Soil Data Explorer - FERRIS

Official Series Description

Lab Data Summary

Aggregate lab data for the FERRIS soil series. This aggregation is based on all pedons with a current taxon name of FERRIS, 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 FERRIS 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
86A	40A4594	68TX223001	Ferris	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	33.2535071,-95.7101809

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the FERRIS 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 FERRIS 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 FERRIS 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 FERRIS 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.

There are insufficient data to create the 3D flats position figure.

Competing Series

Soil series competing with FERRIS 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 FERRIS 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 FERRIS 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 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 FERRIS, 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. TX-2010-11-03-02 | Fannin County - 2001

   Pattern of soils and parent material in the Houston Black-Leson general soil map unit (Soil Survey of Fannin County, Texas; 2001).

2. TX-2010-11-04-08 | Milam County - 2004

   Typical pattern of soils and underlying material in the Houston Black-Heiden-Ferris general soil map unit (Soil Survey of Milam County, Texas; 2004).

3. TX-2010-11-04-09 | Milam County - 2004

   Typical pattern of soils and underlying material in the Branyon-Burleson general soil map unit (Soil Survey of Milam County, Texas; 2004).

4. TX-2010-12-02-01 | McLennan County -

   Typical pattern of soils in the Heiden-Houston Black-Ferris general soil map unit (Soil Survey of McLennan County, Texas).

5. TX-2012-03-20-23 | Comal and Hays Counties - June 1984

   Pattern of soils in the Heiden-Houston Black general soil map unit (Soil Survey of Comal and Hays Counties, TX; 1984).

6. TX-2012-03-21-18 | Johnson County - October 1985

   Typical pattern of soils and parent material in the Heiden-Houston Black-Ferris map unit (Soil Survey of Johnson County, TX; 1985).

7. TX-2012-03-21-52 | Navarro County - December 1974

   Typical pattern of soils in the Houston Black-Heiden association (Soil Survey of Navarro County, TX; 1974).

Map Units

Map units containing FERRIS 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
Ferris-Tarrant complex, 8 to 20 percent slopes	33	17624	381814	dt9l	ok013	1974	1:24000
Ferris clay, 1 to 5 percent slopes, eroded	30	7695	381811	dt9h	ok013	1974	1:24000
Ferris-Romia complex, 5 to 20 percent slopes	32	4198	381813	dt9k	ok013	1974	1:24000
Ferris clay, 8 to 20 percent slopes	31	1844	381812	dt9j	ok013	1974	1:24000
Ferris clay, 3 to 5 percent slopes, eroded	19	4219	571208	m5d2	ok023	1977	1:24000
Ferris clay, 5 to 12 percent slopes	20	1334	571210	m5d4	ok023	1977	1:24000
Ferris clay, 3 to 5 percent slopes	18	1005	571207	m5d1	ok023	1977	1:24000
Ferris clay, 3 to 5 percent slopes, eroded	17	2156	383279	dvtv	ok069	1976	1:24000
Ferris and Heiden soils, 3 to 5 percent slopes, severely eroded	19	1757	383281	dvtx	ok069	1976	1:24000
Ferris-Tarrant complex, 5 to 12 percent slopes	18	1752	383280	dvtw	ok069	1976	1:24000
Ferris clay, 3 to 5 percent slopes, eroded	10	17190	383884	dwgc	ok095	1978	1:24000
Ferris-Tarrant complex, 5 to 12 percent slopes	12	16339	383886	dwgf	ok095	1978	1:24000
Ferris clay, 3 to 5 percent slopes, severely eroded	11	1085	383885	dwgd	ok095	1978	1:24000
Ferris clay, 5 to 8 percent slopes, eroded	FcD2	1169	575133	m9gp	tx001	1970	1:20000
Ferris clay, 5 to 20 percent slopes, eroded	FeF2	4723	393294	f67x	tx021	1972	1:24000
Heiden-Ferris complex, 3 to 8 percent slopes, moderately eroded	HfD3	20684	391098	f3z2	tx027	1972	1:24000
Ferris-Heiden complex, 5 to 15 percent slopes, moderately eroded	FhF2	10676	391091	2s1r4	tx027	1972	1:24000
Heiden-Ferris complex, 3 to 8 percent slopes, gravelly	HfD	575	3130047	2s1rm	tx027	1972	1:24000
Heiden-Ferris complex, 5 to 10 percent slopes, severely eroded	HoD3	6763	390474	f39y	tx029	2000	1:24000
Heiden-Ferris complex, 3 to 5 percent slopes, severely eroded	HnC3	733	390473	f39x	tx029	2000	1:24000
Ferris clay, 5 to 12 percent slopes	15	348	575259	m9lr	tx037	1978	1:20000
Heiden-Ferris complex, 5 to 20 percent slopes, severely eroded	HhF3	8549	363514	d688	tx055	1972	1:20000
Ferris-Heiden clay, 5 to 12 percent slopes, severely eroded	FeE3	13901	364069	d6v5	tx085	1965	1:20000
Ferris-Heiden complex, 5 to 12 percent slopes	34	25093	364816	d7m8	tx113	1975	1:20000
Ferris-Urban land complex, 5 to 12 percent slopes	35	8370	364817	d7m9	tx113	1975	1:20000
Ferris-Heiden clay, 5 to 15 percent slopes	32	10174	364983	d7sn	tx121	1975	1:24000
Ferris-Heiden clay, 3 to 5 percent slopes	31	1819	364982	d7sm	tx121	1975	1:24000
Ferris soils, 3 to 5 percent slopes, eroded	FeC2	1648	365057	d7w1	tx123	1973	1:20000
Heiden-Ferris complex, 5 to 8 percent slopes, severely eroded	HsD3	17946	365309	d845	tx139	1962	1:20000
Ferris clay, 5 to 12 percent slopes, eroded	SuE3	8467	365329	2v1v6	tx139	1962	1:20000
Heiden-Ferris complex, 5 to 8 percent slopes, eroded	32	7807	365451	d88r	tx145	1975	1:20000
Ferris-Heiden complex, 5 to 12 percent slopes, severely eroded	24	4456	365442	d88g	tx145	1975	1:20000
Ferris clay, 5 to 12 percent slopes, eroded	FeD2	23389	365519	2v1v6	tx147	1989	1:24000
Heiden-Ferris complex, 2 to 6 percent slopes, eroded	HfC2	17617	365523	d8c2	tx147	1989	1:24000
Ferris clay, 3 to 8 percent slopes	FeD	472	375389	dlmb	tx161	1986	1:24000
Ferris and Heiden soils, 5 to 20 percent slopes, eroded	FhF3	8848	366854	d9r0	tx187	1973	1:20000
Ferris clay, 4 to 8 percent slopes	15	1029	367604	dbj6	tx213	1978	1:20000
Ferris-Heiden complex, 2 to 5 percent slopes	39	46131	367752	2v1v7	tx217	1975	1:20000
Ferris clay, 5 to 12 percent slopes	37	14807	367750	dbnx	tx217	1975	1:20000
Ferris clay, 8 to 20 percent slopes, severely eroded	38	13448	367751	dbny	tx217	1975	1:20000
Ferris-Heiden complex, 2 to 5 percent slopes, eroded	11	24318	367872	2sshj	tx231	1978	1:24000
Ferris clay, 5 to 12 percent slopes, eroded	10	14632	367871	2v1v6	tx231	1978	1:24000
Ferris-Heiden complex, 2 to 5 percent slopes	FhC	13402	368165	2v1v7	tx251	1981	1:20000
Ferris clay, 5 to 12 percent slopes, eroded	FeD2	536	368164	2v1v6	tx251	1981	1:20000
Ferris clay, 1 to 5 percent slopes	FeB	250	369190	2ssgy	tx289	1985	1:24000
Ferris clay, 5 to 15 percent slopes	FeD	207	369191	dd5d	tx289	1985	1:24000
Ferris-Heiden complex, 2 to 5 percent slopes, eroded	FhC2	37188	369396	2sshj	tx293	1991	1:24000
Ferris clay, 5 to 15 percent slopes, eroded	FeD2	8847	369395	ddcz	tx293	1991	1:24000
Ferris clay, 8 to 15 percent slopes, eroded	FeE2	7872	370095	df3k	tx309	1992	1:24000
Ferris-Heiden complex, 5 to 15 percent slopes, moderately eroded	FhF2	27842	370672	2s1r4	tx331	1988	1:24000
Heiden-Ferris complex, 3 to 8 percent slopes, gravelly	HfD	605	3130080	2s1rm	tx331	1988	1:24000
Ferris and Heiden clays, 5 to 15 percent slopes, eroded	FhE2	10148	370931	dfzj	tx349	1968	1:24000
Ferris clay, 3 to 8 percent slopes, eroded	FeD2	9149	370930	dfzh	tx349	1968	1:24000
Ferris and Heiden stony clays, 8 to 15 percent slopes	FlE	105	370932	dfzk	tx349	1968	1:24000
Ferris clay, 3 to 8 percent slopes eroded	FeD2	10745	371438	dghw	tx387	1972	1:24000
Ferris-Heiden complex, 2 to 5 percent slopes	FhC	2781	372370	2v1v7	tx439	1979	1:20000
Ferris clay, 5 to 12 percent slopes, eroded	FcE2	1353	372369	2v1v6	tx439	1979	1:20000
Ferris-Heiden complex, 8 to 20 percent slopes, severely eroded	FhF3	14879	392244	f551	tx453	1969	1:20000
Urban land and Ferris soils, 10 to 15 percent slopes	UvE	1917	393257	f66q	tx453	1969	1:20000
Ferris clay, 1 to 5 percent slopes	16	17038	575945	2ssgy	tx471	1975	1:20000
Ferris clay, gullied	17	1284	575946	mb9x	tx471	1975	1:20000
Ferris-Heiden complex, 5 to 15 percent slopes, moderately eroded	FhF2	19495	373552	2s1r4	tx491	1981	1:20000
Heiden-Ferris complex, 3 to 8 percent slopes, gravelly	HfD	662	3130113	2s1rm	tx491	1981	1:20000
Ferris clay, 5 to 20 percent slopes, severely eroded	FeF4	2510	390697	f3k4	tx604	1981	1:20000
Ferris clay, 5 to 12 percent slopes, eroded	FeD2	4308	374390	2v1v6	tx610	1973	1:20000
Ferris-Heiden complex, 2 to 5 percent slopes	FhC	17527	374471	2v1v7	tx612	1973	1:20000
Ferris clay, 5 to 12 percent slopes, eroded	FeD2	15984	374470	2v1v6	tx612	1973	1:20000
Heiden-Ferris complex, 3 to 5 percent slopes	25	14844	393355	f69w	tx614	1975	1:20000
Ferris clay, 5 to 12 percent slopes, eroded	19	14789	393349	2v1v6	tx614	1975	1:20000

Map of Series Extent

Approximate geographic distribution of the FERRIS 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).