRAINAGE model.</p>
dc.description.comments <p>This article is from <em>Transactions of the ASAE</em> 38 (1995): 717–724, doi:<a href="http://dx.doi.org/10.13031/2013.27885" target="_blank">10.13031/2013.27885</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_pubs/514/
dc.identifier.articleid 1800
dc.identifier.contextkey 5835938
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/514
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/1289
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_pubs/514/1995_Verma_ModificationDRAINAGE.pdf|||Sat Jan 15 00:44:35 UTC 2022
dc.source.uri 10.13031/2013.27885
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.disciplines Water Resource Management
dc.subject.keywords GLEAMS
dc.subject.keywords DRAINAGE
dc.subject.keywords Nitrogen
dc.subject.keywords Groundwater pollution
dc.title Modification of DRAINAGE Model by Using the Nitrogen Component from the GLEAMS Model
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 91ab6a73-cb6c-4e08-be19-ea6f43b35add
relation.isAuthorOfPublication 5210e67e-b8da-4e17-be3f-843a09381196
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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