Soil Data Explorer - BALCOM

Official Series Description

Lab Data Summary

Aggregate lab data for the BALCOM soil series. This aggregation is based on all pedons with a current taxon name of BALCOM, 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 BALCOM were used in the calculation. Source: KSSL snapshot (updated 2020-03-13). 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 BALCOM 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 BALCOM 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 BALCOM 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 BALCOM 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).

Competing Series

Soil series competing with BALCOM 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 BALCOM 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 BALCOM 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 BALCOM, 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-2012-05-08-20 | San Luis Obispo County, Carrizo Plain Area - 2003

   Idealized cross-section of the northwestern part of the survey area, showing soil-landscape-geology relationships (Soil Survey of San Luis Obispo County, California, Carrizo Plain Area; 2003).

Map Units

Map units containing BALCOM 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
Goldeagle-Positas-Balcom complex, 30 to 75 percent slopes	275	32913	461618	hhbx	ca011	1999	1:24000
Balcom-Ayar complex, 30 to 50 percent slopes	271	907	461617	hhbw	ca011	1999	1:24000
Balcom-Ayar complex, 15 to 30 percent slopes	270	817	461616	hhbv	ca011	1999	1:24000
Sehorn-Balcom complex, 15 to 30 percent slopes, eroded	SmE2	17804	459279	hdxg	ca113	1968	1:20000
Balcom-Dibble complex, 30 to 50 percent slopes, eroded	BdF2	16415	459212	hdv9	ca113	1968	1:20000
Sehorn-Balcom complex, 2 to 15 percent slopes	SmD	16127	459278	hdxf	ca113	1968	1:20000
Balcom silty clay loam, 30 to 50 percent slopes, eroded	BaF2	12393	459210	hdv7	ca113	1968	1:20000
Sehorn-Balcom complex, 30 to 50 percent slopes, eroded	SmF2	11232	459280	hdxh	ca113	1968	1:20000
Balcom silty clay loam, 15 to 30 percent slopes, eroded	BaE2	5195	459209	hdv6	ca113	1968	1:20000
Balcom silty clay loam, 5 to 15 percent slopes, severely eroded	BaD3	312	459208	hdv5	ca113	1968	1:20000
Balcom silty clay loam, 50 to 75 percent slopes, severely eroded	BaG3	264	459211	hdv8	ca113	1968	1:20000
Balcom-Calleguas complex, 50 to 75 percent slopes	113	26000	457216	hbrx	ca665	1977	1:24000
Balcom-Nacimiento association, moderately steep	114	24500	457217	hbry	ca665	1977	1:24000
Balcom-Nacimiento association,steep	115	13720	457218	hbrz	ca665	1977	1:24000
Balcom variant clay loam, 5 to 30 percent slopes	114	1171	463659	hkgr	ca666	1983	1:24000
Balcom-Nacimiento complex, 30 to 50 percent slopes	102	30065	458427	hd0z	ca667	2003	1:24000
Balcom-Nacimiento complex, 15 to 30 percent slopes	101	20785	458426	hd0y	ca667	2003	1:24000
Balcom loam, 50 to 75 percent slopes	100	8930	458425	hd0x	ca667	2003	1:24000
Calleguas-Balcom complex, 15 to 30 percent slopes	112	3105	458431	hd13	ca667	2003	1:24000
Balcom-Nacimiento complex, 9 to 15 percent slopes	103	600	458428	hd10	ca667	2003	1:24000
Castaic-Balcom complex, 30 to 50 percent slopes, eroded	CfF2	16377	457676	hc7r	ca674	1968	1:24000
Castaic-Balcom complex, 50 to 65 percent slopes, eroded	CfG2	3731	457677	hc7s	ca674	1968	1:24000
Castaic-Balcom complex, 15 to 30 percent slopes	CfE	1040	457675	hc7q	ca674	1968	1:24000
Castaic-Balcom complex, 9 to 15 percent slopes, eroded	CfD2	348	457674	hc7p	ca674	1968	1:24000
Castaic-Balcom silty clay loams, 30 to 50 percent slopes, eroded	CmF2	12992	457817	hcd9	ca675	1968	1:24000
Castaic-Balcom silty clay loams, 30 to 50 percent slopes	CmF	9309	457816	hcd8	ca675	1968	1:24000
Castaic-Balcom silty clay loams, 15 to 30 percent slopes	CmE	2868	457815	hcd7	ca675	1968	1:24000
Castaic-Balcom silty clay loams, 50 to 65 percent slopes, eroded	CmG2	2670	457818	hcdb	ca675	1968	1:24000
Castaic-Balcom silty clay loams, 9 to 15 percent slopes	CmD	252	457814	hcd6	ca675	1968	1:24000
Urban land-Balcom-Xerorthents, landscaped complex, 10 to 60 percent slopes	1249LA		2911687	2sthx	ca676	1975	1:24000
Xerorthents-Urban land-Balcom complex, 5 to 15 percent slopes	139	7095	456041	h9k0	ca676	1975	1:24000
Balcom silty clay loam, 30 to 50 percent slopes, MLRA 20	105	4652	456007	2tz0v	ca676	1975	1:24000
Gazos-Balcom complex, 30 to 50 percent slopes	120	3625	456022	h9jd	ca676	1975	1:24000
Xerorthents-Urban land-Balcom complex, 15 to 30 percent slopes	140	2946	456042	h9k1	ca676	1975	1:24000
Balcom silty clay loam, 15 to 30 percent slopes, MLRA 20	104	1450	456006	2tz0s	ca676	1975	1:24000
Balcom silty clay loam, 9 to 15 percent slopes	103	615	456005	h9hv	ca676	1975	1:24000
Xerorthents-Urban land-Balcom complex, 0 to 15 percent slopes	531	575	735089	snxk	ca676	1975	1:24000
Balcom silty clay loam, 50 to 75 percent slopes, MLRA 20	106	425	456008	2tz0t	ca676	1975	1:24000
Balcom-Balcom, dark surface association, 30 to 75 percent slopes	503	280	735085	snxf	ca676	1975	1:24000
Xerorthents-Urban land-Balcom complex, 0 to 30 percent slopes	530	35	735088	snxj	ca676	1975	1:24000
Balcom clay loam, 30 to 50 percent slopes	113	3080	458014	hcln	ca678	1974	1:24000
Balcom clay loam, 15 to 30 percent slopes	112	2475	458013	hclm	ca678	1974	1:24000
Bosanko-Balcom complex, 15 to 30 percent slopes	129	2425	458030	hcm5	ca678	1974	1:24000
Balcom clay loam, 9 to 15 percent slopes	111	830	458012	hcll	ca678	1974	1:24000
Balcom-Rock outcrop complex, 15 to 50 percent slopes	114	710	458015	hclp	ca678	1974	1:24000
Bosanko-Balcom complex, 30 to 50 percent slopes	130	680	458031	hcm6	ca678	1974	1:24000
Balcom-Rock outcrop complex, 50 to 75 percent slopes	610	4495	466434	hnc8	ca691	2008	1:24000
Urban land-Balcom-Xerorthents, landscaped complex, 10 to 60 percent slopes	1249LA		2911675	2sthx	ca692	2001	1:24000
Castaic-Balcom complex, 30 to 50 percent slopes, eroded	CfF2vt		3003614	hc7r	ca692	2001	1:24000
Xerorthents-Urban land-Balcom complex, 0 to 15 percent slopes	531	2520	470000	hs29	ca692	2001	1:24000
Balcom silty clay loam, 30 to 50 percent slopes, MLRA 20	500	1760	469993	2tz0v	ca692	2001	1:24000
Balcom-Balcom, dark surface association, 30 to 75 percent slopes	503	960	469994	hs23	ca692	2001	1:24000
Xerorthents-Urban land-Balcom complex, 0 to 30 percent slopes	530	140	469999	hs28	ca692	2001	1:24000
Urban land-Balcom-Xerorthents, landscaped complex, 10 to 60 percent slopes	1249	1365	2747693	2sthx	ca696	2016	1:24000
Balcom-Nacimiento, warm complex, 30 to 75 percent slopes	1149	746	2670254	2rshs	ca696	2016	1:24000
Balcom clay loam, 15 to 30 percent slopes	112oc	39	2911732	hclm	ca696	2016	1:24000
Balcom-Nacimiento complex, 30 to 50 percent slopes	102cp	37	1412860	1jf64	ca772	1981	1:24000

Map of Series Extent

Approximate geographic distribution of the BALCOM 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).