Soil Data Explorer - MCWILLAR

Official Series Description

Lab Data Summary

Aggregate lab data for the MCWILLAR soil series. This aggregation is based on all pedons with a current taxon name of MCWILLAR, 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 MCWILLAR 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 MCWILLAR 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 MCWILLAR series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot (updated 2024-10-24), parsed OSD records (updated 2024-10-23) and snapshot of SC database (updated 2024-10-23).

Select annual climate data summaries for the MCWILLAR 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 2024-10-23).

Geomorphic description summaries for the MCWILLAR 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 2024-10-23).

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 MCWILLAR share the same family level classification in Soil Taxonomy. Source: parsed OSD records (updated 2024-10-23) and snapshot of the SC database (updated 2024-10-23).

Select annual climate data summaries for the MCWILLAR 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 2024-10-23).

There are insufficient data to create the annual climate figure.

Geomorphic description summaries for the MCWILLAR 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 2024-10-23).

There are insufficient data to create the 3D hills 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 MCWILLAR, 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 2024-10-23).

Block Diagrams

No block diagrams are available.

Map Units

Map units containing MCWILLAR 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
McWillar-Hugus-Goshawk families, complex, weakly weathered metasedimentary belt geology, mountain slopes, south aspects, brushy openings	474	4603	2397040	2lg9w	id670		1:24000
Gutridge-McWillar-Kingbolt complex, 30 to 60 percent slopes	7804CO	11815	3120669	1sghp	or607	2018	1:24000
Analulu-McWillar-Kingbolt complex, 30 to 60 percent slopes	1309CO	10357	3120698	2pf8z	or607	2018	1:24000
Analulu-McWillar-Vogel complex, 30 to 60 percent slopes	7758CO	8960	3120645	1sgfp	or607	2018	1:24000
Kingbolt-McWillar complex, 15 to 30 percent slopes	1342BO	6780	3120390	1qzf9	or607	2018	1:24000
Pasturecreek-McWillar-Analulu complex, 60 to 90 percent slopes	7805DO	3846	3120670	1sghq	or607	2018	1:24000
McWillar-Kingbolt complex, 15 to 30 percent slopes	7793BO	3127	3120661	1sghc	or607	2018	1:24000
Analulu-McWillar-Hondu complex, 30 to 60 percent slopes	7763CO	2844	3120321	2pgth	or607	2018	1:24000
McWillar-Analulu-Hondu complex, 30 to 60 percent slopes	7766CO	2666	3120261	1q6zv	or607	2018	1:24000
McWillar-Kingbolt complex, sandstone substratum, 15 to 30 percent slopes	2005BO	1991	3120419	1r00g	or607	2018	1:24000
Vogel-McWillar complex, 15 to 30 percent slopes	7765BO	1932	3120785	1v6m4	or607	2018	1:24000
McWillar-Kingbolt complex, 30 to 60 percent slopes	7793CO	1285	3120662	1sghf	or607	2018	1:24000
Analulu-Vogel-McWillar complex, sandstone substratum, 15 to 30 percent slopes	2002BO	1263	3120415	1r00b	or607	2018	1:24000
Kingbolt-McWillar complex, 0 to 15 percent slopes	7792AO	964	3120660	1sghb	or607	2018	1:24000
Kingbolt-Analulu-McWillar complex, sandstone substratum, 30 to 60 percent slope	2004CO	963	3120417	1r00d	or607	2018	1:24000
McWillar-Kingbolt complex, sandstone substratum, 30 to 60 percent slopes	2005CO	830	3120420	1r00h	or607	2018	1:24000
Kingbolt-Analulu-McWillar complex, 30 to 60 percent slopes	1341CO	677	3120389	1qzf8	or607	2018	1:24000
McWillar-Kingbolt complex, without serpentine, 0 to 15 percent slopes	7554AO	406	3120617	1sgbx	or607	2018	1:24000
Vogel-McWillar complex, 0 to 15 percent slopes	7765AO	400	3120651	1sgfy	or607	2018	1:24000
McWillar-Kingbolt complex, sandstone substratum, 0 to 15 percent slopes	2005AO	322	3120418	1r00f	or607	2018	1:24000
Analulu-McWillar complex, 15 to 30 percent slopes	1308BO	290	3120777	1v69y	or607	2018	1:24000
Gutridge-McWillar-Kingbolt complex, 0 to 30 percent slopes	7804NO	169	3120787	1v6m7	or607	2018	1:24000
Analulu-McWillar-Vogel complex, 30 to 60 percent slopes	7758CO	2132	3122429	1sgfp	or626	2018	1:24000
Gutridge-McWillar-Kingbolt complex, frost basin, 0 to 30 percent slopes	7804NF	186	3385458	2tz1h	or626	2018	1:24000
Kingbolt-McWillar complex, 0 to 15 percent slopes	7792AO	115	3122439	1sghb	or626	2018	1:24000
McWillar-Kingbolt complex, 15 to 30 percent slopes	7793BO	42	3385456	1sghc	or626	2018	1:24000
Analulu-McWillar-Kingbolt complex, 30 to 60 percent slopes	1309CO	4	3122465	2pf8z	or626	2018	1:24000
Analulu-McWillar-Vogel complex, 30 to 60 percent slopes	7758CO	568	3431905	1sgfp	or627		1:24000
Analulu-McWillar-Kingbolt complex, 30 to 60 percent slopes	1336CO	436	3429796	2pf8z	or627		1:24000
Kingbolt-McWillar complex, 15 to 30 percent slopes	1342BO	278	3429798	1qzf9	or627		1:24000
McWillar-Kingbolt complex, 15 to 30 percent slopes	7793BO	105	3429822	1sghc	or627		1:24000
Kingbolt-Analulu-McWillar complex, 30 to 60 percent slopes	1341CO	96	3429797	1qzf8	or627		1:24000
Kingbolt-McWillar complex, 0 to 15 percent slopes	7792AO	62	3429786	1sghb	or627		1:24000
McWillar-Analulu-Hondu complex, 30 to 60 percent slopes	7766CO	55	3437657	1q6zv	or627		1:24000
Vogel-McWillar complex, 15 to 30 percent slopes	7765BO	37	3429821	1v6m4	or627		1:24000
Analulu-McWillar-Kingbolt complex, 30 to 60 percent slopes	1309CO	934	2485424	2pf8z	or631	2018	1:24000
McWillar-Kingbolt complex, 15 to 30 percent slopes	7793BO	676	2486902	1sghc	or631	2018	1:24000
McWillar gravelly ashy silt loam, 30 to 60 percent slopes	7746CO	332	2437500	1sgf8	or631	2018	1:24000
Analulu-McWillar-Hondu complex, 30 to 60 percent slopes	7763CO	188	2486897	2pgth	or631	2018	1:24000
Kingbolt-McWillar complex, 15 to 30 percent slopes	1342BO	105	2486189	1qzf9	or631	2018	1:24000
Pasturecreek-McWillar-Analulu complex, 60 to 90 percent slopes	7805DO	60	2437506	1sghq	or631	2018	1:24000
Vogel-McWillar complex, 15 to 30 percent slopes	7765BO	10	2486899	1v6m4	or631	2018	1:24000
McWillar-Analulu-Hondu complex, 30 to 60 percent slopes	7766CO	3	2486900	1q6zv	or631	2018	1:24000
Analulu-Vogel-McWillar complex, sandstone substratum, 15 to 30 percent slopes	2002BO	415	3121514	1r00b	or648	1977	1:24000
McWillar-Kingbolt complex, sandstone substratum, 15 to 30 percent slopes	2005BO	318	3121517	1r00g	or648	1977	1:24000
McWillar-Kingbolt complex, sandstone substratum, 30 to 60 percent slopes	2005CO	90	3121518	1r00h	or648	1977	1:24000
Kingbolt-Analulu-McWillar complex, sandstone substratum, 30 to 60 percent slope	2004CO	53	3121516	1r00d	or648	1977	1:24000
Analulu-McWillar-Kingbolt complex, 30 to 60 percent slopes	1309CO	160	3121480	2pf8z	or667	1984	1:20000

Map of Series Extent

Approximate geographic distribution of the MCWILLAR 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 2024-10-30).