Effects of agriculture on the classification of Black soils in the Midwestern United States

dc.contributor.author Veenstra, Jessica
dc.contributor.author Burras, C. Lee
dc.contributor.author Burras, C.
dc.contributor.department Agronomy
dc.date 2018-02-16T05:04:45.000
dc.date.accessioned 2020-06-29T23:04:07Z
dc.date.available 2020-06-29T23:04:07Z
dc.date.copyright Sun Jan 01 00:00:00 UTC 2012
dc.date.issued 2012-01-01
dc.description.abstract <p>Soil surveys are generally treated as static documents. Many soil survey users assume that pedon data generated 30 to 50 yr ago still represents today’s soil, as short-term changes in soil properties are perceived to be limited to the soil surface and thus pedologically insignificant. In this study, we re-sampled and re-analyzed 82 pedons with historical descriptions and laboratory data in Iowa, United States, to evaluate changes in soil profile properties and taxonomic classification after approximately 50 yr of agricultural land use. Using historical and current data, we classified sampled pedons using Canadian Soil Taxonomy, US Soil Taxonomy and the Food and Agriculture Association World Reference Base (FAO-WRB). Our results show that soil characteristics have changed significantly enough to change the classification. In each taxonomic system, the classification of 60% or more of the sampled pedons differed from the original. Classification of 15 to 32% of the sampled pedons changed at the Order (or equivalent) level with 11 to 33% of the pedons originally classified as Black soils Mollisols, Chernozems or Phaeozems no longer classified as Black soils. The change in soil classification over such a short-time period challenges the validity and usefulness of treating existing soil maps as static documents as well as traditional soil classification hierarchies.</p>
dc.description.comments <p>This article is from <em>Canadian Journal of Soil Science</em>, 92(3); 403-411; doi: <a href="http://www.dx.doi.org/10.4141/cjss2010-018" target="_blank">10.4141/cjss2010-018</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/agron_pubs/30/
dc.identifier.articleid 1031
dc.identifier.contextkey 6994240
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath agron_pubs/30
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/4643
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/agron_pubs/30/2012_BurrasCLee_EffectsAgricultureClassification.pdf|||Fri Jan 14 23:27:00 UTC 2022
dc.source.uri 10.4141/cjss2010-018
dc.subject.disciplines Agricultural Science
dc.subject.disciplines Agronomy and Crop Sciences
dc.subject.disciplines Other Earth Sciences
dc.subject.disciplines Soil Science
dc.subject.keywords Soil taxonomy
dc.subject.keywords Classification
dc.subject.keywords Black soils
dc.subject.keywords Midwestern United States
dc.subject.keywords Agriculture
dc.title Effects of agriculture on the classification of Black soils in the Midwestern United States
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 8742ab5b-ceec-4fd2-9668-044f07dc0c45
relation.isOrgUnitOfPublication fdd5c06c-bdbe-469c-a38e-51e664fece7a
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