Official Series Description


Lab Data Summary

Aggregate lab data for the LITTLETAHOMA soil series. This aggregation is based on all pedons with a current taxon name of LITTLETAHOMA, 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 LITTLETAHOMA 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
313N0627S2011WA053509Littletahoma6Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties46.888896,-121.705082
313N0642S2012WA053587Littletahoma7Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties46.912726,-121.609235

Water Balance

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

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

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

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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 LITTLETAHOMA 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 LITTLETAHOMA series and competing. 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 LITTLETAHOMA 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.

Click the image to view it full size.

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 LITTLETAHOMA, 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

No block diagrams are available.

Map Units

Map units containing LITTLETAHOMA 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
Burroughs-Littletahoma-Tatoosh complex, 15 to 100 percent slopes925536329010672t0fpwa63419861:24000
Burroughs-Littletahoma-Tatoosh, moist complex, 15 to 100 percent slopes92502029010522sl0xwa63419861:24000
Burroughs-Littletahoma-Tatoosh complex, 15 to 100 percent slopes9255762329010862t0fpwa68020031:24000
Littletahoma-Burroughs-Mountwow complex, 15 to 100 percent slopes9257265029010842t0fywa68020031:24000
Mountwow-Littletahoma-Wahpenayo complex, 15 to 55 percent slopes9258179329010792t0fzwa68020031:24000
Burroughs-Littletahoma-Tatoosh complex, 15 to 100 percent slopes9255762327564412t0fpwa75420151:24000
Littletahoma-Burroughs-Mountwow complex, 15 to 100 percent slopes9257265027564492t0fywa75420151:24000
Mountwow-Littletahoma-Unicornpeak complex, 10 to 65 percent slopes9253239427564402t0fnwa75420151:24000
Littletahoma-Burroughs-Mountwow, moist complex, 20 to 100 percent slopes9252185327564392t0fmwa75420151:24000
Mountwow-Littletahoma-Wahpenayo complex, 15 to 55 percent slopes9258179327564502t0fzwa75420151:24000
Burroughs-Littletahoma-Tatoosh, moist complex, 15 to 100 percent slopes9250128627310522sl0xwa75420151:24000

Map of Series Extent

Approximate geographic distribution of the LITTLETAHOMA 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 .