Soil Data Explorer - WITHERELL

Official Series Description

Lab Data Summary

Aggregate lab data for the WITHERELL soil series. This aggregation is based on all pedons with a current taxon name of WITHERELL, 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 WITHERELL were used in the calculation. Source: KSSL snapshot (updated 2020-03-18). 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 WITHERELL 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.

Sibling Summary

Siblings are those soil series that occur together in map units, in this case with the WITHERELL series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot (updated 2024-02-21), parsed OSD records (updated 2023-10-06) and snapshot of SC database (updated 2023-10-02).

Select annual climate data summaries for the WITHERELL series and siblings. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data (updated 2023-10-09).

Geomorphic description summaries for the WITHERELL 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 (updated 2023-10-04).

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

There are insufficient data to create the 3D flats position figure.

Competing Series

Soil series competing with WITHERELL share the same family level classification in Soil Taxonomy. Source: parsed OSD records (updated 2023-10-06) and snapshot of the SC database (updated 2023-10-02).

Select annual climate data summaries for the WITHERELL series and competing. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data (updated 2023-10-09).

There are insufficient data to create the annual climate figure.

Geomorphic description summaries for the WITHERELL 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 (updated 2023-10-04).

There are insufficient data to create the 2D hillslope position figure.

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

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

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

There are insufficient data to create the 3D flats position figure.

Soil series sharing subgroup-level classification with WITHERELL, 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 (updated 2023-10-02).

Block Diagrams

Click a link below to display the diagram. Note that these diagrams may be from multiple survey areas.

1. CA-2011-05-27-04 | Mendocino County, Eastern Part, and Trinity County, Southwestern Part - 1991

   Pattern of terraces in Ukiah Valley and adjacent mountains (Soil Survey of Mendocino County, Eastern Part, and Trinity County, Southwestern Part, California; 1991).

Map Units

Map units containing WITHERELL 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
Hopland-Witherell-Ashokawna complex, 30 to 50 percent slopes, MLRA 5	149em		1607719	2w91t	ca097	1968	1:20000
Ashokawna-Garcia-Witherell complex, 15 to 50 percent slopes	205wm		1607464	1qypp	ca097	1968	1:20000
Bearwallow-Hellman-Witherell complex, 30 to 50 percent slopes	105em		1607618	1qyvn	ca097	1968	1:20000
Ashokawna-Witherell complex, 15 to 50 percent slopes, MLRA 5	201em		1607627	2w91r	ca097	1968	1:20000
Ashokawna-Witherell complex, 50 to 75 percent slopes, MLRA 5	202em		1607629	2w91q	ca097	1968	1:20000
Witherell-Hopland-Ashokawna complex, 50 to 75 percent slopes, high ffd	211em		1607630	2xkbs	ca097	1968	1:20000
Yorkville-Ashokawna Witherell complex, 30 to 50 percent slopes, MLRA 5	233em		1607636	2w916	ca097	1968	1:20000
Dryfield-Yorknorth-Witherell complex, 5 to 30 percent slopes	667	2994	2747684	v6lh	ca600	2017	1:24000
Yorknorth-Witherell complex, 15 to 30 percent slopes	655	1869	2747679	hs85	ca600	2017	1:24000
Yorknorth-Witherell complex, 30 to 50 percent slopes	662	1820	2747682	v6lg	ca600	2017	1:24000
Dryfield-Yorknorth-Witherell complex, 30 to 50 percent slopes	668	728	2747685	2lgsj	ca600	2017	1:24000
Yorknorth-Witherell complex, 2 to 15 percent slopes	657	48	2747680	hs87	ca600	2017	1:24000
Yorknorth-Witherell complex, 15 to 30 percent slopes	655	22002	470182	hs85	ca601	2011	1:24000
Yorknorth-Witherell complex, 30 to 50 percent slopes	662	13344	780904	v6lg	ca601	2011	1:24000
Dryfield-Yorknorth-Witherell complex, 5 to 30 percent slopes	667	5817	780905	v6lh	ca601	2011	1:24000
Dryfield-Yorknorth-Witherell complex, 30 to 50 percent slopes	668	2827	2397494	2lgsj	ca601	2011	1:24000
Yorknorth-Witherell complex, 2 to 15 percent slopes	657	683	470184	hs87	ca601	2011	1:24000
Yorknorth-Witherell complex, 30 to 50 percent slopes	662	1466	1451950	v6lg	ca605	2013	1:24000
Yorknorth-Witherell complex, 15 to 30 percent slopes	655	747	2670255	hs85	ca605	2013	1:24000
Yorkville-Ashokawna Witherell complex, 30 to 50 percent slopes, MLRA 5	233	59203	461118	2w916	ca687	1985	1:24000
Shortyork-Yorkville-Witherell complex, 30 to 50 percent slopes, MLRA 5	200	35770	461085	2w914	ca687	1985	1:24000
Hopland-Witherell-Ashokawna complex, 30 to 50 percent slopes, MLRA 5	149	29920	461034	2w91t	ca687	1985	1:24000
Bearwallow-Hellman-Witherell complex, 30 to 50 percent slopes	105	14263	460990	hgpn	ca687	1985	1:24000
Shortyork-Yorkville-Witherell complex, 15 to 30 percent slopes, MLRA 5	199	13021	461084	2w91s	ca687	1985	1:24000
Yorkville-Ashokawna Witherell complex, 15 to 30 percent slopes, MLRA 5	232	11036	461117	2w915	ca687	1985	1:24000
Ashokawna-Witherell complex, 50 to 75 percent slopes, MLRA 5	202	7195	461087	2w91q	ca687	1985	1:24000
Witherell-Hopland-Ashokawna complex, 50 to 75 percent slopes, high ffd	211	5189	461096	2xkbs	ca687	1985	1:24000
Witherell-Hopland-Ashokawna complex, 50 to 75 percent slopes, low ffd	2110	4557	3115304	2xkbr	ca687	1985	1:24000
Shortyork-Witherell-Updegraff complex, 50 to 75 percent slopes	197	4274	461082	hgsm	ca687	1985	1:24000
Shortyork-Yorkville-Witherell complex, 9 to 15 percent slopes, MLRA 5	198	3488	461083	2w913	ca687	1985	1:24000
Ashokawna-Witherell complex, 15 to 50 percent slopes, MLRA 5	201	3035	461086	2w91r	ca687	1985	1:24000
Shortyork-Tyson-Witherell complex, 30 to 50 percent slopes, MLRA 5	196	2185	461081	2wgq3	ca687	1985	1:24000
Yorknorth-Witherell complex, 15 to 30 percent slopes	655sh	2176	2600436	hs85	ca687	1985	1:24000
Hopland-Witherell-Ashokawnacomplex, 15 to 30 percent slopes	148	1994	461033	hgr1	ca687	1985	1:24000
Yorknorth-Witherell complex, 30 to 50 percent slopes	662sh	1497	2600438	v6lg	ca687	1985	1:24000
Yorknorth-Witherell complex, 2 to 15 percent slopes	657sh	31	2600437	hs87	ca687	1985	1:24000
Shortyork-Yorkville-Witherell complex, 15 to 30 percent slopes, MLRA 5	202	9860	465781	2w91s	ca694	1993	1:24000
Ashokawna-Garcia-Witherell complex, 50 to 75 percent slopes	206	9037	465785	hmpb	ca694	1993	1:24000
Yorkville-Ashokawna Witherell complex, 30 to 50 percent slopes, MLRA 5	243	8947	465831	2w916	ca694	1993	1:24000
Ashokawna-Garcia-Witherell complex, 15 to 50 percent slopes	205	8928	465784	hmp9	ca694	1993	1:24000
Hopland-Witherell-Ashokawna complex, 30 to 50 percent slopes, MLRA 5	169	7738	465738	2w91t	ca694	1993	1:24000
Ashokawna-Witherell complex, 15 to 50 percent slopes, MLRA 5	207	7176	465786	2w91r	ca694	1993	1:24000
Shortyork-Yorkville-Witherell complex, 30 to 50 percent slopes, MLRA 5	203	4093	465782	2w914	ca694	1993	1:24000
Yorkville-Ashokawna Witherell complex, 15 to 30 percent slopes, MLRA 5	242	3221	465830	2w915	ca694	1993	1:24000
Shortyork-Yorkville-Witherell complex, 9 to 15 percent slopes, MLRA 5	201	2182	465780	2w913	ca694	1993	1:24000
Witherell-Hopland-Ashokawna complex, 50 to 75 percent slopes, high ffd	228	978	465813	2xkbs	ca694	1993	1:24000
Shortyork-Tyson-Witherell complex, 30 to 50 percent slopes, MLRA 5	200	539	465779	2wgq3	ca694	1993	1:24000
Ashokawna-Witherell complex, 50 to 75 percent slopes, MLRA 5	208	469	465787	2w91q	ca694	1993	1:24000
Yorknorth-Witherell complex, 15 to 30 percent slopes	655sh	63	2495501	hs85	ca694	1993	1:24000
Shortyork-Yorkville-Witherell complex, 15 to 30 percent slopes, MLRA 5	199em	245	1701146	2w91s	ca701	1984	1:24000
Shortyork-Yorkville-Witherell complex, 30 to 50 percent slopes, MLRA 5	200em	228	1701147	2w914	ca701	1984	1:24000
Hopland-Witherell-Ashokawna complex, 30 to 50 percent slopes, MLRA 5	149em	58	1701139	2w91t	ca701	1984	1:24000
Yorkville-Ashokawna Witherell complex, 15 to 30 percent slopes, MLRA 5	232em	34	1701151	2w915	ca701	1984	1:24000
Yorknorth-Witherell complex, 30 to 50 percent slopes	662sh	23	2514186	v6lg	ca701	1984	1:24000
Ashokawna-Witherell complex, 50 to 75 percent slopes, MLRA 5	202em	2	1701148	2w91q	ca701	1984	1:24000
Shortyork-Yorkville-Witherell complex, 30 to 50 percent slopes, MLRA 5	200me	2798	2747856	2w914	ca709	2010	1:24000
Yorkville-Ashokawna Witherell complex, 30 to 50 percent slopes, MLRA 5	233me	570	2747864	2w916	ca709	2010	1:24000
Shortyork-Yorkville-Witherell complex, 15 to 30 percent slopes, MLRA 5	199me	175	2747855	2w91s	ca709	2010	1:24000
Shortyork-Tyson-Witherell complex, 30 to 50 percent slopes, MLRA 5	196me	44	2747854	2wgq3	ca709	2010	1:24000
Ashokawna-Witherell complex, 50 to 75 percent slopes, MLRA 5	202me	8	2747857	2w91q	ca709	2010	1:24000

Map of Series Extent

Approximate geographic distribution of the WITHERELL 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 (updated 2023-10-04).