Official Series Description


Lab Data Summary

Aggregate lab data for the RICHWOOD soil series. This aggregation is based on all pedons with a current taxon name of RICHWOOD, 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 RICHWOOD 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
104X53-977-1S1982IA105102Richwood2Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties42.2528133,-91.1982969
105X657W1-1S1962IA065008Richwood2Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties43.0583538,-91.7220839
105X657-1-0S1965IA065006Richwood1Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties43.0106464,-91.7410904
105X22-977-2S1975IA043009Richwood2Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties42.8058666,-91.5575663
105X22-977-1S1977IA043002Richwood2Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties42.8621905,-91.3841086
105X61977S1978IA061007Richwood2Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties42.5764767,-90.6941351
105X3-977-1S1987IA005009Richwood2Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties43.4234064,-91.452056

Water Balance

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

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Competing Series

Soil series competing with RICHWOOD 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 RICHWOOD 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 RICHWOOD 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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Click the image to view it full size.

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

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Click the image to view it full size.

Soil series sharing subgroup-level classification with RICHWOOD, 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. WI-2012-03-22-02 | Buffalo County - March 1962

    Soil associations and relief in Buffalo County. 1. Silty soils of the rolling limestone uplands and Steep stony and rocky land: Dubuque, Fayette, Steep stony and rocky land. 2. Loamy soils of the rolling to hilly sandstone uplands: Gale, Hixton. 3. Sandy soils of the rolling to hilly sandstone uplands: Boone, Hixton. 4. Sandy soils of stream terraces: Sparta, Plainfield. 5. Silty soils of stream terraces: Bertrand, Richwood. 6. Loamy terrace soils underlain by sand on stream terraces: Meridian, Tell. 7. Wet organic and mineral soils of bottom lands: Peat and Muck, Ettrick, Wallkill. 8. Soils of overflow bottom lands: Loamy alluvial lands, Marsh (Soil Survey of Bayfield County, WI; 1961).

  2. WI-2012-03-22-06 | Grant County - June 1961

    Landscape of Grant County showing the relationship of the major soil series (Soil Survey of Grant County, WI; 1961).

  3. WI-2012-03-23-02 | Iowa County - July 1962

    Two landscapes of terrace soils showing the relationship of the major soils. The upper illustration shows silty soils, and the lower one, sandy soils. By Soil Survey Division, University of Wisconsin (Soil Survey of Iowa County, WI; 1962).

Map Units

Map units containing RICHWOOD 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
Richwood silt loam, 1 to 6 percent slopes977B4094026222ysbvia00519921:15840
Richwood silt loam, 0 to 2 percent slopes97737213971441hwv5ia03120081:12000
Richwood silt loam, 1 to 6 percent slopes977B8764043252ysbvia04319791:15840
Richwood silt loam, 1 to 6 percent slopes977B18514044272ysbvia04519781:15840
Richwood loam, 1 to 3 percent slopes19772724046632wbdtia05119881:15840
Richwood silt loam, 1 to 6 percent slopes977B4604050982ysbvia05519841:15840
Richwood silt loam, 1 to 6 percent slopes977B2744058292ysbvia06519751:15840
Richwood silt loam, 0 to 2 percent slopes977332406917fnfcia08719821:15840
Richwood silt loam, 2 to 5 percent slopes977B309406918fnfdia08719821:15840
Richwood silt loam, 1 to 6 percent slopes977B5104075062ysbvia09719881:15840
Richwood silt loam, 0 to 2 percent slopes977357407914fpgjia10119921:15840
Richwood silt loam, 0 to 2 percent slopes9771754408525fq37ia11119761:15840
Richwood silt loam9771188408691fq8lia11319701:15840
Richwood silt loam, 0 to 2 percent slopes9772883410054frpkia13919861:15840
Richwood silt loam, 1 to 4 percent slopes, moderately eroded977B2514410055frplia13919861:15840
Richwood-Urban land complex, 2 to 5 percent slopes4977B174410001frmvia13919861:15840
Richwood silt loam, 0 to 2 percent slopes9772379411098fss7ia16319891:15840
Richwood-Urban land complex, 1 to 5 percent slopes4977B1607411012fspgia16319891:15840
Richwood silt loam, 0 to 2 percent slopes, rarely flooded9777184131942wbdsia17719941:12000
Richwood silt loam, 0 to 2 percent slopes, rarely flooded97716774118702wbdsia17919781:15840
Richwood silt loam, 2 to 5 percent slopes977B347411871ftl5ia17919781:15840
Richwood loam, 1 to 3 percent slopes19773314117762wbdtia17919781:15840
Richwood silt loam, 0 to 2 percent slopes485A1627186274620jblil01120071:12000
Richwood silt loam, 0 to 2 percent slopes485A165124478586q9il07320011:12000
Richwood silt loam, 2 to 5 percent slopes485B160924478686qbil07320011:12000
Richwood silt loam, 2 to 5 percent slopes485B17034793070vm7xil19520031:12000
Richwood-Urban land complex, 2 to 5 percent slopes2485B2068793110vm96il19520031:12000
Richwood silt loam, 5 to 10 percent slopes, eroded485C21430793071vm7yil19520031:12000
Richwood silt loamRW312396465f9k6mn01919871:12000
Richwood silt loam, 1 to 6 percent slopesN606B217516702112ysbvmn04920071:12000
Richwood silt loam, 1 to 6 percent slopesN606B3823982632ysbvmn05519811:15840
Richwood silt loam, 1 to 6 percent slopesN606B24234007472ysbvmn10919771:15840
Richwood silt loam, 2 to 6 percent slopes298B10216772261t992mn12319781:15840
Richwood silt loam, 0 to 2 percent slopes298616775491t9mhmn12319781:15840
Richwood silt loam, 1 to 6 percent slopesN606B136322176142ysbvmn15720081:12000
Richwood silt loam, 0 to 2 percent slopes298156516770901t94pmn16319781:15840
Richwood silt loam, 2 to 6 percent slopes298B92416770911t94qmn16319781:15840
Richwood silt loam, 1 to 6 percent slopes305B326125617972ysbvwi01119601:12000
Richwood silt loam, 1 to 6 percent slopes305B48625039952ysbvwi02319601:12000
Richwood silt loam, 1 to 6 percent slopes305B23817535622ysbvwi02519721:15840
Richwood silt loam, 1 to 6 percent slopes305B4494243152ysbvwi04319591:20000
Richwood silt loam, 1 to 6 percent slopes305B55254253792ysbvwi04519691:12000
Richwood silt loam, 1 to 6 percent slopes305B47028066302ysbvwi04919601:20000
Richwood silt loam, 1 to 6 percent slopes305B8214249112ysbvwi06519641:15840
Richwood silt loam, 1 to 6 percent slopes305B47624231982ysbvwi11119771:15840

Map of Series Extent

Approximate geographic distribution of the RICHWOOD 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 .