Official Series Description


Lab Data Summary

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

Soil series competing with BULLFLAT 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 BULLFLAT 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 BULLFLAT 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 .

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Soil series sharing subgroup-level classification with BULLFLAT, 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 BULLFLAT 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
Bullflat silt loam, 3 to 6 percent slopesQ0608B425169942krlgsd04719801:24000
Bullflat silt loam, moist, 2 to 10 percent slopesQ0535C88523757662kr5msd08120071:24000
Bullflat, moist-Cordeston silt loams, 2 to 9 percent slopesQ0502C67823757312kr4hsd08120071:24000
Bullflat silt loam, moist, 3 to 6 percent slopesQ0501B26423757292kr4fsd08120071:24000
Bullflat silt loam, moist, 6 to 15 percent slopesQ0501D21323757302kr4gsd08120071:24000
Bullflat-Gurney-Rockerville complex, moist, 6 to 20 percent slopesQ0504D17024259522mfdjsd08120071:24000
Bullflat, moist-Cordeston silt loams, 2 to 9 percent slopesQ0502C17425139582kr4hsd60019741:24000
Bullflat silt loam, moist, 2 to 10 percent slopesQ0535C16725172122kr5msd60019741:24000
Bullflat silt loam, moist, 3 to 6 percent slopesQ0501B10425139502kr4fsd60019741:24000
Bullflat silt loam, moist, 6 to 15 percent slopesQ0501D2825139522kr4gsd60019741:24000
Hilger, cobbly-Bullflat complex, 6 to 40 percent slopesQ0629E1005325865922wcb5sd60720111:24000
Bullflat-Cordeston, dry silt loams, high mica, 2 to 9 percent slopesQ0300C689925866062krjfsd60720111:24000
Bullflat silt loam, 3 to 6 percent slopesQ0608B580325866102krlgsd60720111:24000
Bullflat-Cordeston, dry silt loams, 2 to 9 percent slopesQ0609C577425864172mhnlsd60720111:24000
Bullflat-Hilger, cobbly complex, 0 to 6 percent slopesQ0629B495925865242wcb4sd60720111:24000
Bullflat, moist-Cordeston silt loams, 2 to 9 percent slopesQ0502C181425865912kr4hsd60720111:24000
Bullflat, moist-Cordeston silt loams, high mica, 2 to 9 percent slopesQ0200C149225866122kr29sd60720111:24000
Bullflat silt loam, 0 to 3 percent slopesQ0608A97425864802krlfsd60720111:24000
Bullflat, cool-Crydeston silt loams, 2 to 9 percent slopesQ0422C88325865552mhhvsd60720111:24000
Bullflat silt loam, moist, 3 to 6 percent slopesQ0501B12925866012kr4fsd60720111:24000
Bullflat silt loam, moist, 3 to 6 percent slopesQ0501B1125139602kr4fwy04519841:24000
Bullflat-Caryville families, complex, 7 to 25 percent slopes402L162216865581tm03wy65620081:24000
Bullflat-Ledgefork families, complex, 7 to 40 percent slopes44L11491577595950wy65620081:24000

Map of Series Extent

Approximate geographic distribution of the BULLFLAT 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 .