Soil Data Explorer - UNISON

Official Series Description

Lab Data Summary

Aggregate lab data for the UNISON soil series. This aggregation is based on all pedons with a current taxon name of UNISON, 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 UNISON 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	86P0937	86NC099004	Unison	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	35.334446,-83.2258301
130B	87P0827	87NC199004	Unison	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	35.8888893,-82.2125015
148	00P1120	S2000VA107002	Unison	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.005047,-77.922928

Water Balance

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

Competing Series

Soil series competing with UNISON 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 UNISON 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 UNISON 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 flats position figure.

Soil series sharing subgroup-level classification with UNISON, 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. NC-2010-09-27-02 | Burke County - 2006

   Typical relationship between soils, landform, and parent material in the Colvard-Unison and Fairview-Rhodhiss general soil map units (Soil Survey of Burke County, North Carolina; 2006).

Map Units

Map units containing UNISON 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
Unison loam, 8 to 15 percent slopes	UnC	956	1672195	1t41s	nc021	2006	1:12000
Unison loam, 2 to 8 percent slopes	UnB	758	1672194	1t41r	nc021	2006	1:12000
Unison-Urban land complex, 2 to 8 percent slopes	UrB	188	1672197	1t41v	nc021	2006	1:12000
Unison loam, 15 to 30 percent slopes	UnD	121	1672196	1t41t	nc021	2006	1:12000
Unison-Urban land complex, 8 to 15 percent slopes	UrC	120	1672198	1t41w	nc021	2006	1:12000
Unison fine sandy loam, 2 to 8 percent slopes	UnB	2886	117033	3xs8	nc023	2000	1:24000
Unison fine sandy loam, 8 to 15 percent slopes	UnC	1893	117034	3xs9	nc023	2000	1:24000
Unison fine sandy loam, 15 to 25 percent slopes	UnD	149	117042	3xsk	nc023	2000	1:24000
Unison loam, 2 to 8 percent slopes	UnB	258	1912788	226dv	nc075	2007	1:12000
Unison loam, 8 to 15 percent slopes	UnC	84	1912789	226dw	nc075	2007	1:12000
Unison loam, 8 to 15 percent slopes	UsC	682	1671498	1t3b9	nc115	2006	1:12000
Unison loam, 2 to 8 percent slopes	UsB	281	1671497	1t3b8	nc115	2006	1:12000
Unison loam, 15 to 30 percent slopes	UsD	269	1671496	1t3b7	nc115	2006	1:12000
Unison loam, 8 to 15 percent slopes	UsC	1134	547877	ld3g	nc199	1997	1:12000
Unison loam, 2 to 8 percent slopes	UsB	778	547876	ld3f	nc199	1997	1:12000
Unison loam, 15 to 30 percent slopes	UsD	626	547878	ld3h	nc199	1997	1:12000
Unison loam, 2 to 5 percent slopes	UnB	1616	526496	knvr	tn019	2000	1:24000
Unison-Urban land complex, 5 to 12 percent slopes	UuC	1383	526498	knvt	tn019	2000	1:24000
Unison loam, 5 to 12 percent slopes	UnC	1331	526497	knvs	tn019	2000	1:24000
Unison very stony silt loam, 7 to 15 percent slopes	90C	1220	516494	kbg3	va003	1981	1:15840
Unison silt loam, 2 to 7 percent slopes	89B	970	516490	kbfz	va003	1981	1:15840
Unison very stony silt loam, 2 to 7 percent slopes	90B	580	516493	kbg2	va003	1981	1:15840
Unison silt loam, 7 to 15 percent slopes	89C	310	516491	kbg0	va003	1981	1:15840
Unison very stony silt loam, 15 to 25 percent slopes	90D	250	516495	kbg4	va003	1981	1:15840
Unison loam, 7 to 15 percent slopes, very stony	44C	756	136778	4lb6	va009	2004	1:24000
Unison loam, 7 to 15 percent slopes	43C	661	136777	4lb5	va009	2004	1:24000
Unison loam, 2 to 7 percent slopes	43B	408	136775	4lb3	va009	2004	1:24000
Unison loam, 2 to 7 percent slopes, very stony	44B	23	136776	4lb4	va009	2004	1:24000
Unison fine sandy loam, 2 to 7 percent slopes	86B	3085	518078	kd36	va015	1978	1:15840
Unison fine sandy loam, 7 to 15 percent slopes, eroded	86C2	1267	518079	kd37	va015	1978	1:15840
Unison cobbly fine sandy loam, 15 to 45 percent slopes	87E	991	518083	kd3c	va015	1978	1:15840
Unison cobbly fine sandy loam, 7 to 15 percent slopes	87C	736	518082	kd3b	va015	1978	1:15840
Unison cobbly fine sandy loam, 2 to 7 percent slopes	87B	691	518081	kd39	va015	1978	1:15840
Unison fine sandy loam, 15 to 25 percent slopes, eroded	86D2	367	518080	kd38	va015	1978	1:15840
Unison loam, 2 to 7 percent slopes	UnB	443	516912	kbwl	va079	1983	1:15840
Unison loam, 7 to 15 percent slopes	UnC	403	516913	kbwm	va079	1983	1:15840
Unison loam, 0 to 2 percent slopes	UnA	186	516911	kbwk	va079	1983	1:15840
Unison loam, 7 to 15 percent slopes	UnC	801	517057	kc18	va113	1967	1:15840
Unison loam, 2 to 7 percent slopes	UnB	592	517056	kc17	va113	1967	1:15840
Unison loam, 15 to 25 percent slopes	UnD	436	517058	kc19	va113	1967	1:15840
Unison very stony silt loam, 15 to 25 percent slopes	UsD	349	517060	kc1c	va113	1967	1:15840
Unison very stony silt loam, 7 to 15 percent slopes	UsC	165	517059	kc1b	va113	1967	1:15840
Unison-Urban land complex, 2 to 7 percent slopes	32B	2129	517110	kc2z	va121	1980	1:15840
Unison and Braddock soils, 2 to 7 percent slopes	30B	1183	517106	kc2v	va121	1980	1:15840
Unison and Braddock soils, 7 to 15 percent slopes	30C	1183	517107	kc2w	va121	1980	1:15840
Unison and Braddock soils, 15 to 25 percent slopes	30D	1092	517108	kc2x	va121	1980	1:15840
Unison and Braddock cobbly soils, 7 to 15 percent slopes	31C	981	517109	kc2y	va121	1980	1:15840
Unison-Urban land complex, 7 to 15 percent slopes	32C	534	517111	kc30	va121	1980	1:15840
Unison-Urban land complex, 15 to 25 percent slopes	32D	431	517112	kc31	va121	1980	1:15840
Unison loam, 2 to 7 percent slopes	49B	1824	137118	4lp5	va125	1992	1:24000
Unison loam, 7 to 15 percent slopes	49C	1009	137119	4lp6	va125	1992	1:24000
Unison loam, 15 to 25 percent slopes	49D	398	137120	4lp7	va125	1992	1:24000
Unison fine sandy loam, 7 to 15 percent slopes	49C	2737	517288	kc8q	va139	1995	1:20000
Unison fine sandy loam, 2 to 7 percent slopes	49B	1357	517286	kc8n	va139	1995	1:20000
Unison fine sandy loam, 15 to 25 percent slopes	49D	994	517289	kc8r	va139	1995	1:20000
Unison-Thurmont complex, 7 to 15 percent slopes, very stony	StC	3019	517469	2tmcl	va157	1958	1:20000
Unison-Thurmont complex, 15 to 25 percent slopes, very stony	StD	1296	517470	2tmcm	va157	1958	1:20000
Craigsville-Unison complex, 2 to 7 percent slopes, very stony	StB	901	517468	2w06j	va157	1958	1:20000
Unison loam, gently sloping phase	UnB	524	517473	kcgp	va157	1958	1:20000
Unison cobbly loam, sloping phase	UcC	453	517472	kcgn	va157	1958	1:20000
Unison loam, eroded sloping phase	UnC2	305	517474	kcgq	va157	1958	1:20000
Unison cobbly loam, gently sloping phase	UcB	271	517471	kcgm	va157	1958	1:20000
Unison loam, gently sloping fragipan variant	UpB	203	517475	kcgr	va157	1958	1:20000
Unison fine sandy loam, 2 to 7 percent slopes, eroded	71B2	3070	518467	kdhr	va165	1980	1:20000
Unison fine sandy loam, 7 to 15 percent slopes, eroded	71C2	1225	518468	kdhs	va165	1980	1:20000
Unison cobbly fine sandy loam, 7 to 15 percent slopes, eroded	72C2	1142	518470	kdhv	va165	1980	1:20000
Unison cobbly fine sandy loam, 2 to 7 percent slopes, eroded	72B2	700	518469	kdht	va165	1980	1:20000
Unison cobbly fine sandy loam, 15 to 30 percent slopes, eroded	72D2	673	518471	kdhw	va165	1980	1:20000
Unison loam, 2 to 7 percent slopes	59B	2860	520792	kgxr	va171	1988	1:15840
Unison loam, 7 to 15 percent slopes	59C	1116	520793	kgxs	va171	1988	1:15840
Unison gravelly loam, 2 to 7 percent slopes	60B	829	520796	kgxw	va171	1988	1:15840
Unison cobbly loam, 2 to 7 percent slopes	61B	654	520798	kgxy	va171	1988	1:15840
Unison cobbly loam, 7 to 15 percent slopes	61C	629	520799	kgxz	va171	1988	1:15840
Unison gravelly loam, 7 to 15 percent slopes	60C	626	520797	kgxx	va171	1988	1:15840
Unison loam, 7 to 15 percent slopes	39C	2661	518856	kdx9	va187	1980	1:15840
Unison loam, 15 to 25 percent slopes	39D	1427	518857	kdxb	va187	1980	1:15840
Unison loam, 2 to 7 percent slopes	39B	995	518855	kdx8	va187	1980	1:15840
Unison cobbly loam, 7 to 15 percent slopes	40C	321	518859	kdxd	va187	1980	1:15840
Unison-Urban land complex, 2 to 7 percent slopes	586B	188	3025759	2xvcq	va820		1:12000
Unison cobbly fine sandy loam-Urban land complex, 15 to 45 percent slopes	587E	15	3025766	2xvcr	va820		1:12000
Unison fine sandy loam, 15 to 25 percent slopes, eroded	86D2	13	3025765	2xd69	va820		1:12000
Unison fine sandy loam, 7 to 15 percent slopes, eroded	86C2	9	3025761	2xd68	va820		1:12000
Unison cobbly fine sandy loam, 7 to 15 percent slopes	87C	7	3025767	2xd6b	va820		1:12000
Unison fine sandy loam, 2 to 7 percent slopes	86B	5	3025762	2xd67	va820		1:12000
Unison cobbly fine sandy loam, 15 to 45 percent slopes	87E	1	3025768	2xd6c	va820		1:12000

Map of Series Extent

Approximate geographic distribution of the UNISON 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).