Official Series Description


Lab Data Summary

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

Click the image to view it full size.

Pedons used in the lab summary:

MLRALab IDPedon IDTaxonnameCINSSL / NASIS ReportsLink To SoilWeb GMap
78AS09TX441104S09TX441104Rotan6Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties32.4165878,-99.6317291
78C82P0158MLRA78-Rotan-TX009-008ROTAN7Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties33.7000008,-98.8333359
78CS08TX441102S08TX441102Rotan5Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties32.1887016,-99.8749008
78CS08TX441103S08TX441103Rotan6Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties32.189045,-99.875145

Water Balance

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

Click the image to view it full size.



Click the image to view it full size.

Sibling Summary

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

Click the image to view it full size.

Select annual climate data summaries for the ROTAN series and siblings. 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 ROTAN 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 .

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.

Competing Series

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

Click the image to view it full size.

Select annual climate data summaries for the ROTAN 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 ROTAN 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.

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

Soil series sharing subgroup-level classification with ROTAN, 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 ROTAN 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
Rotan silty clay loam, 0 to 1 percent slopesRoA8468362445d54stx00919861:24000
Rotan silty clay loam, 1 to 3 percent slopesRoB2861362446d54ttx00919861:24000
Rotan clay loam, 0 to 1 percent slopesRoA81533627302t01ctx02319711:24000
Sagerton-Rotan complex, 1 to 3 percent slopesSrB2802962336f6m0tx03319701:24000
Sagerton-Rotan complex, 1 to 3 percent slopesSrB4457393638f6m0tx11520041:24000
Rotan clay loam, 0 to 1 percent slopesRoA4917931561302t01ctx15520211:24000
Rotan clay loam, 1 to 3 percent slopesRoB488231561322t01dtx15520211:24000
Rotan clay loam, 1 to 3 percent slopes, severely erodedRoB390331561051ljjxtx15520211:24000
Rotan-Hinkle complex, 0 to 1 percent slopesRoHA29831561341ljjytx15520211:24000
Rotan clay loam, 0 to 1 percent slopesAbA107173671152t01ctx19719651:20000
Rotan clay loam, 0 to 1 percent slopesAcA805653674712t01ctx20719601:20000
Rotan clay loam, 0 to 1 percent slopesAbA350593682232t01ctx25319661:20000
Rotan clay loam, 0 to 1 percent slopes28196223687292t01ctx27519751:24000
Rotan-Winters-Miles complex, 0 to 1 percent slopes29121643687302z16htx27519751:24000
Rotan clay loam, dry, 0 to 1 percent slopes3529983710042t01btx35319791:24000
Rotan clay loam, 1 to 3 percent slopes361587371005dg1xtx35319791:24000
Rotan clay loam, dry, 0 to 1 percent slopesRnA116973723022t01btx43319701:24000
Rotan clay loam, 0 to 1 percent slopesRnA238633915432t01ctx44119711:20000
Rotan clay loam, 1 to 3 percent slopesRnB37763915442t01dtx44119711:20000
Rotan clay loam, dry, 0 to 1 percent slopesRtA53733727562t01btx45119711:20000
Rotan loam, 0 to 1 percent slopesRoA3010373384djjntx48519721:20000
Rotan loam, 1 to 3 percent slopesRoB2755373385djjptx48519721:20000
Rotan clay loam, 0 to 1 percent slopesAbA557153734062t01ctx48719601:20000
Rotan clay loam, 1 to 3 percent slopesAbB167223734072t01dtx48719601:20000
Rotan-Hinkle complexAk369373408djkftx48719601:20000

Map of Series Extent

Approximate geographic distribution of the ROTAN 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 .