Soil Data Explorer - HERM

Official Series Description

Lab Data Summary

Aggregate lab data for the HERM soil series. This aggregation is based on all pedons with a current taxon name of HERM, 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 HERM 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 HERM 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 HERM 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 HERM 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 HERM 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 HERM 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 HERM 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 HERM 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).

Soil series sharing subgroup-level classification with HERM, 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. NM-2012-02-14-09 | Jicarilla Apache Nation, Parts of Rio Arriba and Sandoval Counties - 2004

   Conceptual diagram of the major soil and landscape positions of the north-central portion of the survey area from Archuleta Mesa south (Soil Survey of Jicarilla Apache Nation, New Mexico, Parts of Rio Arriba and Sandoval Counties; 2004).

Map Units

Map units containing HERM 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
Herm family, 5 to 25 percent slopes, very stony	Hm	241	95470	36bp	co626	1974	1:24000
Herm family, 5 to 25 percent slopes	532M	3911	509868	k3kc	co636	2011	1:24000
Herm-Fughes complex, 10 to 20 percent slopes, extremely bouldery	98	12	3106843	jpg8	co648		1:24000
Herm-Kolob families complex, 40 to 65 percent slopes	333C	7854	1414938	1jhc5	co654		1:24000
Herm-Fughes families complex, 5 to 40 percent slopes, eroded	430B	3442	1415024	1jhfy	co654		1:24000
Cerro-Herm complex, 15 to 40 percent slopes	GM117	87	3312836	30gvc	co654		1:24000
Herm-Fughes-Kolob family complex, 25 to 40 percent slopes	158	34861	509517	k361	co660	1994	1:24000
Cerro-Herm complex, 15 to 40 percent slopes	117	5276	509464	k34b	co660	1994	1:24000
Weed-Herm complex, 0 to 25 percent slopes	195	3845	509565	k37l	co660	1994	1:24000
Cerro-Herm complex, 0 to 15 percent slopes	116	1561	509463	k349	co660	1994	1:24000
Herm-Kolob families complex, 40 to 65 percent slopes	333C	313	3176923	1jhc5	co661	1968	1:31680
Herm family, clay loam, cool, 3 to 12 percent slopes	C2-V	14422	1710631	1vf1n	co668	2018	1:24000
Herm family, clay loam, 3 to 12 percent slopes	C2-CD	4976	737743	srp5	co668	2018	1:24000
Herm family, clay loam, 12 to 25 percent slopes	C2-E	3493	737742	srp4	co668	2018	1:24000
Herm family-Dulcepeak, stony complex, 3 to 25 percent slopes	M5-D	1962	499282	jrjw	co668	2018	1:24000
Herm family-Echolake complex, 3 to 10 percent slopes	C3-CD	1687	737744	srp6	co668	2018	1:24000
Herm family-Echolake, cool complex, 3 to 10 percent slopes	C3-V	1400	1711901	1vgcm	co668	2018	1:24000
Herm family, clay loam, warm, 12 to 25 percent slopes	C2-EV	414	1868376	20q66	co668	2018	1:24000
Herm loam, 6 to 25 percent slopes	37	8790	58297	1ynk	co669	1982	1:24000
Herm variant clay loam, 2 to 8 percent slopes	38	802	58298	1ynl	co669	1982	1:24000
Herm loam, 3 to 25 percent slopes	40	960	614331	nm84	co670	2005	1:24000
Herm very cobbly loam, 15 to 40 percent slopes	50	2532	57660	1y00	co671	1997	1:24000
Fughes-Herm complex, 1 to 35 percent slopes	40	1110	57643	2wqy8	co671	1997	1:24000
Herm-Pagoda complex, 0 to 15 percent slopes	51	468	57667	1y07	co671	1997	1:24000
Herm loam, 6 to 25 percent slopes	49	12	57654	1xzt	co671	1997	1:24000
Burnson-Herm complex, 15 to 30 percent slopes	16	6	57604	1xy6	co671	1997	1:24000
Herm-Pagoda complex, 0 to 15 percent slopes	508	9668	507188	k0rx	co672	2003	1:24000
Burnson-Herm complex, 15 to 30 percent slopes	553	3216	507200	k0s9	co672	2003	1:24000
Fughes-Herm complex, 1 to 35 percent slopes	58	3034	737693	2wqy8	co672	2003	1:24000
Fughes-Herm complex, 25 to 45 percent slopes	59	588	737694	srml	co672	2003	1:24000
Herm loam, 6 to 25 percent slopes	937	113	507299	k0wh	co672	2003	1:24000
Herm-Fughes-Godding complex, 5 to 45 percent slopes	122	600	505174	jyny	co674	1998	1:24000
Herm-Fughes complex, 10 to 20 percent slopes, extremely bouldery	98	7027	497279	jpg8	co686	1992	1:31680
Caballo-Herm complex, 3 to 40 percent slopes	CcE	2370	2770140	2tl8c	nm672		1:24000
Herm-Ishkoten complex, 5 to 50 percent slopes	HkF	512	2770218	2v5qh	nm672		1:24000
Herm-Dulcepeak, stony complex, 3 to 25 percent slopes	HdE	2485	2934509	2wkzr	nm678		1:24000
Herm-Lomapedro families complex, 0 to 15 percent slopes	287	2014	2934313	2wgl5	nm678		1:24000
Herm-Dula, frequently flooded complex, 0 to 15 percent slopes	HmD	249	2934508	2wkzq	nm678		1:24000
Herm-Dulcepeak complex, 3 to 25 percent slopes	560	11704	57524	1xvm	nm698	2000	1:24000
Herm-Iles stony loams, 3 to 25 percent slopes	38	17378	55358	1vlr	ut633	1983	1:24000
Herm-Tomasaki-Falcon complex, 25 to 65 percent slopes	39	17338	55359	1vls	ut633	1983	1:24000
Toone-Sirref-Herm complex, 10 to 30 percent slopes	94	10106	55420	1vnr	ut633	1983	1:24000
Herm clay loam, 8 to 20 percent slopes	37	1697	55357	1vlq	ut633	1983	1:24000

Map of Series Extent

Approximate geographic distribution of the HERM 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).