Inundation Patterns of Farmed Pothole Depressions with Varying Subsurface Drainage Martin, Alexander Kaleita, Amy Soupir, Michelle
dc.contributor.department Agricultural and Biosystems Engineering 2020-01-24T21:58:41.000 2020-06-29T22:36:56Z 2020-06-29T22:36:56Z Tue Jan 01 00:00:00 UTC 2019 2019-01-01
dc.description.abstract <p>The prairie pothole region (PPR) ranges from central Iowa to the northwest into Montana and south central Canada, totaling around 700,000 km2. This area contains millions of potholes, or enclosed topographical depressions, which often inundate with rainfall. Many are located in areas that have been converted to arable agricultural land through installation of artificial drainage. However, even with drainage, potholes will pond or have saturated soil conditions during and after significant rain events. The portion of the PPR that extends into Iowa is known as the Des Moines Lobe. In this two-year study, surface water depth data were collected hourly from eight prairie potholes in the Des Moines Lobe in central Iowa to determine the surface water hydrology. These potholes included surface and subsurface drained row crops and undrained retired land, allowing for drainage comparisons. Inundation lasted five or more days at least once at six of the eight potholes, including four potholes with surface inlets and subsurface drainage, which resulted in four of fourteen growing seasons not producing a yield in part of the pothole. Water balances of four different drainage intensities showed increased infiltration due to subsurface drainage and up to 78% of outflow due to surface inlet drainage. Overall, drainage decreased the number of average inundation days, but heavy precipitation events still caused lengthy inundation periods that resulted in crop loss.</p>
dc.description.comments <p>This article is published as Martin, Alexander, Amy L. Kaleita, and Michelle L. Soupir. "Inundation patterns of farmed pothole depressions with varying subsurface drainage." <em>Transactions of the ASABE</em> 62, no. 6 (2019): 1579-1590. DOI: <a href="" target="_blank">10.13031/trans.13435</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/
dc.identifier.articleid 2392
dc.identifier.contextkey 16333880
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/1108
dc.language.iso en
dc.source.bitstream archive/|||Fri Jan 14 18:41:43 UTC 2022
dc.source.uri 10.13031/trans.13435
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.disciplines Hydrology
dc.subject.keywords Farmed wetlands
dc.subject.keywords Prairie pothole
dc.subject.keywords Tile drainage
dc.subject.keywords Water balance
dc.title Inundation Patterns of Farmed Pothole Depressions with Varying Subsurface Drainage
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 8a405b08-e1c8-4a10-b458-2f5a82fcf148
relation.isAuthorOfPublication 04becbfb-7a97-4d96-a0dd-5514295530ee
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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