Official Series Description


Lab Data Summary

Aggregate lab data for the WHITEWRIGHT soil series. This aggregation is based on all pedons with a current taxon name of WHITEWRIGHT, 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 WHITEWRIGHT 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 WHITEWRIGHT 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 WHITEWRIGHT 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 WHITEWRIGHT 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 WHITEWRIGHT 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 WHITEWRIGHT 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 WHITEWRIGHT 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 WHITEWRIGHT 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.

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 WHITEWRIGHT, 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. TX-2010-11-03-03 | Fannin County - 2001

    Pattern of soils and parent material in the Whitewright-Howe general soil map unit (Soil Survey of Fannin County, Texas; 2001).

  2. TX-2012-03-22-14 | Williamson County - January 1983

    Typical landscape pattern of the Austin-Houston Black-Castephen general soil map unit (Soil Survey of Williamson County, TX; 1983).

Map Units

Map units containing WHITEWRIGHT 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
Whitewright clay loam, 1 to 5 percent slopesWhC845391073f3y8tx02719721:24000
Austin-Whitewright complex, 2 to 6 percent slopes, erodedAwD363731300342s1qttx02719721:24000
Whitewright-Austin complex, 1 to 5 percent slopesBsC9172390452f397tx02920001:24000
Whitewright clay loam 1 to 5 percent slopesBpC5080390449f394tx02920001:24000
Eddy-Whitewright complex, 8 to 20 percent slopes288216364809d7m1tx11319751:20000
Eddy-Whitewright-Urban land complex, 8 to 15 percent slopes291797364810d7m2tx11319751:20000
Whitewright loam, 3 to 5 percent slopes16767364796d7lmtx11319751:20000
Whitewright and Austin soils, 2 to 5 percent slopes erodedBkC2742365280d837tx13919621:20000
Whitewright-Howe complex, 5 to 12 percent slopes, erodedWwD218201365562d8dbtx14719891:24000
Howe-Whitewright complex, 3 to 5 percent slopesHwC12543365527d8c6tx14719891:24000
Whitewright-Eddy-Howe complex, 5 to 12 percent slopes7720925366717d9lltx18119771:20000
Whitewright-Eddy-Howe complex, 1 to 5 percent slopes768884366716d9lktx18119771:20000
Whitewright-Gullied land complex785669366718d9lmtx18119771:20000
Urban land, Austin, and Whitewright soils, 1 to 8 percent slopesUtD9910393255f66ntx45319691:20000
Austin-Whitewright complex, 3 to 5 percent slopes, moderately erodedAtC23300392159f529tx45319691:20000
Whitewright clay loam, 1 to 5 percent slopesBkC1423392166f52jtx45319691:20000
Austin-Whitewright complex, 5 to 8 percent slopes, moderately erodedAtD21198392160f52btx45319691:20000
Austin-Whitewright complex, 2 to 6 percent slopes, erodedAwD3189413735192s1qttx49119811:20000
Whitewright silty clay loam, 1 to 5 percent slopesWhC2929373579djqytx49119811:20000

Map of Series Extent

Approximate geographic distribution of the WHITEWRIGHT 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 .