How cost-effective are cover crops, wetlands, and two-stage ditches for nitrogen removal in the Mississippi River Basin? Roley, Sarah Tank, Jennifer Tyndall, John Tyndall, John Witter, Jonathan
dc.contributor.department Natural Resource Ecology and Management
dc.contributor.other Iowa Nutrient Research Center 2018-02-17T21:01:16.000 2020-06-30T06:12:15Z 2020-06-30T06:12:15Z Fri Jan 01 00:00:00 UTC 2016 2017-06-22 2016-06-22
dc.description.abstract <p>Excess nitrogen (N) causes numerous water quality problems, and in the upper Mississippi River Basin, much of the excess N results from landscape modifications necessary for row crop agriculture. Several conservation practices reduce N export, but cost estimates for these practices are often lacking, which can inhibit decisions by farmers and policy-makers. Many practices are eligible for cost-share funds from the United States Department of Agriculture (USDA), but these programs do not usually cover the full cost, and so farmers need to be able to approximate their share of costs. In addition, cost estimates may help the USDA to set priorities and make programmatic decisions. We address lack of cost information by estimating the direct implementation costs and USDA program costs for three agricultural conservation practices: wetlands, cover crops, and two-stage ditches, over 10 and 50 year time horizons. We then compare these costs to the N removal effectiveness of each practice, in $ kg N<sup>−1</sup> removed. Wetlands were the most cost-effective practice (in $ kg N<sup>−1</sup> removed) over both time horizons. Over 50 years, the two-stage ditch ranked second in cost-effectiveness and cover crops were least cost-effective, while over 10 years, cover crops were second and two-stage ditches were least cost-effective. Finally, we note that these practices need not be used in isolation, but can be implemented simultaneously to maximize N removal. Overall, our analysis suggests that careful implementation can cost-effectively mitigate N pollution.</p>
dc.description.comments <p>This is a manuscript of an article from <em>Water Resources and Economics</em> (2016): doi: <a href="" id="x-x-ddDoi">10.1016/j.wre.2016.06.003</a></p>
dc.format.mimetype application/pdf
dc.identifier archive/
dc.identifier.articleid 1201
dc.identifier.contextkey 8985024
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath nrem_pubs/201
dc.language.iso en
dc.source.bitstream archive/|||Fri Jan 14 22:19:45 UTC 2022
dc.source.uri 10.1016/j.wre.2016.06.003
dc.subject.disciplines Natural Resources and Conservation
dc.subject.disciplines Natural Resources Management and Policy
dc.subject.disciplines Terrestrial and Aquatic Ecology
dc.title How cost-effective are cover crops, wetlands, and two-stage ditches for nitrogen removal in the Mississippi River Basin?
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 03cc07d5-7bb9-4546-9d5b-a6e7d71da8ae
relation.isOrgUnitOfPublication e87b7b9d-30ea-4978-9fb9-def61b4010ae
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