Soil Data Explorer - TUNICA

Official Series Description

Lab Data Summary

Aggregate lab data for the TUNICA soil series. This aggregation is based on all pedons with a current taxon name of TUNICA, 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 TUNICA 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
131A	M9115501	1991MO155001	Tunica	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	36.2203598,-89.7180862
131A	99P0648	99MS143001	TUNICA	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	34.6845016,-90.4113083
n/a	40A5026	S1961TN045010	Tunica	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	40A5027	S1961TN045011	Tunica	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a

Water Balance

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

Soil series sharing subgroup-level classification with TUNICA, 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. LA-2012-02-01-02 | East Carroll Parish - February 1988

   Soils-landscape-parent material relationship across East Carroll Parish (Soil Survey of East Carroll Parish, Louisiana; February 1988).

2. MS-2012-04-27-09 | Tunica County - May 1956

   Soil association map of Tunica County, Miss (Soil Survey of Tunica County, Mississippi; May 1956).

Map Units

Map units containing TUNICA 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
Tunica clay, gently undulating	TnU	18720	564182	ly2f	ar035	1970	1:20000
Tunica clay, 0 to 1 percent slopes	TnA	11190	564181	ly2d	ar035	1970	1:20000
Tunica clay, frequently flooded	Tu	10650	564183	ly2g	ar035	1970	1:20000
Tunica clay, frequently flooded	Tv	2489	564211	ly3c	ar041	1968	1:20000
Tunica clay, 1 to 3 percent slopes	TuB	1965	564210	ly3b	ar041	1968	1:20000
Tunica clay, 0 to 1 percent slopes	TuA	1873	564209	ly39	ar041	1968	1:20000
Tunica soils, frequently flooded	Tu	8380	564112	ly05	ar077	1974	1:20000
Tunica silty clay, gently undulating	TnB	4310	564111	ly04	ar077	1974	1:20000
Tunica silty clay, 0 to 1 percent slopes	TnA	1270	564110	2v7s9	ar077	1974	1:20000
Tunica silty clay, 0 to 1 percent slopes	Tu	65450	564364	2v7s9	ar093	1967	1:20000
Steele and Tunica soils	St	19500	564362	ly87	ar093	1967	1:20000
Tunica silty clay, 0 to 1 percent slopes	Tn	9220	564254	2v7s9	ar107	1971	1:20000
Tunica soils, frequently flooded	Tu	4660	564256	ly4t	ar107	1971	1:20000
Tunica silty clay, gently undulating	TnU	3720	564255	ly4s	ar107	1971	1:20000
Tunica clay, undulating	TnU	6180	564289	ly5w	ar111	1973	1:20000
Tunica clay, 0 to 1 percent slopes	TnA	5286	564288	ly5v	ar111	1973	1:20000
Tunica silty clay, 0 to 2 percent slopes, frequently flooded	Tu	1447	655016	pzlk	ky075	2002	1:12000
Tunica silty clay, 0 to 2 percent slopes, protected	Tc	534	655018	pzlm	ky075	2002	1:12000
Tunica-Sharkey complex, gently undulating	Tu	8140	1723890	1vvvc	la029	1983	1:24000
Bruin-Tunica complex, gently undulating	Bw	3558	1723859	1vvtc	la029	1983	1:24000
Tunica-Sharkey complex, gently undulating, occasionally flooded	Ty	2919	1723891	1vvvd	la029	1983	1:24000
Tunica clay, 0 to 1 percent slopes, rarely flooded	Ts	1946	1723888	2x0tl	la029	1983	1:24000
Tunica clay, occasionally flooded	Tt	702	1723889	1vvvb	la029	1983	1:24000
Sharkey-Tunica clays, 0 to 3 percent slopes, gently undulating, frequently flooded	SoB	8290	3260444	2zfyw	la033	2007	1:24000
Sharkey-Tunica clays, 0 to 3 percent slopes, gently undulating, rarely flooded	ShB	3256	3260443	2zfyv	la033	2007	1:24000
Tunica clay, 0 to 1 percent slopes, rarely flooded	Tn	15811	569507	2x0tl	la035	1985	1:24000
Tunica-Sharkey clays, gently undulating	Ts	9082	569508	m3m7	la035	1985	1:24000
Tunica and Sharkey soils, frequently flooded	TT	5338	569503	m3m2	la035	1985	1:24000
Newellton-Tunica complex, gently undulating	Nm	5327	569498	m3lx	la035	1985	1:24000
Newellton and Tunica soils, frequently flooded	NT	4200	569495	m3lt	la035	1985	1:24000
Tunica and Sharkey soils, undulating, frequently flooded	TU	1522	1605287	1qwfg	la037	1992	1:24000
Tunica clay	Tu	6439	808499	w49m	la047	1975	1:24000
Sharkey-Tunica complex, gently undulating	St	26756	808555	w4cf	la065	1972	1:24000
Tunica clay, 0 to 1 percent slopes, rarely flooded	Tu	12261	808559	2x0tl	la065	1972	1:24000
Sharkey and Tunica soils, frequently flooded	SU	8832	808556	w4cg	la065	1972	1:24000
Sharkey-Tunica complex, gently undulating	Sm	10250	1678437	1tbk4	la077	1980	1:24000
Tunica clay	Tc	839	1678441	1tbk8	la077	1980	1:24000
Sharkey, Newellton, and Tunica soils, gently undulating, frequently flooded	SYA	23175	578945	mffn	la107	2001	1:24000
Sharkey-Tunica-Newellton complex, gently undulating	StB	6844	578928	mff3	la107	2001	1:24000
Tunica clay, 0 to 1 percent slopes, rarely flooded	TnA	1926	579077	2x0tl	la107	2001	1:24000
Tunica clay	Tc	3149	1397393	1hx36	la121	2004	1:24000
Sharkey-Tunica complex, gently undulating	Sm	47	1397389	1hx32	la121	2004	1:24000
Tunica and Sharkey soils, undulating, frequently flooded	TU	22818	1725621	1vxn6	la125	2002	1:24000
Tunica-Sharkey complex, undulating	Ts	1484	1725620	1vxn5	la125	2002	1:24000
Tunica silty clay loam, 0 to 1 percent slopes, occasionally flooded	86134	6351	2571580	2r037	mo133	1978	1:24000
Tunica silty clay loam, 0 to 1 percent slopes, rarely flooded	86071	6137	2501012	2q0hs	mo133	1978	1:24000
Tunica silty clay loam, 0 to 1 percent slopes, frequently flooded	86107	1020	2501136	2q0jr	mo133	1978	1:24000
Tunica silty clay loam, 0 to 1 percent slopes, occasionally flooded	86134	1190	2571608	2r037	mo201	1978	1:24000
Tunica silty clay loam, 0 to 1 percent slopes, rarely flooded	86071	1094	2501013	2q0hs	mo201	1978	1:24000
Tunica silty clay loam, 0 to 1 percent slopes, frequently flooded	86107	245	2501137	2q0jr	mo201	1978	1:24000
Sharkey-Tunica association	ST	10981	567427	m1g3	ms001	1966	1:15840
Tunica-Newellton association	TN	9031	567429	m1g5	ms001	1966	1:15840
Tunica clay, depressed	Tp	1375	567432	m1g8	ms001	1966	1:15840
Tunica clay	Tc	836	567431	m1g7	ms001	1966	1:15840
Tunica silty clay, 0 to 3 percent slopes, rarely flooded	Ta	14838	567520	2x0tn	ms011	1956	1:20000
Tunica silty clay, 3 to 7 percent slopes	Tb	1061	567521	m1k4	ms011	1956	1:20000
Bowdre, Tunica, and Crevasse soils, (bowdre, tunica and bruno)	Bc	12335	567573	m1lt	ms021	1961	1:20000
Tunica silty clay, 0 to 3 percent slopes, rarely flooded	Ta	6207	567670	2x0tn	ms027	1956	1:24000
Tunica silty clay, 3 to 7 percent slopes	Tb	1153	567671	m1pz	ms027	1956	1:24000
Tunica clay, 0 to 2 percent slopes, occasionally flooded	Ta	12035	2693449	2rv6h	ms055	1960	1:20000
Tunica silty clay loam, 0 to 2 percent slopes, rarely flooded	Tc	798	568066	2x0tm	ms055	1960	1:20000
Tunica clay, 2 to 5 percent slopes	Tb	624	568065	m23p	ms055	1960	1:20000
Tunica silty clay	Tu	1710	568101	m24v	ms063	1976	1:20000
Tunica silty clay, nearly level phase	Ta	732	568404	m2gm	ms119	1956	1:24000
Tunica silty clay, gently sloping phase	Tb	96	568405	m2gn	ms119	1956	1:24000
Tunica and Dundee soils, nearly level phase	Tc	15	568406	m2gp	ms119	1956	1:24000
Tunica and Dundee soils, gently sloping phases	Td	8	568407	m2gq	ms119	1956	1:24000
Tunica clay, 0 to 2 percent slopes	Ta	4453	568440	m2hs	ms125	1960	1:20000
Tunica silty clay loam, 0 to 2 percent slopes, rarely flooded	Tc	496	568441	2x0tm	ms125	1960	1:20000
Tunica silty clay, 0 to 3 percent slopes, rarely flooded	Ta	273	568501	2x0tn	ms133	1956	1:20000
Newellton-Tunica complex, undulating, frequently flooded	250	20575	1715968	1vllt	ms143	2006	1:24000
Sharkey, Tunica, and Dowling clays, frequently flooded (sharkey, tunica, sharkey)	SDT	45252	2693462	2rp20	ms149	1962	1:15840
Tunica silty clay	Tu	2917	568716	m2sp	ms149	1962	1:15840
Tunica clay, 0 to 2 percent slopes	Ta	15795	568773	m2vj	ms151	1959	1:20000
Tunica clay, 2 to 5 percent slopes	Tb	1047	568774	m2vk	ms151	1959	1:20000
Tunica silty clay loam, 0 to 2 percent slopes, rarely flooded	Tc	535	568775	2x0tm	ms151	1959	1:20000
Tunica silty clay, frequently flooded	28	9619	571090	m588	ms157	2006	1:24000
Tunica silt loam, occasionally flooded	Tu	850	2693474	2rv5l	ms163	1969	1:20000
Tunica clay	Tc	6040	566818	m0tg	tn045	1963	1:15840
Tunica clay (flooded)	Tc	1230	567136	m14q	tn095	1966	1:20000
Tunica clay, frequently flooded	Tu	266	567137	m14r	tn095	1966	1:20000
Tunica clay, frequently flooded	Tu	1911	567187	m16c	tn097	1985	1:24000
Tunica silty clay	Tu	11823	567323	m1br	tn157	1966	1:15840
Tunica clay, frequently flooded	Tu	9048	567360	m1cy	tn167	1989	1:24000

Map of Series Extent

Approximate geographic distribution of the TUNICA 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).