Soil Data Explorer - SOBRANTE

Official Series Description

Lab Data Summary

Aggregate lab data for the SOBRANTE soil series. This aggregation is based on all pedons with a current taxon name of SOBRANTE, 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 SOBRANTE were used in the calculation. Source: KSSL snapshot (updated 2020-03-13). 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
15	UCD5417021	54-CA-17-021x	SOBRANTE	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.0041237,-122.9217529
15	UCD6249001	62-CA-49-001x	SOBRANTE	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.7095222,-122.8176422
15	UCD6445143	64-CA-45-143x	Sobrante	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.5532417,-122.455101
18	UCD6604004	66-CA-04-004x	SOBRANTE	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.419323,-121.4249344
18	UCD6658012	66-CA-58-012	SOBRANTE	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.285965,-121.3640671
18	91P0412	90CA115002	Sobrante	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.2694435,-121.3022232

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the SOBRANTE 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 SOBRANTE series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot (updated 2024-02-21), parsed OSD records (updated 2023-10-02) and snapshot of SC database (updated 2023-10-02).

Select annual climate data summaries for the SOBRANTE 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 SOBRANTE 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 SOBRANTE share the same family level classification in Soil Taxonomy. Source: parsed OSD records (updated 2023-10-02) and snapshot of the SC database (updated 2023-10-02).

Select annual climate data summaries for the SOBRANTE 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 SOBRANTE 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 flats position figure.

Soil series sharing subgroup-level classification with SOBRANTE, 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

No block diagrams are available.

Map Units

Map units containing SOBRANTE 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
Sobrante-Guenoc-Hambright complex, 15 to 30 percent slopes	219	7318	459622	hf8j	ca033	1985	1:24000
Sobrante-Hambright-Guenoc complex, 30 to 50 percent slopes	220	3212	459623	hf8k	ca033	1985	1:24000
Sobrante-Guenoc-Hambright complex, 2 to 15 percent slopes	218	2488	459621	hf8h	ca033	1985	1:24000
Neice-Sobrante-Hambright complex, 30 to 75 percent slopes	182	2052	459585	hf7b	ca033	1985	1:24000
Neice-Sobrante-Hambright complex, 15 to 30 percent slopes	181	1943	459584	hf79	ca033	1985	1:24000
Sobrante-Collayomi-Whispering association, 30 to 50 percent slopes	217	1526	459620	hf8g	ca033	1985	1:24000
Aiken-Sobrante association, 5 to 15 percent slopes	101	1174	459504	hf4q	ca033	1985	1:24000
Sobrante-Collayomi-Whispering association, 15 to 30 percent slopes	216	515	459619	hf8f	ca033	1985	1:24000
Aiken-Sobrante association, 15 to 30 percent slopes	102	434	459505	hf4r	ca033	1985	1:24000
Sobrante loam, 30 to 50 percent slopes	179	15095	459003	hdmk	ca055	1974	1:24000
Sobrante loam, 5 to 30 percent slopes	178	3120	459002	hdmj	ca055	1974	1:24000
Sobrante-Hambright-Guenoc complex, 30 to 50 percent slopes	220l	435	813837	w9vt	ca055	1974	1:24000
Sobrante-Guenoc-Hambright complex, 15 to 30 percent slopes	219l	41	813836	w9vs	ca055	1974	1:24000
Sobrante loam, 5 to 30 percent slopes	178n	131	816881	wf10	ca095	1969	1:24000
Sobrante loam, 30 to 50 percent slopes	179n	96	456145	h9nc	ca095	1969	1:24000
Sobrante loam, 50 to 75 percent slopes	ShG	8777	459874	hfjn	ca097	1968	1:20000
Sobrante loam, 30 to 50 percent slopes	ShF	6566	459873	hfjm	ca097	1968	1:20000
Sobrante loam, 15 to 30 percent slopes	ShE	1648	459872	hfjl	ca097	1968	1:20000
Sobrante-Auburn gravelly loams, 8 to 15 percent slopes	114yu	204	767850	ts0c	ca612	2005	1:24000
Sobrante-Auburn loams, 8 to 15 percent slopes	111yu	159	767852	ts0f	ca612	2005	1:24000
Auburn-Sobrante-Rock outcrop, 30 to 50 percent slopes	119yu	53	767853	ts0g	ca612	2005	1:24000
Sobrante-Auburn complex, 3 to 8 percent slopes	110	21431	460384	hg23	ca618	1991	1:24000
Sobrante-Auburn complex, 8 to 15 percent slopes	111	8985	460386	hg25	ca618	1991	1:24000
Sobrante-Auburn complex, gravelly, 8 to 15 percent slopes	114	8515	460392	hg2c	ca618	1991	1:24000
Sobrante-Timbuctoo complex, 15 to 30 percent slopes	240	6275	460545	hg79	ca618	1991	1:24000
Sobrante-Auburn complex, gravelly, 15 to 30 percent slopes	115	5545	460394	hg2f	ca618	1991	1:24000
Sobrante-Timbuctoo complex, 30 to 50 percent slopes	241	5240	460546	hg7b	ca618	1991	1:24000
Sobrante gravelly loam, 8 to 15 percent slopes	236	3670	460541	hg75	ca618	1991	1:24000
Auburn-Sobrante-Rock outcrop complex, 15 to 30 percent slopes	118	3500	460400	hg2m	ca618	1991	1:24000
Sobrante-Auburn complex, gravelly, 3 to 8 percent slopes	113	2790	460390	hg29	ca618	1991	1:24000
Sobrante-Auburn complex, 15 to 30 percent slopes	112	2535	460388	hg27	ca618	1991	1:24000
Auburn-Sobrante complex, gravelly, 30 to 50 percent slopes	116	2395	460396	hg2h	ca618	1991	1:24000
Sobrante gravelly loam, 15 to 30 percent slopes	237	2130	460542	hg76	ca618	1991	1:24000
Auburn-Sobrante-Rock outcrop complex, 50 to 75 percent slopes	120	2000	460404	hg2r	ca618	1991	1:24000
Auburn-Sobrante-Rock outcrop complex, 30 to 50 percent slopes	119	1450	460402	hg2p	ca618	1991	1:24000
Sobrante-Rock outcrop complex, 30 to 50 percent slopes	238	1380	460543	hg77	ca618	1991	1:24000
Auburn-Sobrante-Rock outcrop complex, 8 to 15 percent slopes	117	800	460398	hg2k	ca618	1991	1:24000
Sobrante gravelly loam, 3 to 8 percent slopes	235	765	460540	hg74	ca618	1991	1:24000
Sobrante-Timbuctoo complex, 8 to 15 percent slopes	239	705	460544	hg78	ca618	1991	1:24000
Sobrante-Rock outcrop complex, 2 to 30 percent slopes	SrD	8912	460256	hfxz	ca619	1970	1:24000
Sobrante-Rock outcrop complex, 30 to 50 percent slopes	SrE	4385	460257	hfy0	ca619	1970	1:24000
Sobrante loam, 2 to 15 percent slopes	SoC	3345	460254	hfxx	ca619	1970	1:24000
Sobrante loam, 15 to 30 percent slopes	SoD	1752	460255	hfxy	ca619	1970	1:24000
Auburn-Sobrante-Rock outcrop complex, 50 to 75 percent slopes	120	320	640467	phg7	ca619	1970	1:24000
Sobrante-Auburn complex, 15 to 30 percent slopes	112	250	640465	phg5	ca619	1970	1:24000
Auburn-Sobrante complex, gravelly, 15 to 30 percent slopes	115	250	640466	phg6	ca619	1970	1:24000
Sobrante-Auburn complex, 8 to 15 percent slopes	111	250	640464	phg4	ca619	1970	1:24000
Sobrante-Auburn complex, 3 to 8 percent slopes	110	30	640463	phg3	ca619	1970	1:24000
Auburn-Sobrante-Rock outcrop complex, 2 to 30 percent slopes	119	10050	460283	hfyv	ca620	1975	1:24000
Auburn-Sobrante silt loams, 15 to 30 percent slopes	118	8500	460282	hfyt	ca620	1975	1:24000
Auburn-Sobrante-Rock outcrop complex, 30 to 50 percent slopes	120	7210	460284	hfyw	ca620	1975	1:24000
Auburn-Sobrante-Rock outcrop complex, 50 to 70 percent slopes	121	4050	460285	hfyx	ca620	1975	1:24000
Sobrante silt loam, 2 to 15 percent slopes	191	1250	460355	hg15	ca620	1975	1:24000
Sobrante silt loam, 3 to 15 percent slopes	SuC	4870	462297	hj1t	ca624	1968	1:20000
Sobrante very rocky silt loam, 3 to 30 percent slopes	SwD	960	462299	hj1w	ca624	1968	1:20000
Sobrante silt loam, 15 to 30 percent slopes	SuD	591	462298	hj1v	ca624	1968	1:20000

Map of Series Extent

Approximate geographic distribution of the SOBRANTE 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).