Official Series Description


Lab Data Summary

Aggregate lab data for the YREKA soil series. This aggregation is based on all pedons with a current taxon name of YREKA, 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 YREKA 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 YREKA 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 YREKA 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 YREKA 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 YREKA 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 YREKA 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 YREKA 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 YREKA 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 terrace figure.

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Soil series sharing subgroup-level classification with YREKA, 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 YREKA 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
Yreka gravelly loam, cool, 35 to 60 percent slopes195F1129955254whcmt60319891:24000
Yreka gravelly loam, cool, 15 to 35 percent slopes195E67515462955x1mt61620031:24000
Yreka gravelly loam, 15 to 35 percent slopes95E35615517656gpmt61620031:24000
Yreka gravelly loam, 35 to 60 percent slopes95F24915517756gqmt61620031:24000
Yreka gravelly loam, 8 to 15 percent slopes95D8615517556gnmt61620031:24000
Trapps-Yreka stony loams, 8 to 25 percent slopes198E515463155x3mt61620031:24000
Yreka gravelly loam, cool, 15 to 35 percent slopes195E48721442594v3jmt62119971:24000
Bignell, dry-Yreka, cool complex, 15 to 35 percent slopes299E47651443194v5gmt62119971:24000
Bignell-Yreka complex, cool, 15 to 35 percent slopes399E36421443784v7cmt62119971:24000
Yreka gravelly loam, 35 to 60 percent slopes95F29871446554vj9mt62119971:24000
Yreka gravelly loam, 15 to 35 percent slopes95E24311446544vj8mt62119971:24000
Yreka gravelly loam, cool, 35 to 60 percent slopes195F16641442604v3kmt62119971:24000
Bignell-Yreka complex, 15 to 35 percent slopes499E16031444614vb1mt62119971:24000
Bignell-Yreka gravelly loams, 35 to 60 percent slopes299F10771443204v5hmt62119971:24000
Yreka-Rock outcrop complex, 35 to 60 percent slopes995F9131446784vk1mt62119971:24000
Bignell-Yreka complex, cool, 35 to 60 percent slopes399F7741443794v7dmt62119971:24000
Bignell-Yreka-Crow complex, 15 to 35 percent slopes799E7131445854vg1mt62119971:24000
Bignell-Yreka gravelly loams, 8 to 15 percent slopes399D5541443774v7bmt62119971:24000
Yreka gravelly loam, 8 to 15 percent slopes95D3871446534vj7mt62119971:24000
Yreka-Rock outcrop complex, 15 to 35 percent slopes995E2641446774vk0mt62119971:24000
Bignell-Yreka complex, 8 to 15 percent slopes499D2471444604vb0mt62119971:24000
Bignell-Yreka-Crow complex, 8 to 15 percent slopes799D1891445844vg0mt62119971:24000
Trapps-Yreka complex, 4 to 8 percent slopes198C1431442654v3qmt62119971:24000
Bignell, dry-Yreka, cool complex, 8 to 15 percent slopes299D771443184v5fmt62119971:24000
Yreka gravelly loam, cool, 8 to 15 percent slopes195D651442584v3hmt62119971:24000
Bignell-Yreka complex, 35 to 60 percent slopes499F511444624vb2mt62119971:24000
Trapps-Yreka complex, 8 to 25 percent slopes198E321442664v3rmt62119971:24000
Yreka-Brickner, stony, complex, 35 to 70 percent slopes1164F182415051751mdmt62719981:24000
Sawbuck, stony-Yreka, stony-Catgulch, very stony, complex, 15 to 45 percent slopes2682E10231509775237mt62719981:24000
Repkie, very stony-Yreka, stony-Skyview, very bouldery, complex, 25 to 60 percent slopes2181F60015086851zqmt62719981:24000
Yreka very cobbly loam, 15 to 35 percent slopes, bouldery1162E29715051451m9mt62719981:24000
Lumpgulch, bouldery-Yreka, very bouldery-Shaboom, very bouldery, complex, 15 to 35 percent slopes1962E29215078151wxmt62719981:24000
Yreka, bouldery-Hoyt, bouldery-Shaboom, very bouldery, complex, 15 to 45 percent slopes1161E14715051351m8mt62719981:24000
Bignell, stony-Yreka, very stony, complex, 15 to 35 percent slopes1970E6915078651x2mt62719981:24000
Winkler-Yreka families-Rock outcrop complex, high relief mountain slopes and ridges71UCF237914950250knmt63520061:24000
Trapps-Yreka complex, 8 to 25 percent slopes198E208817032421v5c9mt63520061:24000
Yreka gravelly loam, 35 to 60 percent slopes95F115517029941v539mt63520061:24000
Yreka gravelly loam, cool, 15 to 35 percent slopes195E98417032411v5c8mt63520061:24000
Yreka-Winkler families-Rock outcrop complex, low relief mountain slopes and ridges75UCF96414953350lnmt63520061:24000
Wildgen-Mccabe-Yreka families, complex, rolling stream terraces and flood plains64UCF74914947050jmmt63520061:24000
Bignell-Yreka complex, 35 to 60 percent slopes299F70617032461v5cfmt63520061:24000
Yreka gravelly loam, 15 to 35 percent slopes95E55517029931v538mt63520061:24000
Bignell, dry-Yreka, cool, complex, 15 to 35 percent slopes299E54117032451v5cdmt63520061:24000
Winkler-Perma-Yreka families, complex, low relief mountain slopes and ridges75UAF43214952850lhmt63520061:24000
Bignell-Yreka complex, cool, 35 to 60 percent slopes399F42917029471v51smt63520061:24000
Yreka-Winkler-Elvick families, complex, moderately steep young moraines21UCF38214940150gdmt63520061:24000
Yreka gravelly loam, cool, 35 to 60 percent slopes195F36217029401v51kmt63520061:24000
Bignell-Yreka complex, cool, 15 to 35 percent slopes399E28217029461v51rmt63520061:24000
Bignell-Yreka complex, 15 to 35 percent slopes499E20117029661v52dmt63520061:24000
Bignell-Yreka complex, 8 to 15 percent slopes399D18117029451v51qmt63520061:24000
Bignell-Yreka-Crow complex, 15 to 35 percent slopes799E10917030111v53vmt63520061:24000
Bignell-Yreka complex, 15 to 35 percent slopes299E114051456524wkgmt64419951:24000
Yreka gravelly loam, 15 to 35 percent slopes95E106021459644wwjmt64419951:24000
Yreka gravelly loam, 35 to 60 percent slopes95F102331459654wwkmt64419951:24000
Bignell-Yreka complex, cool, 15 to 35 percent slopes399E78291457194wmmmt64419951:24000
Yreka gravelly loam, cool, 15 to 35 percent slopes195E76961455864whbmt64419951:24000
Bignell-Yreka complex, 35 to 60 percent slopes299F63901456534wkhmt64419951:24000
Yreka gravelly loam, cool, 35 to 60 percent slopes195F60301455874whcmt64419951:24000
Wildgen-Yreka gravelly loams, 8 to 25 percent slopes371E52611456944wltmt64419951:24000
Wildgen-Yreka gravelly loams, 2 to 8 percent slopes371C52001456934wlsmt64419951:24000
Bignell, cool-Yreka complex, 15 to 35 percent slopes499E49011457784wpjmt64419951:24000
Bignell-Yreka complex, cool, 35 to 60 percent slopes399F46601457204wmnmt64419951:24000
Yreka-Rock outcrop complex, 35 to 60 percent slopes995F36981459854wx6mt64419951:24000
Trapps-Yreka stony loams, 8 to 25 percent slopes198E30771455934whkmt64419951:24000
Bignell, cool-Yreka complex, 35 to 60 percent slopes499F29381457794wpkmt64419951:24000
Bignell-Yreka-Crow complex, 15 to 35 percent slopes799E25041458944wt8mt64419951:24000
Yreka-Rock outcrop complex, 15 to 35 percent slopes995E20361459844wx5mt64419951:24000
Bignell, cool-Yreka complex, 8 to 15 percent slopes499D7011457774wphmt64419951:24000
Yreka gravelly loam, 8 to 15 percent slopes95D6911459634wwhmt64419951:24000
Bignell-Yreka-Crow complex, 8 to 15 percent slopes799D4941458934wt7mt64419951:24000
Wildgen-Yreka gravelly loams, 25 to 50 percent slopes371F4241456954wlvmt64419951:24000
Lumpgulch-Yreka-Lick complex, 8 to 35 percent slopes383E179224278282mhc1mt64520131:12000
Lick-Lumpgulch-Yreka complex, 8 to 15 percent slopes383D64124278272mhc0mt64520131:12000
Yreka-Repkie-Curlew families, complex, moraines44B3262324238132mc5jmt64520131:12000
Yreka-Repkie-Curlew families, complex, moraines, extremely bouldery44B32422015037851gxmt64720071:24000
Lumpgulch-Yreka-Lick complex, 8 to 35 percent slopes383E22724871832ph3qmt64720071:24000
Lick-Lumpgulch-Yreka complex, 8 to 15 percent slopes383D924871822ph3pmt64720071:24000

Map of Series Extent

Approximate geographic distribution of the YREKA 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 .