Soil Data Explorer - UNICOI

Official Series Description

Lab Data Summary

Aggregate lab data for the UNICOI soil series. This aggregation is based on all pedons with a current taxon name of UNICOI, 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 UNICOI 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
130B	01N1063	2001NC087002	Unicoi	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	35.6320443,-83.0882084

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the UNICOI 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 UNICOI 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 UNICOI 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 UNICOI 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 terrace figure.

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

Competing Series

Soil series competing with UNICOI 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 UNICOI 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 UNICOI 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 terrace figure.

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

Soil series sharing subgroup-level classification with UNICOI, 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. TN-2010-11-02-19 | McMinn County - 2004

   Relationship of soils and parent material in the Tellico-Red Hills-Nonaburg and Lostcove-Unicoi-Cataska general soil map units (Soil Survey of McMinn County, Tennessee; 2004).

2. TN-2012-03-19-26 | McMinn County - 2004

   Relationship of soils and parent material in the Tellico-Red Hills-Nonaburg and Lostcove-Unicoi-Cataska general soil map units (Soil Survey of McMinn County, TN; 2004).

Map Units

Map units containing UNICOI 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
Ditney-Unicoi-Rock outcrop complex, 30 to 45 percent slopes, very stony	DrF	1571	1611895	1r39m	ga015	2013	1:12000
Ditney-Unicoi-Rock outcrop complex, 15 to 30 percent slopes, very stony	DrE	622	1611894	1r39l	ga015	2013	1:12000
Ditney-Unicoi-Rock outcrop complex, 10 to 15 percent slopes, very stony	DrD	522	1611893	1r39k	ga015	2013	1:12000
Ditney-Unicoi-Rock outcrop complex, 45 to 70 percent slopes, very stony	DrG	462	1611896	1r39n	ga015	2013	1:12000
Unicoi-Rock outcrop complex, 30 to 95 percent slopes, extremely bouldery	UoF	296	548122	ldcc	nc011	1997	1:12000
Ditney-Unicoi-Rock outcrop complex, 25 to 95 percent slopes	DrF	5265	116802	3xjt	nc023	2000	1:24000
Ditney-Unicoi-Rock outcrop complex, 50 to 95 percent slopes, very stony	DtF	5408	2423114	2mbfz	nc039	2009	1:12000
Ditney-Unicoi-Rock outcrop complex, 30 to 50 percent slopes, very stony	DtE	762	2423113	2mbfy	nc039	2009	1:12000
Ditney-Unicoi-Rock outcrop complex, 15 to 30 percent slopes, very stony	DtD	325	2423112	2mbfx	nc039	2009	1:12000
Ditney-Unicoi-Rock outcrop complex, 50 to 95 percent slopes, very stony	DtF	11983	1912749	226cl	nc075	2007	1:12000
Ditney-Unicoi-Rock outcrop complex, 30 to 50 percent slopes, very stony	DtE	1409	1912748	226ck	nc075	2007	1:12000
Ditney-Unicoi-Rock outcrop complex, 15 to 30 percent slopes, very stony	DtD	726	1912747	226cj	nc075	2007	1:12000
Ditney-Unicoi complex, 25 to 80 percent slopes, very stony	DuF	3901	547188	lcd7	nc111	1989	1:24000
Ditney-Unicoi-Rock outcrop complex, 60 to 95 percent slopes	DxF	1375	547189	lcd8	nc111	1989	1:24000
Ditney-Unicoi complex, 10 to 25 percent slopes, very stony	DuD	400	547187	lcd6	nc111	1989	1:24000
Ditney-Unicoi complex, 50 to 95 percent slopes, very rocky	DuF	4560	1671346	1t35d	nc115	2006	1:12000
Ditney-Unicoi complex, 30 to 50 percent slopes, very rocky	DuE	1901	1671345	1t35c	nc115	2006	1:12000
Ditney-Unicoi complex, 15 to 30 percent slopes, very stony	DtD	748	1671344	1t35b	nc115	2006	1:12000
Rock outcrop-Unicoi complex, 30 to 95 percent slopes, very bouldery	RpF	152	1671429	1t382	nc115	2006	1:12000
Unicoi-Rock outcrop complex, 8 to 30 percent slopes, very bouldery	UrD	55	1671495	1t3b6	nc115	2006	1:12000
Ditney-Unicoi complex, 50 to 95 percent slopes, very rocky	DuF	689	561874	lvnz	nc189	2001	1:12000
Ditney-Unicoi complex, 50 to 95 percent slopes, very rocky	DwF	1596	547838	ld26	nc199	1997	1:12000
Ditney-Unicoi complex, 30 to 50 percent slopes, very stony	DuE	576	547837	ld25	nc199	1997	1:12000
Ditney-Unicoi complex, 15 to 30 percent slopes, very stony	DuD	126	547836	ld24	nc199	1997	1:12000
Ditney-Unicoi-Rock outcrop complex, 50 to 95 percent slopes, very stony	DtF	6041	623191	nxgy	nc605	2007	1:12000
Ditney-Unicoi-Rock outcrop complex, 30 to 50 percent slopes, very stony	DtE	488	623192	nxgz	nc605	2007	1:12000
Unicoi-Rock outcrop complex, 50 to 80 percent slopes	UcG	14781	526495	2vfhh	tn019	2000	1:24000
Unicoi-Rock outcrop complex, 50 to 80 percent slopes	23G	14132	2395936	2vfhh	tn059	1954	1:15840
Rock outcrop-Unicoi complex, 50 to 99 percent slopes	86G	2571	2395950	2tk5t	tn059	1954	1:15840
Unicoi-Rock outcrop complex, 35 to 50 percent slopes	23F	236	2395935	2v0yj	tn059	1954	1:15840
Unicoi-Rock outcrop complex, 50 to 80 percent slopes	UcG	23531	526564	2vfhh	tn091	2000	1:24000
Ditney-Unicoi complex, very rocky, 50 to 95 percent slopes	DjF	110	526528	knws	tn091	2000	1:24000
Unicoi-Rock outcrop complex, 50 to 120 percent slopes	UoG	989	526200	knk6	tn107	1999	1:24000
Unicoi gravelly sandy loam, 10 to 35 percent slopes, very rocky	UnE	955	526197	knk3	tn107	1999	1:24000
Unicoi cobbly loam, 30 to 65 percent slopes	UcF	316	527953	kqcr	tn123	1974	1:20000
Unicoi-Rock outcrop complex, 35 to 65 percent slopes	UnF	5043	523786	kl1b	tn139	1997	1:24000
Unicoi-Rock outcrop complex, 15 to 35 percent slopes	UnD	599	523785	kl19	tn139	1997	1:24000
Unicoi-Rock outcrop complex, 50 to 80 percent slopes	UnG	2020	530093	2vfhh	tn163	1991	1:20000
Rock outcrop-Unicoi complex, 50 to 99 percent slopes	86G	6358	2401340	2tk5t	tn171	1980	1:24000
Unicoi-Rock outcrop complex, 50 to 80 percent slopes	23G	5578	2401331	2vfhh	tn171	1980	1:24000
Unicoi-Rock outcrop complex, 35 to 50 percent slopes	23F	1321	2401330	2v0yj	tn171	1980	1:24000
Unicoi-Rock outcrop complex, 50 to 80 percent slopes	UcG	6357	1690199	2vfhh	tn179	1955	1:15840
Rock outcrop-Unicoi complex, 50 to 99 percent slopes	RuG	1567	1689702	2tk5t	tn179	1955	1:15840
Unicoi-Rock outcrop complex, 35 to 50 percent slopes	UcF	368	1690200	2v0yj	tn179	1955	1:15840
Unicoi-Rock outcrop complex, 50 to 80 percent slopes	UnG	16815	524842	2vfhh	tn606	2001	1:24000
Unicoi-Rock outcrop complex, 35 to 50 percent slopes	UnF	5842	524841	2v0yj	tn606	2001	1:24000
Rock outcrop-Unicoi complex, 50 to 99 percent slopes	RuG	133	524827	2tk5t	tn606	2001	1:24000
Unicoi-Rock outcrop complex, 30 to 80 percent slopes	UnE	19394	529711	ks6g	tn608	2001	1:24000
Unicoi-Ditney-Rock outcrop complex, 30 to 80 percent slopes	UdE	8251	529710	ks6f	tn608	2001	1:24000
Ditney-Unicoi complex, 30 to 95 percent slopes, very rocky	DtF	70439	553556	ll0n	tn640	2007	1:24000
Ditney-Unicoi complex, 15 to 30 percent slopes, very rocky	DtD	5963	553541	ll05	tn640	2007	1:24000
Rock outcrop-Unicoi complex, 30 to 95 percent slopes	RuF	2344	553542	ll06	tn640	2007	1:24000
Unicoi-Marbleyard complex, 35 to 55 percent slopes, extremely stony	49E	2809	1914835	228jw	va063	2007	1:24000
Marbleyard-Unicoi complex, 8 to 35 percent slopes, extremely stony	31D	601	1914834	228jv	va063	2007	1:24000
Unicoi very gravelly sandy loam, 35 to 55 percent slopes, extremely stony	59E	1580	1670500	1t293	va077	2006	1:24000
Unicoi very gravelly sandy loam, 7 to 35 percent slopes, extremely stony	59D	343	1670499	1t292	va077	2006	1:24000

Map of Series Extent

Approximate geographic distribution of the UNICOI 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).