Soil Data Explorer - SONOMA

Official Series Description

Lab Data Summary

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

Pedons used in the lab summary:

MLRA	Lab ID	Pedon ID	Taxonname	CI	NSSL / NASIS Reports	Link To SoilWeb GMap
24	83P0870	83NV015006	Sonoma	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.7647209,-117.0147247
27	40A3207	1956NV027001	Sonoma	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.1438889,-118.4686111
27	40A3220	1956NV027002	SONOMA	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.1577778,-118.4555556

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the SONOMA 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 SONOMA 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 SONOMA 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 SONOMA 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 mountains figure.

Competing Series

Soil series competing with SONOMA 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 SONOMA 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).

Geomorphic description summaries for the SONOMA 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 3D hills figure.

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

Soil series sharing subgroup-level classification with SONOMA, 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. NV-2012-05-09-10 | Lander County, North Part - May 1992

   Typical relationship of general soil map units and landscapes: Sonoma-Rixie-Paranat (3); Orovada-Broyles-Shabliss (7); Buffaran-Allor-Chiara (11); Bioya-Chiara-Cortez (12); Robson-Akerue-Buffaran (16); Sumine-Chen-Rock outcrop (19); and Quarz-Walti-Glean (21) (Soil Survey of Lander County, Nevada, North Part; May 1992).

2. NV-2012-05-09-14 | Lander County, South Part - November 1991

   General soil map units representative of those on a semibolson that is an externally drained intermontane basin (Soil Survey of Lander County, Nevada, South Part; November 1991).

3. NV-2012-05-09-21 | Pershing County, East Part - May 1994

   General soil map units representative of those on a semibolson that is an externally drained intermontane basin. These units are 4—Humboldt-Sonoma-Sondoa; 6—Jerval-Dun Glen-Tenabo; 7—Chiara-Cortez-Orovada; 8—Jerval-Misad-Knoss; 9—Theon-Singatse; 10—Trunk-Burrita-Hoot; and 11—Reluctan-Roca-Iver (Soil Survey of Pershing County, Nevada, East Part; May 1994).

Map Units

Map units containing SONOMA 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
Sonoma-Poole families complex, 0 to 2 percent slopes.	377	3934	471490	htmc	ca732	1998	1:24000
Sonoma-Poole families complex, 0 to 2 percent slopes.	377iw	21	488498	htmc	ca802	1996	1:24000
Sonoma silt loam, drained	161	2750	477072	j0ff	nv763	1986	1:24000
Sonoma-Sonoma, occasionally flooded association	183	3925	474923	hy63	nv765	1986	1:24000
Sonoma-Deleplain-Ocala association	187	3010	474926	hy66	nv765	1986	1:24000
Sonoma-Devilsgait-Sonoma, strongly saline-Sodic association	180	2680	474921	hy61	nv765	1986	1:24000
Sonoma-Devilsgait-Sonoma, occasionally flooded association	182	2520	474922	hy62	nv765	1986	1:24000
Kelk-Sonoma association	580	2005	475058	hybg	nv765	1986	1:24000
Sonoma-Ocala variant association	185	1245	474924	hy64	nv765	1986	1:24000
Sonoma, frequently flooded-Devilsgait-Sonoma association	164	820	2633855	2rgmx	nv765	1986	1:24000
Sonoma-Devilsgait association	0310	722	2633874	2rgnh	nv765	1986	1:24000
Kolda-Duffer-Sonoma association	1620	1650	478670	j22z	nv766	1994	1:24000
Sonoma-Kelk association	311	554	478294	j1pv	nv766	1994	1:24000
Sonoma-Devilsgait association	310	344	478293	j1pt	nv766	1994	1:24000
Sonoma, frequently flooded-Devilsgait-Sonoma association	163	8593	478760	j25w	nv767	1986	1:24000
Kelk-Sonoma association	149	3818	478753	j25n	nv767	1986	1:24000
Sonoma-Sonoma, rarely flooded association	161	3282	478758	j25t	nv767	1986	1:24000
Devilsgait-Sonoma association	443	3019	478911	j2br	nv767	1986	1:24000
Ocala-Sonoma association	259	2749	478859	j292	nv767	1986	1:24000
Sonoma-Hussa association	162	2339	478759	j25v	nv767	1986	1:24000
Sonoma variant-Halleck association	294	2030	478868	j29c	nv767	1986	1:24000
Sonoma-Kelk association	167	1200	478766	j262	nv767	1986	1:24000
Sonoma-Devilsgait association	166	1177	478762	j25y	nv767	1986	1:24000
Wendane-Sonoma-Valmy association	1146	9115	479041	j2gy	nv768	1985	1:63360
Ocala-Sonoma-Paranat association	683	8880	479296	j2r5	nv768	1985	1:63360
Sonoma-Paranat association	998	8430	479315	j2rs	nv768	1985	1:63360
Sonoma-Wendane-Paranat association	999	4420	479316	j2rt	nv768	1985	1:63360
Sonoma-Wendane association	990	3980	479314	j2rr	nv768	1985	1:63360
Yobe-Sonoma association	1411	6543	475213	hyhg	nv769	1986	1:24000
Sonoma silt loam, occasionally flooded, strongly saline-sodic	561	3988	475279	hykl	nv769	1986	1:24000
Sonoma silt loam	4200	2021	476973	j0b7	nv774	1985	1:24000
Sonoma silty clay loam, frequently flooded	567	6786	2633951	2rhg7	nv775	1985	1:24000
Batan-Wendane-Sonoma association	166	6460	479488	j2yc	nv775	1985	1:24000
Wendane-Sonoma-Valmy association	1146	1955	479419	j2w4	nv775	1985	1:24000
Sonoma silty clay loam, strongly saline, occasionally flooded	995	1875	479754	j36y	nv775	1985	1:24000
Sonoma silty clay loam, drained, strongly saline, occasionally flooded	994	1325	479753	j36x	nv775	1985	1:24000
Argenta-Sonoma complex	152	1220	479477	j2y0	nv775	1985	1:24000
Prida-Sonoma silty clay loams	774	955	479717	j35r	nv775	1985	1:24000
Sonoma silt loam, strongly saline, rarely flooded	992	955	479751	j36v	nv775	1985	1:24000
Sonoma silty clay loam, strongly saline	563	421	2633950	2rhg6	nv775	1985	1:24000
Sonoma silt loam, drained	990	335	479749	j36s	nv775	1985	1:24000
Sonoma silty clay loam, strongly saline, frequently flooded	997	305	479756	j370	nv775	1985	1:24000
Sonoma, strongly saline-Sonoma complex	996	305	479755	j36z	nv775	1985	1:24000
Sonoma silt loam, drained, slightly saline	991	280	479750	j36t	nv775	1985	1:24000
Sonoma variant silt loam	200	120	479512	j2z4	nv775	1985	1:24000
Sonoma silty clay loam, strongly saline, frequently flooded	997	175	2634062	2rn30	nv776	1983	1:63360
Sonoma variant silt loam*	200	65	479793	j386	nv776	1983	1:63360
Sonoma silt loam, strongly saline 1/	561	13408	475796	hz38	nv777	1993	1:24000
Sonoma-Paranat complex 1/	566	7364	475800	hz3d	nv777	1993	1:24000
Sonoma silty clay loam, occasionally flooded 1/	562	6978	475797	hz39	nv777	1993	1:24000
Wendane-Sonoma complex 1/	1104	5507	475403	hypl	nv777	1993	1:24000
Sonoma silty clay loam, strongly saline 1/	563	1305	475798	hz3b	nv777	1993	1:24000
Sonoma silt loam, drained 1/	564	1152	475799	hz3c	nv777	1993	1:24000
Sonoma silty clay loam, frequently flooded 1/	567	586	475801	hz3f	nv777	1993	1:24000
Sonoma silt loam, 0 to 2 percent slopes	414	427	3270871	2v4zr	nv777	1993	1:24000
Sonoma-Kelk association	1020	4442	480137	j3m9	nv780	1990	1:24000
Sonoma silt loam, 0 to 2 percent slopes	414	4328	2844654	2v4zr	or644	2021	1:24000
Wabuska-Sonoma complex, 0 to 2 percent slopes	409	3914	2844632	2v4z0	or644	2021	1:24000
Sonoma-Alvodest complex, 0 to 3 percent slopes	411	2289	2844634	2v4z2	or644	2021	1:24000

Map of Series Extent

Approximate geographic distribution of the SONOMA 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).