Official Series Description


Lab Data Summary

Aggregate lab data for the URBO soil series. This aggregation is based on all pedons with a current taxon name of URBO, 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 URBO 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
133AS71AL-025-371AL025003-pgmUrbo3Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties31.5019493103027,-87.9108352661133
133AS88AL-131-388AL131003-pgmUrbo3Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties31.86,-87.5388889
133AS95AL-023-195AL023001-pgmUrbo3Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties32.0936111,-88.0630556
133B89P078589LA115028Urbo7Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties31.0849991,-93.5283356
135AS85AL-011-785AL011007-pgmUrbo3Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties32.1925,-85.8755556
135A91P105691AL091005Urbo7Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties32.2994461,-87.6769409
152B82P086082TX351001Urbo6Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties30.825,-93.5875

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the URBO 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 URBO 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 URBO 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 URBO 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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Click the image to view it full size.

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

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Click the image to view it full size.

Competing Series

Soil series competing with URBO 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 URBO series and competing. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data .

There are insufficient data to create the annual climate figure.

Geomorphic description summaries for the URBO 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 .

There are insufficient data to create the 2D hillslope position figure.

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

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.

Soil series sharing subgroup-level classification with URBO, 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. AL-2010-02-25-02 | Wilcox County - March 1999

    Generalized patterns of soils, geomorphology, and landscape relationships in the Urbo-Mooreville-Una, Annemaine-Izagora-Lenoir, Luverne-Halso, Arundel-Cantuche, and Bama-Malbis-Luverne general soil map units along the Alabama River in the central part of Wilcox County (Soil Survey of Wilcox County, Alabama; 1999).

  2. MS-2012-04-27-07 | Tippah County - February 1966

    Distribution and pattern of major soils in Falaya-Urbo-Waverly association (Soil Survey of Tippah County, Mississippi; February 1966).

Map Units

Map units containing URBO 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
Urbo-Mooreville-Una complex, 0 to 3 percent slopes, frequently floodedMn269883281742svnfal00319611:20000
Urbo and Riverview soils, 0 to 1 percent slopes, frequently floodedURA22887328436c0rqal01119861:20000
Urbo-Mooreville-Una complex, 0 to 3 percent slopes, frequently floodedUrB302503285702svnfal02319981:24000
Urbo-Mooreville-Una complex, 0 to 3 percent slopes, frequently floodedUuB714303286452svnfal02520041:24000
Urbo-Mooreville-Una complex, 0 to 3 percent slopes, frequently floodedUrB362003297292svnfal06520031:24000
Urbo-Una-Mooreville complex, 0 to 1 percent slopes, frequently floodedUvA18288330506c2xhal08719971:24000
Urbo-Mooreville-Una complex, 0 to 3 percent slopes, frequently floodedUuB267203306052svnfal09119971:24000
Urbo-Una complex, 0 to 1 percent slopes, frequently floodedUuA814429950492x5qpal09720181:24000
Urbo-Mooreville-Una complex, 0 to 3 percent slopes, frequently floodedUuB333329950322svnfal09720181:24000
Urbo silty clay loam, 0 to 1 percent slopes, frequently floodedUrA18560330862c38zal09919841:20000
Urbo-Mooreville-Una complex, 0 to 3 percent slopes, frequently floodedUrB135003312722svnfal10719971:24000
Urbo-Mooreville-Una complex, 0 to 2 percent slopes, frequently floodedUuA4390331352c3ssal11319971:24000
Urbo-Mooreville-Una complex, 0 to 3 percent slopes, frequently floodedUuB3607626421442svnfal12920131:24000
Urbo-Mooreville-Una complex, 0 to 3 percent slopes, frequently floodedUuB292403316802svnfal13119971:24000
Urbo silty clay loam, occasionally flooded89149993179427lyptar01919831:20000
Urbo silty clay loam, 0 to 2 percent slopes, frequently flooded18B294117159081vljwar05320061:24000
Urbo silt loam, 0 to 1 percent slopes, occasionally floodedUrA6452721521s6swar09920001:24000
Urbo silty clay loam, 0 to 3 percent slopes, occasionally flooded41B306317075441v9v2ar13319961:24000
Urbo silty clay loam, 0 to 3 percent slopes, frequently flooded42B45117075451v9v3ar13319961:24000
Urbo silty clay loam, occasionally floodedUr97814137011jg28la01919831:24000
Urbo silty clay loam, frequently floodedUr3235569990m43sla07919731:24000
Urbo silty clay, frequently floodedUBA804117255771vxlsla11519921:24000
Urbo silty clay loam, 0 to 2 percent slopes, occasionally floodedUr145513318622vxx3ms01319631:15840
Urbo silty clayUr8453331915c4cyms01719691:20000
Urbo silt loam, occasionally floodedUr462331963c4fhms01919821:20000
Urbo silty clay loam, 0 to 2 percent slopes, occasionally flooded, blackland prairieUr76063321132tjkwms02519741:20000
Mooreville, Jena and Urbo soils, 0 to 3 percent slopes, frequently floodedMJU2917231216922z3t0ms03919671:20000
Urbo-Mooreville-Una complex, 0 to 3 percent slopes, frequently floodedUuB1421731216932svnfms03919671:20000
Urbo-Mooreville-Una complex, 0 to 3 percent slopes, frequently floodedUuB1126626422512svnfms04120121:24000
Urbo-Mooreville-Una complex, 0 to 3 percent slopes, frequently flooded4472758731216912svnfms05919971:24000
Mooreville, Jena and Urbo soils, 0 to 3 percent slopes, frequently flooded4461058431216902z3t0ms05919971:24000
Urbo association, frequently floodedUR13224332664c553ms06119741:20000
Una-Urbo complex, frequently floodedUn4619332665c554ms06119741:20000
Urbo silty clay loam, 0 to 2 percent slopes, occasionally flooded, blackland prairieUr230016035502tjkwms07920081:24000
Urbo-Mantachie association, occasionally floodedUM23935333460c5zsms10319831:20000
Urbo silty clay loam, 0 to 2 percent slopes, occasionally flooded, blackland prairieUb70183334612tjkwms10319831:20000
Urbo silty clay loam, 0 to 2 percent slopes, occasionally flooded, blackland prairieUr152153335212tjkwms10519681:20000
Urbo silty clay loam, 0 to 2 percent slopes, occasionally floodedUr154463337362vxx3ms11519691:20000
Urbo-Arkabutla association, frequently flooded914176333882c6fdms12119841:20000
Urbo silty clay loam, 0 to 2 percent slopes, occasionally flooded, blackland prairie884883338812tjkwms12119841:20000
Urbo silty clay loam, 0 to 2 percent slopes, occasionally flooded, blackland prairieUr2267424264692tjkwms12320091:24000
Urbo clay loam, occasionally floodedUo8007334078c6mqms12919971:20000
Una and Urbo soils, frequently floodedUU2706334077c6mpms12919971:20000
Urbo silty clay loam, 0 to 2 percent slopes, occasionally floodedUr28953342242vxx3ms13919631:15840
Urbo silty clayUr2039334281c6v8ms14519751:20000
Urbo-Una complex, gently undulating, frequently floodedUaB306824034922lp10ms15320081:24000
Urbo silty clay loam, 0 to 2 percent slopes, occasionally flooded, blackland prairieUr24323344792tjkwms15519741:20000
Urbo silt loam, occasionally floodedUo7327334525c734ms15919971:24000
Urbo and Chenneby soils, frequently floodedUC3345327508bzsstn06919961:24000
Urbo silty clay loam, 0 to 2 percent slopes, occasionally floodedUr23853275092vxx3tn06919961:24000
Urbo and Mantachie soils, frequently floodedUm261462773763dkn6tx61119801:20000

Map of Series Extent

Approximate geographic distribution of the URBO 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 .