Official Series Description


Lab Data Summary

Aggregate lab data for the SPEAKER soil series. This aggregation is based on all pedons with a current taxon name of SPEAKER, 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 SPEAKER 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
15UCD644514764-CA-45-147xSPEAKER3Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties40.6011848,-122.5701065

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the SPEAKER 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 SPEAKER 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 SPEAKER 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 SPEAKER 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 flats position figure.

Competing Series

Soil series competing with SPEAKER 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 SPEAKER 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 SPEAKER 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 flats position figure.

Soil series sharing subgroup-level classification with SPEAKER, 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. OR-2012-05-10-14 | Jackson County Area - August 1993

    Typical pattern of soils in the Steinmetz-Lettia and Josephine-Beekman-Speaker general map units (Soil Survey of Jackson County Area, Oregon; August 1993).

Map Units

Map units containing SPEAKER 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
Neuns-Bamtush-Speaker complex, 30 to 50 percent slopes557560461647hhcvca01119991:24000
Maymen-Etsel-Speaker association, 30 to 50 percent slopes52759461642hhcpca01119991:24000
Sanhedrin-Kekawaka-Speaker complex, 30 to 50 percent slopes20235752459605hf7zca03319851:24000
Maymen-Etsel-Speaker association, 30 to 50 percent slopes17020442459573hf6yca03319851:24000
Speaker-Maymen-Marpa association, 30 to 50 percent slopes22514596459628hf8qca03319851:24000
Neuns-Sanhedrin-Speaker gravelly loams, 30 to 50 percent slopes18814064459591hf7jca03319851:24000
Speaker-Marpa-Sanhedrin gravelly loams, 30 to 50 percent slopes2249201459627hf8pca03319851:24000
Speaker-Sanhedrin-Maymen association, 30 to 50 percent slopes2298640459632hf8vca03319851:24000
Speaker-Maymen-Marpa association, 50 to 75 percent slopes2266188459629hf8rca03319851:24000
Bamtush-Speaker-Sanhedrin gravelly loams, 30 to 50 percent slopes1105940459513hf50ca03319851:24000
Bamtush-Speaker-Sanhedrin gravelly loams, 50 to 75 percent slopes1113623459514hf51ca03319851:24000
Sanhedrin-Kekawaka-Speaker complex, 15 to 30 percent slopes2012655459604hf7yca03319851:24000
Speaker-Speaker variant-Sanhedrin association, 5 to 30 percent slopes2302327459633hf8wca03319851:24000
Speaker-Sanhedrin gravelly loams, 50 to 75 percent slopes2281776459631hf8tca03319851:24000
Speaker-Maymen-Millsholm association, 30 to 50 percent slopes2271422459630hf8sca03319851:24000
Neuns-Speaker gravelly loams, 15 to 30 percent slopes1911224459594hf7mca03319851:24000
Sanhedrin-Kekawaka-Speaker complex, 30 to 50 percent slopes202l24813834w9vqca05519741:24000
Speaker-Marpa-Sanhedrin gravelly loams, 30 to 50 percent slopes224l16077401qyzlca09719681:20000
Maymen-Etsel-Speaker association, 30 to 50 percent slopes170l16077361qyzgca09719681:20000
Speaker-Sanhedrin-Maymen association, 30 to 50 percent slopes229l16077511qyzyca09719681:20000
Speaker-Maymen-Marpa association, 50 to 75 percent slopes226l16077411qyzmca09719681:20000
Sanhedrin-Kekawaka-Speaker complex, 30 to 50 percent slopes19453284461079hgsjca68719851:24000
Sanhedrin-Kekawaka-Speaker complex, 50 to 75 percent slopes19512356461080hgskca68719851:24000
Updegraff-Speaker-Neuns complex, 30 to 50 percent slopes20811791461093hgszca68719851:24000
Asabean-Sanhedrin-Speaker gravelly loams, 30 to 50 percent slopes1029781460987hgpkca68719851:24000
Sanhedrin-Kekawaka-Speaker complex, 2 to 30 percent slopes1938204461078hgshca68719851:24000
Sanhedrin-Asabean-Speaker gravelly loams, 30 to 50 percent slopes1915693461076hgsfca68719851:24000
Updegraff-Speaker-Neuns complex, 50 to 75 percent slopes2094198461094hgt0ca68719851:24000
Asabean-Speaker-Neuns complex, 50 to 75 percent slopes1033782460988hgplca68719851:24000
Sanhedrin-Asabean-Speaker gravelly loams, 50 to 75 percent slopes192895461077hgsgca68719851:24000
Sanhedrin-Asabean-Speaker gravelly loams, 30 to 50 percent slopes191em81317011431v35lca70119841:24000
Sanhedrin-Asabean-Speaker gravelly loams, 50 to 75 percent slopes192em69917011441v35mca70119841:24000
Asabean-Speaker-Neuns complex, 50 to 75 percent slopes103em19017011281v353ca70119841:24000
Sanhedrin-Kekawaka-Speaker complex, 30 to 50 percent slopes194em6917011451v35nca70119841:24000
Asabean-Sanhedrin-Speaker gravelly loams, 30 to 50 percent slopes102em6517011271v352ca70119841:24000
Sanhedrin-Kekawaka-Speaker complex, 30 to 50 percent slopes194me13052747853hgsjca70920101:24000
Sanhedrin-Asabean-Speaker gravelly loams, 30 to 50 percent slopes191me2082747851hgsfca70920101:24000
Bamtush-Speaker-Sanhedrin gravelly loams, 30 to 50 percent slopes110la18727478662q3r6ca70920101:24000
Bamtush-Speaker-Sanhedrin gravelly loams, 50 to 75 percent slopes111la5227478672q3r7ca70920101:24000
Asabean-Sanhedrin-Speaker gravelly loams, 30 to 50 percent slopes102me512747828hgpkca70920101:24000
Sanhedrin-Kekawaka-Speaker complex, 2 to 30 percent slopes193me242747852hgshca70920101:24000
Neuns-Sanhedrin-Speaker gravelly loams, 30 to 50 percent slopes188la1227478712q3rcca70920101:24000
Speaker-Josephine-Beekman complex, 30 to 60 percent south slopes243F16416526625xcor01519951:24000
Josephine-Pollard-Speaker complex, 2 to 30 percent slopes157E6746506325ptor01519951:24000
Speaker-Josephine gravelly loams, 35 to 55 percent south slopes72F87105469520hrktor03319791:20000
Speaker-Josephine complex, 35 to 55 percent south slopes179F12609469660hrqbor63219891:20000
Josephine-Speaker complex, 35 to 55 percent north slopes92F5960469808hrw3or63219891:20000
Josephine-Speaker complex, 12 to 35 percent south slopes93E4235469809hrw4or63219891:20000
Josephine-Speaker complex, 12 to 35 percent north slopes92E1237469807hrw2or63219891:20000
Josephine-Speaker complex, 30 to 60 percent south slopes117F602576627626yyor64919941:24000
Speaker loam, 30 to 60 percent south slopes227F138426662227b3or64919941:24000
Josephine-Speaker complex, 30 to 60 percent north slopes116F115926627326yvor64919941:24000
Speaker-Nonpareil complex, 30 to 60 percent slopes230F70126663127bdor64919941:24000
Speaker loam, 30 to 60 percent north slopes226F68646662127b2or64919941:24000
Speaker loam, 2 to 20 percent slopes225D548866617279yor64919941:24000
Speaker loam, 20 to 30 percent slopes225E46606661927b0or64919941:24000
Speaker-Beekman-Josephine complex, 60 to 90 percent north slopes228G29646662427b5or64919941:24000
Speaker-Nonpareil complex, 3 to 30 percent slopes230E25706662927bbor64919941:24000
Speaker-Beekman-Nonpareil complex, 60 to 90 percent south slopes229G15236662527b6or64919941:24000

Map of Series Extent

Approximate geographic distribution of the SPEAKER 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 .