Official Series Description


Lab Data Summary

Aggregate lab data for the ROEBUCK soil series. This aggregation is based on all pedons with a current taxon name of ROEBUCK, 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 ROEBUCK were used in the calculation. Source: KSSL snapshot . Methods used to assemble the KSSL snapshot used by SoilWeb / SDE

There are insufficient data to create the lab data summary figure.


Water Balance

Monthly water balance estimated using a leaky-bucket style model for the ROEBUCK 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 ROEBUCK 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 ROEBUCK 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 ROEBUCK 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.

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Competing Series

Soil series competing with ROEBUCK 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 ROEBUCK 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 ROEBUCK 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.

Click the image to view it full size.

Click the image to view it full size.

Soil series sharing subgroup-level classification with ROEBUCK, 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. LA-2012-02-01-01 | Bossier Parish - August 1962

    Physiographic relationships of general soil areas in the northwestern part of Bossier Parish. The area represented is about 12 miles square (Soil Survey of Bossier Parish, Louisiana; August 1962).

  2. OK-2012-02-17-07 | Love County - September 1966

    Diagram showing typical relief and relative positions of the soils in associations 2 and 5 in the north-central part of Love County (Soil Survey of Love County, Oklahoma; September 1966).

  3. OK-2012-02-17-08 | Love County - September 1966

    Diagram showing typical relief in the northwestern corner of the county and the relative positions of the soils in association 4 (Soil Survey of Love County, Oklahoma; September 1966).

Map Units

Map units containing ROEBUCK 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
Roebuck clay, 0 to 1 percent slopes, rarely flooded734626381858dtc0ok01319741:24000
Roebuck clay, 0 to 1 percent slopes, frequently flooded742860381859dtc1ok01319741:24000
Roebuck clay, 0 to 1 percent slopes, occasionally flooded427203571234m5dxok02319771:24000
Roebuck and Garvin soils, 0 to 1 percent slopes, frequently floodedRn4414383737dw9mok08519631:24000
Tinn-Roebuck complex, 0 to 1 percent slopes, occasionally floodedPr17878571171m5bwok08919701:24000
Roebuck clay, 0 to 1 percent slopes, pondedRk4252571175m5c0ok08919701:24000
Roebuck clay, 0 to 1 percent slopes, occasionally flooded5823711064223kqzok10119841:24000
Roebuck clay, 0 to 1 percent slopes, rarely flooded5722461064213kqyok10119841:24000
Roebuck clay, 0 to 1 percent slopes, frequently flooded5915731064232tgv3ok10119841:24000
Roebuck clay, 0 to 1 percent slopes, frequently floodedRbkA16103841992tgv3ok10719961:24000
Roebuck clay, 0 to 1 percent slopes, frequently floodedRc31971064762tgv3ok11119681:24000
Roebuck silty clay loam, 0 to 1 percent slopes, rarely floodedMs1108571900m63dok13519661:24000
Roebuck clay, 0 to 1 percent slopes, rarely floodedMr720571899m63cok13519661:24000
Roebuck clay, 0 to 1 percent slopes, rarely floodedRbcA52697298rdlhok14519721:24000
Roebuck clay, frequently flooded243856575269m9m2tx03719781:20000

Map of Series Extent

Approximate geographic distribution of the ROEBUCK 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 .