Soil Data Explorer - HORNITOS

Official Series Description

Lab Data Summary

Aggregate lab data for the HORNITOS soil series. This aggregation is based on all pedons with a current taxon name of HORNITOS, 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 HORNITOS 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
18	UCD8005087	80-CA-05-087x	Hornitos	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	37.996286,-120.823719

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the HORNITOS 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 HORNITOS 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 HORNITOS 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 HORNITOS 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 flats position figure.

Competing Series

Soil series competing with HORNITOS 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 HORNITOS 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).

There are insufficient data to create the annual climate figure.

Geomorphic description summaries for the HORNITOS 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 2D hillslope position figure.

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

There are insufficient data to create the 3D mountains 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 HORNITOS, 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 HORNITOS 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
Hornitos-Red Bluff-Ultic Haploxeralfs, shallow, complex, 3 to 25 percent slopes	5101	1471	2450478	2n7xp	ca630	2018	1:24000
Hornitos gravelly fine sandy loam, 8 to 30 percent slopes	HyD	1768	462634	hjdp	ca644	1959	1:24000
Hornitos gravelly fine sandy loam, 3 to 8 percent slopes	HyB	1423	462633	hjdn	ca644	1959	1:24000
Hornitos-Red Bluff-Ultic Haploxeralfs, shallow, complex, 3 to 25 percent slopes	5101	589	2924972	2n7xp	ca644	1959	1:24000
Hornitos fine sandy loam, 8 to 30 percent slopes	HvD	399	462632	hjdm	ca644	1959	1:24000
Hornitos fine sandy loam, 3 to 8 percent slopes	HvB	196	462631	hjdl	ca644	1959	1:24000
Hornitos gravelly fine sandy loam, 0 to 8 percent slopes	6HB	2561	462951	hjqx	ca648	1959	1:20000
Hornitos fine sandy loam, 3 to 8 percent slopes	5HB	1700	462948	hjqt	ca648	1959	1:20000
Hornitos gravelly fine sandy loam, 8 to 30 percent slopes	6HD	1476	462952	hjqy	ca648	1959	1:20000
Hornitos fine sandy loam, 8 to 30 percent slopes	5HD	1388	462949	hjqv	ca648	1959	1:20000
Hornitos fine sandy loam, 30 to 45 percent slopes	5HE	19	462950	hjqw	ca648	1959	1:20000
Hornitos extremely stony sandy loam, 2 to 50 percent slopes	HcF	1497	463268	hk24	ca649	1967	1:24000
Hornitos very rocky sandy loam, 8 to 30 percent slopes	HvD	1691	463456	hk86	ca651	1959	1:20000
Hornitos gravelly sandy loam, 3 to 8 percent slopes	HsB	509	463454	hk84	ca651	1959	1:20000
Hornitos gravelly sandy loam, 8 to 30 percent slopes	HsD	404	463455	hk85	ca651	1959	1:20000
Rockland, hornitos soil material	Rk	236	463500	hk9m	ca651	1959	1:20000

Map of Series Extent

Approximate geographic distribution of the HORNITOS 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).