Official Series Description


Lab Data Summary

Aggregate lab data for the STADY soil series. This aggregation is based on all pedons with a current taxon name of STADY, 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 STADY 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
n/a10N0722S2008ND093002Stady7Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Propertiesn/a

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the STADY 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 STADY 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 STADY 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 STADY 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 STADY 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 STADY 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 STADY 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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There are insufficient data to create the 3D hills figure.

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

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Soil series sharing subgroup-level classification with STADY, 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. ND-2010-09-27-14 | Morton County - 2002

    Typical pattern of soils and underlying materials in the Straw-Parshall-Manning-Stady association (Soil Survey of Morton County, North Dakota; 2002).

  2. SD-2012-03-15-07 | Corson County - July 1995

    Pattern of soils and parent material in the Reeder-Cabba association (Soil Survey of Corson County, SD; 1995).

Map Units

Map units containing STADY 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
Stady-Wabek complex, 1 to 4 percent slopes5B8571478674yvxmt63019911:24000
Stady silt loam, cool, 1 to 4 percent slopes13B5121477024yplmt63019911:24000
Stady loam, 0 to 2 percent slopesE4537A935225257681vzw9nd00119831:20000
Stady-Lehr loams, 2 to 6 percent slopesE4538B399225257592r4fbnd00119831:20000
Stady-Shambo, gravelly substratum loams, 0 to 2 percent slopesE4570A1427556662r4fhnd00119831:20000
Stady loam, 0 to 2 percent slopesE4537A179527071081vzw9nd00719981:24000
Stady-Lehr loams, 2 to 6 percent slopesE4538B171627071092r4fbnd00719981:24000
Stady loam, 0 to 2 percent slopesE4537A932025636141vzw9nd01119691:20000
Stady-Lehr loams, 2 to 6 percent slopesE4538B315025636152r4fbnd01119691:20000
Stady-Shambo, gravelly substratum loams, 0 to 2 percent slopesE4570A203825636162r4fhnd01119691:20000
Stady loam, 0 to 2 percent slopesE4537A367727072551vzw9nd02519811:20000
Stady-Lehr loams, 2 to 6 percent slopesE4538B355927072562r4fbnd02519811:20000
Stady-Lehr loams, 0 to 2 percent slopesC815A225525954532q53bnd02919791:20000
Stady-Lehr loams, 2 to 6 percent slopesC815B93225954542q53cnd02919791:20000
Stady-Lehr loams, 6 to 9 percent slopesC815C10925954552q53dnd02919791:20000
Stady loam, 0 to 2 percent slopesE4537A970517155081vzw9nd03719851:20000
Stady-Lehr loams, 2 to 6 percent slopesE4538B2427596552r4fbnd03719851:20000
Stady loam, 0 to 2 percent slopesE4537A705425258221vzw9nd04119861:20000
Lehr-Stady loams, 2 to 6 percent slopesE4513B24082525821cdpjnd04119861:20000
Stady-Lehr loams, 2 to 6 percent slopesE4538B224125258232r4fbnd04119861:20000
Lehr-Stady loams, 0 to 2 percent slopesE4513A177725258202qz96nd04119861:20000
Stady-Lehr loams, 2 to 6 percent slopesC815B1825967652q53cnd05119921:24000
Stady-Lehr loams, 0 to 2 percent slopesC815A1325967502q53bnd05119921:24000
Stady-Lehr loams, 2 to 6 percent slopesC815B325955502q53cnd05519741:20000
Lehr-Stady loams, 2 to 6 percent slopesE4513B48692699181cdpjnd05919981:20000
Stady loam, 0 to 2 percent slopesE4537A191626992141vzw9nd05919981:20000
Lehr-Stady loams, 0 to 2 percent slopesE4513A17926991802qz96nd05919981:20000
Stady loam, 0 to 2 percent slopesE4537A727557001vzw9nd06519711:20000
Stady loam, 0 to 2 percent slopesE4537A134926991281vzw9nd08519921:24000
Stady loam, 0 to 2 percent slopesE4537A1011327158631vzw9nd08719741:20000
Stady-Lehr loams, 2 to 6 percent slopesE4538B483727158642r4fbnd08719741:20000
Stady loam, 0 to 2 percent slopesE4537A346617135761vzw9nd08919651:20000
Stady-Lehr loams, 2 to 6 percent slopesE4538B38527160202r4fbnd08919651:20000
Stady loam, 0 to 2 percent slopesStA11112356215cyntsd03119861:24000
Stady loam, 2 to 6 percent slopesStB2742356216cynvsd03119861:24000
Stady loam, 0 to 2 percent slopesSeA20409354662cx1qsd10519771:24000
Stady loam, 0 to 3 percent slopesStA3355355894cybgsd13719851:24000

Map of Series Extent

Approximate geographic distribution of the STADY 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 .