Soil Data Explorer - CALHOUN

Official Series Description

Lab Data Summary

Aggregate lab data for the CALHOUN soil series. This aggregation is based on all pedons with a current taxon name of CALHOUN, 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 CALHOUN 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
116A	M9901783	1999MO017098	Calhoun	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	37.1497765,-90.0864868
116A	M0402303	2004MO023003	CALHOUN	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	36.7850833,-90.3895833
116A	M0402304	2004MO023004	CALHOUN	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	36.78525,-90.3889444
116A	M0402305	2004MO023005	CALHOUN	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	36.7858889,-90.3885833
131A	M8722302	1987MO223002	Calhoun	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	36.9398193,-90.2414551
131A	M9020703	1990MO207003	Calhoun	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	36.8996391,-90.233223
131A	M9901761	1991MO017108	Calhoun	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	37.1406746,-89.9895325
131A	M9322316	1993MO223016	Calhoun	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	37.0458565,-90.1336365
131A	M9722348	1997MO223192	Calhoun	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	36.9400482,-90.2412262
131A	M9822337	1998MO223108	Calhoun	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	37.0411758,-90.1535492
131A	M9822357	1998MO223136	Calhoun	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	37.0554085,-90.1334991
131A	M9901737	1999MO017052	Calhoun	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	37.0534363,-90.0675812
131A	M9901746	1999MO017072	Calhoun	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	37.0763054,-90.1035309
131A	M9901745	1999MO017075	Calhoun	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	37.0761566,-90.1018982
131A	M9901754	1999MO017080	Calhoun	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	37.087471,-90.0480499
131A	M9901772	1999MO017087	Calhoun	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	37.1373787,-89.9809647
131A	M9901770	1999MO017090	Calhoun	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	37.1071548,-90.006218
131A	M9901779	1999MO017091	Calhoun	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	37.1361351,-90.0631485
131A	M9901762	1999MO017094	Calhoun	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	37.1389847,-89.9850159
131A	M9901767	1999MO017103	Calhoun	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	37.1079178,-90.0134888
131A	M0520701	2005MO207001	Calhoun	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	36.9376144,-90.2165298
134	M0220706	2002MO207006	Calhoun	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	36.7322655,-90.0133362
134	M0320717	2003MO207020	Calhoun	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	36.8171272,-90.050827
134	M0320718	2003MO207021	Calhoun	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	36.8323402,-90.0476379
134	40A1357	S1961LA033005	CALHOUN	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	30.3780556,-91.0447235
134	40A1323	S1961LA033008	CALHOUN	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	30.3775005,-91.0916672
n/a	76WH05	1976AR14505	Calhoun	3	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 CALHOUN 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 CALHOUN series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot (updated 2024-10-24), parsed OSD records (updated 2024-10-23) and snapshot of SC database (updated 2024-10-23).

Select annual climate data summaries for the CALHOUN 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 2024-10-23).

Geomorphic description summaries for the CALHOUN 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 2024-10-23).

Competing Series

Soil series competing with CALHOUN share the same family level classification in Soil Taxonomy. Source: parsed OSD records (updated 2024-10-23) and snapshot of the SC database (updated 2024-10-23).

Select annual climate data summaries for the CALHOUN 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 2024-10-23).

Geomorphic description summaries for the CALHOUN 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 2024-10-23).

Soil series sharing subgroup-level classification with CALHOUN, 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 2024-10-23).

Block Diagrams

Click a link below to display the diagram. Note that these diagrams may be from multiple survey areas.

1. LA-2012-02-01-03 | Richland Parish - September 1993

   Relationship of soils, landscape, and parent material in Richland Parish (Soil Survey of Richland Parish, Louisiana; September 1993).

2. LA-2012-04-27-03 | Franklin Parish - August 1981

   Soils, parent material, and landscape position from east to west in the parish (Soil Survey of Franklin Parish, Louisiana; August 1981).

3. LA-2012-04-27-04 | Avoyelles Parish - September 1986

   Pattern of soils, topography, and underlying material in General Soil Map Unit 11 (Soil Survey of Avoyelles Parish, Louisiana; September 1986).

4. LA-2012-04-27-06 | Ascension Parish - August 1976

   Relationship of the soil associations to elevation and parent material, shown by a cross section from Donaldsonville to Port Vincent (Soil Survey of Ascension Parish, Louisiana; August 1976).

5. MO-2012-02-06-21 | Butler County and Part of Ripley County - November 1983

   Typical pattern of soils and parent material in the Calhoun-Amagon association (Soil Survey of Butler County and Part of Ripley County, Missouri; November 1983).

Map Units

Map units containing CALHOUN 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
Calhoun silt loam, 0 to 1 percent slopes	4	14548	565087	2tzs9	ar003	1977	1:20000
Calhoun silt loam	19	2182	564051	lxy6	ar021	1975	1:20000
Calhoun silt loam	8	25730	564153	ly1h	ar031	1976	1:20000
Calhoun silt loam	Ca	1260	564376	ly8p	ar037	1966	1:20000
Calhoun silt loam	Ch	3674	565450	lzdb	ar043	1972	1:24000
Calhoun silt loam, 0 to 1 percent slopes	6A	21414	577970	2t237	ar055	1995	1:24000
Foley-Calhoun complex, 0 to 1 percent slopes	Fc	55224	565806	2v7s5	ar067	1971	1:20000
Foley-Calhoun-McCrory complex	Fm	28996	565807	lzrv	ar067	1971	1:20000
Foley-Calhoun complex, 0 to 1 percent slopes	FcA	39780	564534	2v7s5	ar075	1973	1:20000
Calhoun silt loam	Ca	7220	564076	lxz0	ar077	1974	1:20000
Foley-Calhoun-Bonn complex	Fo	89768	565968	lzy1	ar095	1974	1:20000
Calhoun silt loam, 0 to 1 percent slopes	Ca	11752	565961	2t237	ar095	1974	1:20000
Calhoun silt loam	Ca	6940	564221	ly3p	ar107	1971	1:20000
Foley-Calhoun complex, 0 to 1 percent slopes	Fo	4694	564273	2v7s5	ar111	1973	1:20000
Calhoun silt loam	Ca	6050	564435	lybl	ar123	1964	1:20000
Calhoun silt loam, 0 to 1 percent slopes	4	41073	566665	2tzs9	ar145	1980	1:20000
Calhoun silt loam, 0 to 1 percent slopes	CaA	11622	749392	2t237	ar147	1995	1:24000
Calhoun silt loam, 0 to 1 percent slopes	2	88515	564302	2tzs9	ar680	1980	1:20000
Calhoun silt loam, 0 to 1 percent slopes	Ca	9292	1014623	2tpc6	la005	1972	1:24000
Calhoun silt loam	Ca	24209	1711921	1vgd8	la009	1981	1:24000
Calhoun silt loam, rarely flooded	Cs	5686	1722382	1vt8q	la025	1983	1:24000
Calhoun silt loam	Co	5456	1722381	1vt8p	la025	1983	1:24000
Calhoun silt loam, 0 to 1 percent slopes	CcA	15075	577030	2tpc6	la033	2007	1:24000
Calhoun and Cascilla silt loams, 0 to 2 percent slopes, frequently flooded	CEA	8018	778287	2wmvk	la033	2007	1:24000
Calhoun silt loam, 0 to 1 percent slopes, occasionally flooded	CdA	1495	751814	2tpc7	la033	2007	1:24000
Calhoun and Cascilla silt loams, 0 to 2 percent slopes, frequently flooded	CC	9022	1605251	2wmvk	la037	1992	1:24000
Calhoun silt loam, 0 to 1 percent slopes	Ca	3149	1605249	2tpc6	la037	1992	1:24000
Calhoun silt loam, 0 to 1 percent slopes, occasionally flooded	Cb	296	1605250	2tpc7	la037	1992	1:24000
Calhoun-Duralde complex	Cn	16752	1017120	134db	la039	1970	1:24000
Calhoun silt loam	Ch	6158	1017119	134d9	la039	1970	1:24000
Tenot-Calhoun complex	Th	2779	1017152	134fc	la039	1970	1:24000
Calhoun silt loam	Co	29338	1711089	1vfjf	la041	1979	1:24000
Loring-Calhoun complex, gently undulating	Lr	22167	1711108	1vfk1	la041	1979	1:24000
Calhoun-Calloway complex	Cu	13048	1711090	1vfjg	la041	1979	1:24000
Calhoun silt loam, 0 to 1 percent slopes	Ca	1201	824177	2tpc6	la045	1973	1:24000
Calhoun silt loam, 0 to 1 percent slopes	CaA	190	809213	2tpc6	la055	1976	1:24000
Calhoun silt loam, 0 to 1 percent slopes	Ch	3823	569735	2tpc6	la063	1987	1:24000
Calhoun silt loam, 0 to 1 percent slopes, occasionally flooded	Cn	3804	569736	2tpc7	la063	1987	1:24000
Grenada-Calhoun silt loams complex, 0 to 3 percent slopes	Gu	17228	1714784	2tzsh	la083	1988	1:24000
Calhoun silt loam	Ca	8428	1714764	1vkbz	la083	1988	1:24000
Calhoun-Calloway silt loams, gently undulating	Cc	4119	1714765	1vkc0	la083	1988	1:24000
Calhoun silt loam, 0 to 1 percent slopes	Ch	1499	1721629	2tpc6	la091	1991	1:24000
Calhoun silt loam, 0 to 1 percent slopes, occasionally flooded	Cn	1084	1721630	2tpc7	la091	1991	1:24000
Calhoun silt loam, 0 to 1 percent slopes	Cc	13581	823516	2tpc6	la097	1983	1:24000
Calhoun silt loam, 0 to 1 percent slopes	Ca	230	824139	2tpc6	la099	1974	1:24000
Grenada-Calhoun silt loams complex, 0 to 3 percent slopes	8	112062	570383	2tzsh	la123	1975	1:24000
Calhoun silt loam	1	36170	570369	m4j0	la123	1975	1:24000
Calhoun-Calloway complex	2	12446	570376	m4j7	la123	1975	1:24000
Calhoun silt loam, 0 to 1 percent slopes	Ca	498	1725583	2tpc6	la125	2002	1:24000
Calhoun silt loam, 0 to 1 percent slopes, occasionally flooded	Cb	233	1725584	2tpc7	la125	2002	1:24000
Calhoun and Cascilla silt loams, 0 to 2 percent slopes, frequently flooded	CC	5	1725585	2wmvk	la125	2002	1:24000
Calhoun silt loam, 0 to 1 percent slopes, occasionally flooded	86001	8289	2500779	2pzyc	mo017	2004	1:24000
Calhoun silt loam, 0 to 1 percent slopes	82060	6839	2499109	2pzy3	mo017	2004	1:24000
Calhoun silt loam, 0 to 1 percent slopes, rarely flooded	82078	5423	2571517	2r01t	mo017	2004	1:24000
Calhoun silt loam, 0 to 1 percent slopes, occasionally flooded	86001	60536	2500781	2pzyc	mo023	1982	1:24000
Calhoun silt loam, 0 to 1 percent slopes	82060	13361	2499111	2pzy3	mo023	1982	1:24000
Calhoun silt loam, 0 to 1 percent slopes, frequently flooded	86086	1950	2571676	1vtdy	mo023	1982	1:24000
Calhoun silt loam, 0 to 1 percent slopes, rarely flooded	82078	373	2571669	2r01t	mo023	1982	1:24000
Calhoun silt loam, 0 to 3 percent slopes	90309	149	2571681	2q2fm	mo023	1982	1:24000
Calhoun silt loam, 0 to 1 percent slopes, occasionally flooded	86001	43	2500782	2pzyc	mo031	1978	1:24000
Calhoun silt loam, 0 to 1 percent slopes	82060	4767	2499106	2pzy3	mo069	1977	1:24000
Calhoun silt loam, 0 to 1 percent slopes, rarely flooded	82078	884	2571528	2r01t	mo069	1977	1:24000
Calhoun silt loam, 0 to 1 percent slopes, frequently flooded	86086	489	1722513	1vtdy	mo069	1977	1:24000
Calhoun silt loam, 0 to 3 percent slopes	90309	31	2503519	2q2fm	mo069	1977	1:24000
Calhoun silt loam, 0 to 1 percent slopes, occasionally flooded	86001	5821	2500783	2pzyc	mo181	1982	1:24000
Calhoun silt loam, 0 to 1 percent slopes, occasionally flooded	86001	26789	2500778	2pzyc	mo207	1983	1:24000
Calhoun silt loam, 0 to 1 percent slopes	82060	9585	2499108	2pzy3	mo207	1983	1:24000
Calhoun silt loam, 0 to 1 percent slopes, rarely flooded	82078	4470	2689928	2r01t	mo207	1983	1:24000
Calhoun silt loam, 0 to 3 percent slopes	90309	1107	2503520	2q2fm	mo207	1983	1:24000
Calhoun silt loam, 0 to 1 percent slopes, frequently flooded	86086	6	2689940	1vtdy	mo207	1983	1:24000
Calhoun silt loam, 0 to 1 percent slopes, occasionally flooded	86001	4757	2500780	2pzyc	mo223	2004	1:24000
Calhoun silt loam, 0 to 1 percent slopes, rarely flooded	82078	1267	2571515	2r01t	mo223	2004	1:24000
Calhoun silt loam, 0 to 1 percent slopes	80A	402	331796	c483	ms007	1997	1:24000
Calhoun silt loam	Ca	2562	331802	c489	ms009	1972	1:20000
Calhoun silt loam, very gently sloping phase	Cb	276	567720	m1rk	ms033	1955	1:24000
Calhoun silt loam, nearly level phase	Ca	231	567719	m1rj	ms033	1955	1:24000
Calhoun silt loam	Ca	2171	567904	m1yh	ms049	1976	1:20000
Cascilla-Calhoun association	CC	2785	568215	m28j	ms089	1981	1:20000
Calhoun silt loam	Ca	2784	568217	m28l	ms089	1981	1:20000
Calhoun silt loam	Ch	1190	333637	c65h	ms113	1965	1:15840
Calhoun-Bonn complex	Cb	5828	568507	m2ky	ms135	1966	1:24000
Calhoun silt loam	Ca	129	568506	m2kx	ms135	1966	1:24000
Calhoun silt loam	Ca	3360	568779	m2vq	ms163	1969	1:20000
Calhoun silt loam	Ca	4515	566740	m0qy	tn033	1985	1:24000
Calhoun and Henry silt loams	Ca	8901	567191	m16h	tn113	1974	1:20000

Map of Series Extent

Approximate geographic distribution of the CALHOUN 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 2024-10-30).