Soil Data Explorer - TILLMAN

Official Series Description

Lab Data Summary

Aggregate lab data for the TILLMAN soil series. This aggregation is based on all pedons with a current taxon name of TILLMAN, 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 TILLMAN were used in the calculation. Source: KSSL snapshot (updated 2020-03-18). 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
78B	80-OK-29-11	80-OK057-29-11	Tillman	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	34.673875,-99.8248278
78B	40A4541	MLRA78-Tillman-TX197-0290	Tillman	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	34.2852783,-99.7058334
78C	00P1362	S2000TX487001	Tillman	8	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	33.8875885,-99.3252563

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the TILLMAN 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 TILLMAN series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot (updated 2024-02-21), parsed OSD records (updated 2023-10-06) and snapshot of SC database (updated 2023-10-02).

Select annual climate data summaries for the TILLMAN 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 TILLMAN 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.

Competing Series

Soil series competing with TILLMAN share the same family level classification in Soil Taxonomy. Source: parsed OSD records (updated 2023-10-06) and snapshot of the SC database (updated 2023-10-02).

Select annual climate data summaries for the TILLMAN 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 TILLMAN 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 TILLMAN, 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. OK-2010-09-29-18 | Woods County - 2003

   Typical pattern of soils and underlying material in the Burford-Knoco-Vernon general soil map unit (Soil Survey of Woods County, Oklahoma; 2003).

2. OK-2012-02-16-14 | Comanche County - August 1967

   Topography and underlying material of major soils in associations 1 and 7 (Soil Survey of Comanche County, Oklahoma; August 1967).

3. OK-2012-02-16-16 | Comanche County - August 1967

   Topography and underlying material of Lawton soils and other extensive soils in northwestern part of county (Soil Survey of Comanche County, Oklahoma; August 1967).

4. OK-2012-02-16-17 | Comanche County - August 1967

   Topography and underlying material of Waurika soils and other extensive soils in southeastern part of county (Soil Survey of Comanche County, Oklahoma; August 1967).

5. OK-2012-02-16-18 | Comanche County - August 1967

   Topography and underlying material of Windthorst soils and other extensive soils in southwestern part of county (Soil Survey of Comanche County, Oklahoma; August 1967).

6. OK-2012-02-16-19 | Cotton County - December 1963

   Typical pattern of Foard and Tillmans soils on gently undulating uplands in association 1 (Soil Survey of Cotton County, Oklahoma; December 1963).

7. OK-2012-02-16-20 | Cotton County - December 1963

   Typical pattern of Zaneis, Lucien, and associated soils in the northeastern part of Cotton County (Soil Survey of Cotton County, Oklahoma; December 1963).

8. OK-2012-02-16-21 | Cotton County - December 1963

   Typical pattern of Pratt, Tivoli, and associated soils (Soil Survey of Cotton County, Oklahoma; December 1963).

9. OK-2012-02-16-22 | Cotton County - December 1963

   Typical pattern of moderately sloping Vernon soils in association 8 (Soil Survey of Cotton County, Oklahoma; December 1963).

10. OK-2012-02-16-37 | Greer County - March 1967

    Major soils in soil associations 3, 7, and 9, and their relation to the landscape (Soil Survey of Greer County, Oklahoma; March 1967).

11. OK-2012-02-16-42 | Harmon County - September 1984

    Typical pattern of soils and underlying material in the Tillman-Vernon map unit (Soil Survey of Harmon County, Oklahoma; September 1984).

12. OK-2012-02-16-51 | Jackson County - June 1961

    Typical pattern of La Casa and associated soils, Rough broken land, and Rock outcrop (Soil Survey of Jackson County, Oklahoma; June 1961).

13. OK-2012-02-17-10 | Major County - October 1968

    Soil associations in the western part of the county (Soil Survey of Major County, Oklahoma; October 1968).

14. OK-2012-02-17-13 | Major County - October 1968

    Cross section along a line extending across the middle of the county from the western to the eastern boundary (Soil Survey of Major County, Oklahoma; October 1968).

15. TX-2010-11-05-05 | Young County - 2009

    Pattern of soils and underlying material in the Sagerton general soil map unit (Soil Survey of Young County, Texas; 2009).

16. TX-2012-03-19-13 | Archer County - April 1995

    Typical pattern of soils and parent material in the Tillman-Vernon general soil map unit (Soil Survey of Archer County, TX; 1995).

17. TX-2012-03-20-18 | Childress County - July 1963

    Soils developed in Permian shales and clays (Soil Survey of Childress County, TX; 1963).

18. TX-2012-03-21-09 | Haskell County - March 1961

    Soils developed in red-bed clay and shale (Soil Survey of Haskell County, TX; 1961).

19. TX-2012-03-21-85 | Stonewall County - January 1975

    Tillman-Vernon soil association (Soil Survey of Stonewall County, TX; 1975).

20. TX-2012-03-21-86 | Stonewall County - January 1975

    Owens-Cottonwood soil association (Soil Survey of Stonewall County, TX; 1975).

21. TX-2012-03-22-10 | Wilbarger County - September 1962

    Block diagram showing the geographical association of some of the soils developed in clays and shales. Norwood clay loam, which formed in recent alluvium, is in soil association 6 (Soil Survey of Wilbarger County, TX; 1962).

Map Units

Map units containing TILLMAN 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
Tillman clay loam, 1 to 3 percent slopes	54	4850	381693	2w5qv	ok009	1978	1:24000
Tillman silty clay loam, 1 to 3 percent slopes	TlB	23908	381924	2w5r0	ok015	1967	1:24000
Tillman silty clay loam, 3 to 5 percent slopes	TlC	9433	381925	dtf5	ok015	1967	1:24000
Tillman silty clay loam, 3 to 5 percent slopes, eroded	TlC2	1975	381926	dtf6	ok015	1967	1:24000
Foard and Tillman soils, 1 to 3 percent slopes	FtB	84919	382177	dtp9	ok031	1965	1:24000
Tillman clay loam, 3 to 5 percent slopes	TmC	8889	382203	2w5qx	ok031	1965	1:24000
Tillman and Vernon soils, 2 to 8 percent slopes, severely eroded	Es	6474	382171	dtp3	ok031	1965	1:24000
Tillman-Foard complex, 1 to 3 percent slopes	FtB	60065	382231	dtr1	ok033	1961	1:24000
Tillman silt loam, 1 to 3 percent slopes	TaB	5158	382248	dtrl	ok033	1961	1:24000
Tillman clay loam, 1 to 3 percent slopes	TilB	4407	394355	2w5qv	ok055	2005	1:24000
Tillman clay loam, 0 to 1 percent slopes	TilA	1277	394354	2w5qt	ok055	2005	1:24000
Tillman clay loam, 1 to 3 percent slopes	TilB	22111	392402	2w5qv	ok065	2000	1:24000
Tillman clay loam, 0 to 1 percent slopes	TilA	9603	392405	2w5qt	ok065	2000	1:24000
Tillman clay loam, 1 to 3 percent slopes	TcB	59204	383485	2w5qv	ok075	1973	1:24000
Tillman-Hinkle complex, 1 to 3 percent slopes	TdB	18852	383487	dw1k	ok075	1973	1:24000
Tillman-Vernon complex, 3 to 5 percent slopes, eroded	ToC2	9228	383488	dw1l	ok075	1973	1:24000
Tillman and Vernon soils, 3 to 5 percent slopes	TcC	8618	383486	dw1j	ok075	1973	1:24000
Hollister and Tillman soils, 1 to 3 percent slopes	HoB	7152	383456	dw0k	ok075	1973	1:24000
Hollister and Tillman soils, 1 to 3 percent slopes, eroded	HoB2	6717	383457	dw0l	ok075	1973	1:24000
Tillman clay loam, 1 to 3 percent slopes	TcB	12618	383866	2w5qv	ok093	1965	1:24000
Burford-Tillman complex, 3 to 5 percent slopes, moderately eroded	WlC2	8907	383880	dwg7	ok093	1965	1:24000
Tillman clay loam, 3 to 5 percent slopes	TcC	4213	383867	2w5qx	ok093	1965	1:24000
Burford-Tillman complex, 3 to 5 percent slopes	WlC	3468	383879	dwg6	ok093	1965	1:24000
Tillman clay loam, 0 to 1 percent slopes	TcA	2451	383865	2w5qt	ok093	1965	1:24000
Burford-Tillman complex, 1 to 3 percent slopes	WlB	2157	383878	dwg5	ok093	1965	1:24000
Tillman and Foard soils, 1 to 3 percent slopes	TfB	44866	384976	dxll	ok141	1968	1:24000
Tillman-Hinkle complex, 1 to 3 percent slopes	ThB	30015	384977	dxlm	ok141	1968	1:24000
Tillman silt loam, moderately shallow variant, 3 to 5 percent slopes	TeC	1899	384975	dxlk	ok141	1968	1:24000
Tillman silty clay loam, 1 to 3 percent slopes	TilB	18135	385240	2w5r0	ok151	1995	1:24000
Tillman silty clay loam, 0 to 1 percent slopes	TilA	5235	385239	dxw2	ok151	1995	1:24000
Tillman clay loam, 1 to 3 percent slopes	TcB	35893	362449	2w5qv	tx009	1986	1:24000
Tillman clay loam, 0 to 1 percent slopes	TcA	14226	362448	2w5qt	tx009	1986	1:24000
Tillman clay loam, 1 to 3 percent slopes	TlB	58694	362736	2w5qv	tx023	1971	1:24000
Tillman clay loam, 0 to 1 percent slopes	TlA	5840	362735	2w5qt	tx023	1971	1:24000
Tillman clay loam, 1 to 3 percent slopes	TcB	22789	363846	d6lz	tx075	1961	1:20000
Tillman clay loam, 0 to 1 percent slopes, dry	TcA	1900	363845	2w5qy	tx075	1961	1:20000
Tillman clay loam, 1 to 3 percent slopes, eroded	TcB2	952	363847	d6m0	tx075	1961	1:20000
Tillman silty clay loam, 1 to 3 percent slopes	TmB	38446	364622	d7f0	tx101	1969	1:20000
Tillman silty clay loam, 0 to 1 percent slopes	TmA	5646	364621	d7dz	tx101	1969	1:20000
Tillman silty clay loam, 1 to 3 percent slopes, eroded	TmB2	928	364623	d7f1	tx101	1969	1:20000
Tillman clay loam, 1 to 3 percent slopes	TlB	2635	365152	2w5qv	tx125	1965	1:20000
Tillman clay loam, 0 to 1 percent slopes	TlA	1018	365151	2w5qt	tx125	1965	1:20000
Tillman clay loam, 1 to 3 percent slopes	TcB	16679	365809	2w5qv	tx151	1964	1:24000
Tillman clay loam, 0 to 1 percent slopes	TcA	16337	365808	2w5qt	tx151	1964	1:24000
Tillman-Vernon complex	Tm	2097	365810	d8nb	tx151	1964	1:24000
Tillman clay loam, 1 to 3 percent slopes	TmB	24091	3156161	2w5qv	tx155	2021	1:24000
Tillman clay loam, 0 to 1 percent slopes	TmA	12684	3156153	2w5qt	tx155	2021	1:24000
Tillman clay loam, 1 to 3 percent slopes, severely eroded	TmB3	175	3156157	2w5qw	tx155	2021	1:24000
Tillman clay loam, 1 to 3 percent slopes	TmB	56767	367167	2w5qv	tx197	1965	1:20000
Tillman clay loam, 0 to 1 percent slopes	TmA	5865	367166	2w5qt	tx197	1965	1:20000
Tillman clay loam, 1 to 3 percent slopes	TcB	59117	367525	2w5qv	tx207	1960	1:20000
Tillman clay loam, 0 to 1 percent slopes	TcA	12941	367524	2w5qt	tx207	1960	1:20000
Tillman-Tobosa complex, 0 to 1 percent slopes	TrA	7426	367531	dbfv	tx207	1960	1:20000
Tillman clay loam, 1 to 3 percent slopes, severely eroded	TcB2	7340	367526	2w5qw	tx207	1960	1:20000
Tillman clay loam, 3 to 5 percent slopes	TcC	611	367527	2w5qx	tx207	1960	1:20000
Tillman clay loam, 1 to 3 percent slopes	TcB	40803	368259	2w5qv	tx253	1966	1:20000
Tillman clay loam, 0 to 1 percent slopes	TcA	27675	368258	2w5qt	tx253	1966	1:20000
Tillman clay loam, 1 to 3 percent slopes	35	16383	368737	2w5qv	tx275	1975	1:24000
Tillman clay loam, 0 to 1 percent slopes	34	14698	368736	2w5qt	tx275	1975	1:24000
Tillman clay loam, 0 to 1 percent slopes, dry	49	1314	371019	2w5qy	tx353	1979	1:24000
Tillman clay loam, 1 to 3 percent slopes	TcB	39623	372309	2w5qv	tx433	1970	1:24000
Tillman clay loam, 0 to 1 percent slopes	TcA	29500	372308	2w5qt	tx433	1970	1:24000
Tillman clay loam, 1 to 3 percent slopes	TmB	20864	391563	f4g2	tx441	1971	1:20000
Tillman clay loam, 0 to 1 percent slopes	TmA	9397	391562	f4g1	tx441	1971	1:20000
Tillman clay loam, 0 to 1 percent slopes	TtA	6075	372720	2w5qt	tx447	1991	1:24000
Tillman clay loam, 1 to 3 percent slopes	TcB	41165	373387	2w5qv	tx485	1972	1:20000
Tillman clay loam, 0 to 1 percent slopes	TcA	3835	373386	2w5qt	tx485	1972	1:20000
Tillman and Deandale soils, saline, 0 to 3 percent slopes	TfB	812	373388	djjs	tx485	1972	1:20000
Tillman clay loam, 1 to 3 percent slopes	TcB	80171	373446	2w5qv	tx487	1960	1:20000
Tillman clay loam, 0 to 1 percent slopes	TcA	19043	373445	2w5qt	tx487	1960	1:20000
Tillman clay loam, 1 to 3 percent slopes, severely eroded	TcB2	543	373447	2w5qw	tx487	1960	1:20000
Tillman clay loam, 1 to 3 percent slopes	TmB	16285	373780	2w5qv	tx503	2003	1:24000

Map of Series Extent

Approximate geographic distribution of the TILLMAN 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).