Official Series Description


Lab Data Summary

Aggregate lab data for the SEYMOUR soil series. This aggregation is based on all pedons with a current taxon name of SEYMOUR, and applied along 1-cm thick depth slices. Solid lines are the slice-wise median, bounded on either side by the interval defined by the slice-wise 5th and 95th percentiles. The median is the value that splits the data in half. Five percent of the data are less than the 5th percentile, and five percent of the data are greater than the 95th percentile. Values along the right hand side y-axis describe the proportion of pedon data that contribute to aggregate values at this depth. For example, a value of "90%" at 25cm means that 90% of the pedons correlated to SEYMOUR were used in the calculation. Source: KSSL snapshot . Methods used to assemble the KSSL snapshot used by SoilWeb / SDE

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Pedons used in the lab summary:

MLRALab IDPedon IDTaxonnameCINSSL / NASIS ReportsLink To SoilWeb GMap
10984P08311984MO171003SEYMOUR5Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties40.5724983,-93.1697235
109M89197041989MO197004Seymour4Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties39.9162472,-93.9829222
109M03061032003MO061003mSeymour4Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties40.0924988,-93.8274994
10985P030384IA1770011Seymour5Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties40.7166672,-91.9416656
10985P030484IA1770012Seymour5Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties40.7166672,-91.9416656
10985P030584IA1770013Seymour5Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties40.7166672,-91.9416656
10985P030884IA1770022Seymour5Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties40.7000008,-91.9583359
10985P052784IA1850041Seymour5Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties40.7694435,-93.4833298
10985P052884IA1850042Seymour5Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties40.7694435,-93.4833298
10985P030285IA0510024Seymour5Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties40.7416649,-92.4583359
10986P039385IA1770016Seymour5Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties40.7166672,-91.9333344
10985P030785IA1770021Seymour5Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties40.7000008,-91.9583359
10986P041885IA1850061Seymour5Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties40.75,-93.4916687
10986P041985IA1850062Seymour5Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties40.75,-93.4916687
10987P033686IA0510014Seymour5Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties40.7391663,-92.5219421
10987P033786IA0510031Seymour5Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties40.7038879,-92.378334
10987P033886IA0510032Seymour5Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties40.7038879,-92.378891
10988P058687IA185001Seymour6Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties40.7694435,-93.4833298
10988P058787IA185002Seymour6Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties40.7694435,-93.4833298
10940A1505S1962IA185002Seymour7Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties40.7022209,-93.394165
10940A1506S1962IA185003Seymour7Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties40.7024994,-93.3844452
10940A1507S1962IA185006Seymour7Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties40.7163887,-93.1461105
115BM88197021988MO197002Seymour4Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties38.9672203,-92.3450012
115BM88197081988MO197008Seymour4Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties38.9672203,-92.3450012
115BM88197091988MO197009Seymour4Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties38.9672203,-92.3450012
115BM91197611991MO197061Seymour4Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties38.9672203,-92.3450012

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the SEYMOUR soil series. Monthly precipitation (PPT) and potential evapotranspiration (PET) have been estimated from the 50th percentile of gridded values (PRISM 1981-2010) overlapping with the extent of SSURGO map units containing each series as a major component. Monthly PET values were estimated using the method of Thornthwaite (1948). These (and other) climatic parameters are calculated with each SSURGO refresh and provided by the fetchOSD function of the soilDB package. Representative water storage values (“AWC” in the figures) were derived from SSURGO by taking the 50th percentile of profile-total water storage (sum[awc_r * horizon thickness]) for each soil series. Note that this representation of “water storage” is based on the average ability of most plants to extract soil water between 15 bar (“permanent wilting point”) and 1/3 bar (“field capacity”) matric potential. Soil moisture state can be roughly interpreted as “dry” when storage is depleted, “moist” when storage is between 0mm and AWC, and “wet” when there is a surplus. Clearly there are a lot of assumptions baked into this kind of monthly water balance. This is still a work in progress.

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Sibling Summary

Siblings are those soil series that occur together in map units, in this case with the SEYMOUR series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot , parsed OSD records and snapshot of SC database .

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Select annual climate data summaries for the SEYMOUR series and siblings. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data .

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Geomorphic description summaries for the SEYMOUR series and siblings. Series are sorted according to hierarchical clustering of proportions and relative hydrologic position within an idealized landform (e.g. top to bottom). Most soil series (SSURGO components) are associated with a hillslope position and one or more landform-specific positions: hills, mountain slopes, terraces, and/or flats. Proportions can be interpreted as an aggregate representation of geomorphic membership. The values printed to the left (number of component records) and right (Shannon entropy) of stacked bars can be used to judge the reliability of trends. Small Shannon entropy values suggest relatively consistent geomorphic association, while larger values suggest lack thereof. Source: SSURGO component records .

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There are insufficient data to create the 3D mountains figure.

There are insufficient data to create the 3D terrace figure.

There are insufficient data to create the 3D flats position figure.

Competing Series

Soil series competing with SEYMOUR share the same family level classification in Soil Taxonomy. Source: parsed OSD records and snapshot of the SC database .

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Select annual climate data summaries for the SEYMOUR series and competing. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data .

Click the image to view it full size.

Geomorphic description summaries for the SEYMOUR series and competing. Series are sorted according to hierarchical clustering of proportions and relative hydrologic position within an idealized landform (e.g. top to bottom). Proportions can be interpreted as an aggregate representation of geomorphic membership. Most soil series (SSURGO components) are associated with a hillslope position and one or more landform-specific positions: hills, mountain slopes, terraces, and/or flats. The values printed to the left (number of component records) and right (Shannon entropy) of stacked bars can be used to judge the reliability of trends. Shannon entropy values close to 0 represent soil series with relatively consistent geomorphic association, while values close to 1 suggest lack thereof. Source: SSURGO component records .

Click the image to view it full size.

Click the image to view it full size.

There are insufficient data to create the 3D mountains figure.

Click the image to view it full size.

Click the image to view it full size.

Soil series sharing subgroup-level classification with SEYMOUR, arranged according to family differentiae. Hovering over a series name will print full classification and a small sketch from the OSD. Source: snapshot of SC database .

Block Diagrams

Click a link below to display the diagram. Note that these diagrams may be from multiple survey areas.

  1. IA-2010-09-03-03 | Van Buren County - 2004

    Typical pattern of soils and parent material in the Edina-Seymour-Clarinda association (Soil Survey of Van Buren County, Iowa; 2004).

  2. IA-2011-05-31-09 | Davis County - 1991

    Typical pattern of soils and parent material in the Edina-Seymour-Clarinda association (Soil Survey of Davis County, Iowa; 1991).

Map Units

Map units containing SEYMOUR as a major component. Limited to 250 records.

Map Unit Name Symbol Map Unit Area (ac) Map Unit Key National Map Unit Symbol Soil Survey Area Publication Date Map Scale
Seymour silt loam, 2 to 5 percent slopes312B253424026732tfzjia00719701:15840
Seymour silty clay loam, 5 to 9 percent slopes, moderately eroded312C28994026742tfzmia00719701:15840
Seymour silt loam, 2 to 5 percent slopes312B186364046762tfzjia05119881:15840
Seymour silty clay loam, 2 to 5 percent slopes, moderately eroded312B216354046772tfzlia05119881:15840
Seymour silty clay loam, 5 to 9 percent slopes, moderately eroded312C238474047942tfzmia05319861:15840
Seymour silt loam, 2 to 5 percent slopes312B25304047922tfzjia05319861:15840
Seymour silt loam, 5 to 9 percent slopes312C4074047932tfzkia05319861:15840
Seymour silty clay loam, 5 to 9 percent slopes, moderately eroded312C28026476362tfzmia11719911:15840
Seymour silt loam, 2 to 5 percent slopes312B2026476342tfzjia11719911:15840
Seymour silt loam, 2 to 5 percent slopes312B40754130512tfzjia17719941:12000
Seymour silty clay loam, 2 to 5 percent slopes, moderately eroded312B221324130522tfzlia17719941:12000
Seymour silt loam, 2 to 5 percent slopes312B2952618608002tfzjia18519661:15840
Seymour silt loam, 5 to 9 percent slopes312C2426218608012tfzkia18519661:15840
Seymour silty clay loam, 5 to 9 percent slopes, moderately eroded312C21411018608022tfzmia18519661:15840
Seymour silt loam, 2 to 5 percent slopes3023558528879532tfzjmo06119521:24000
Seymour silty clay loam, 2 to 5 percent slopes, moderately eroded302361435825319782tfzlmo17119891:24000
Seymour silty clay loam, 2 to 5 percent slopes, moderately eroded30236763125319792tfzlmo19719931:24000
Seymour silty clay loam, 2 to 5 percent slopes, moderately eroded3023631625319772tfzlmo19919691:24000

Map of Series Extent

Approximate geographic distribution of the SEYMOUR soil series. To learn more about how this distribution was mapped, or to compare this soil series extent to others, use the Series Extent Explorer (SEE) application. Source: generalization of SSURGO geometry .