Soil Data Explorer - DECATUR

Official Series Description

Lab Data Summary

Aggregate lab data for the DECATUR soil series. This aggregation is based on all pedons with a current taxon name of DECATUR, 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 DECATUR were used in the calculation. Source: KSSL snapshot (updated 2020-03-13). 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
122	03N0736	2003TN051004	Decatur	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	35.1393623,-86.1911087
122	54KY-227-010	54KY-227-010	Decatur	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	36.9011879,-86.528038
128	S00AL-015-1	00AL015001-pgm	Decatur	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	33.7347222,-85.9072222
128	S01AL-089-5	01AL089005-pgm	Decatur	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	34.6635556,-86.6648333
128	S71AL-009-6	71AL009006-pgm	Decatur	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	34.2236175537109,-86.4594497680664
128	S77AL-033-2	77AL033002-pgm	Decatur	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	34.725284576416,-87.6805572509766
128	S77AL-033-3	77AL033003-pgm	Decatur	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	34.7394523620605,-87.5125045776367
128	S77AL-033-4	77AL033004-pgm	Decatur	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	34.6816711425781,-87.64111328125
128	S77AL-033-6	77AL033006-pgm	Decatur	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	34.830005645752,-87.9766693115234
128	40A4949	S1953TN009003	Decatur	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	35.7599983,-83.9758301
128	40A4950	S1953TN009004	Decatur	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	35.6977768,-84.0477753
128	03N0926	S2003AL089005	DECATUR	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	34.8937222,-86.6025
130B	40A4344	S1968TN009001	Decatur	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	35.6666679,-83.9166641

Water Balance

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

Select annual climate data summaries for the DECATUR 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 DECATUR 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 DECATUR share the same family level classification in Soil Taxonomy. Source: parsed OSD records (updated 2023-10-02) and snapshot of the SC database (updated 2023-10-02).

Select annual climate data summaries for the DECATUR 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 DECATUR 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 mountains figure.

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

Soil series sharing subgroup-level classification with DECATUR, 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. AL-2012-04-24-13 | Calhoun County - September 1961

   Some of the general soil areas, or soil associations, in relation to topographic position and parent material (Soil Survey of Calhoun County, Alabama; September 1961).

2. KY-2012-02-01-69 | Wayne County - March 1990

   The relationship of soils to topography and underlying material in the Decatur-Bewleyville-Clarksville general soil map unit (Soil Survey of Wayne County, Kentucky; March 1990).

3. TN-2012-03-19-17 | Loudon County - June 1961

   Diagram showing distribution and pattern of soils in area 5 (Soil Survey of Loudon County, TN; 1961).

Map Units

Map units containing DECATUR 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
Decatur loam, 2 to 6 percent slopes	DcB	1293	328361	2vt4w	al009	1974	1:24000
Decatur loam, 6 to 10 percent slopes	DcC	646	328362	2vt4x	al009	1974	1:24000
Decatur silty clay loam, 4 to 15 percent slopes, eroded	DtC2	621	328363	c0pc	al009	1974	1:24000
Decatur and Cumberland clay loams, 2 to 6 percent slopes, severely eroded	DcB3	7168	523307	kkjw	al015	1959	1:20000
Decatur and Cumberland clay loams, 6 to 10 percent slopes, severely eroded	DcC3	5052	523308	kkjx	al015	1959	1:20000
Decatur and Cumberland loams, 2 to 6 percent slopes, eroded	DdB2	3342	523311	kkk0	al015	1959	1:20000
Decatur and Cumberland clay loams, 10 to 25 percent slopes, severely eroded	DcD3	1438	523309	kkjy	al015	1959	1:20000
Decatur and Cumberland loams 6 to 10 percent slopes, eroded	DdC2	643	523312	kkk1	al015	1959	1:20000
Decatur and Cumberland loams, 0 to 2 percent slopes	DdA	382	523310	kkjz	al015	1959	1:20000
Decatur and Cumberland loams, 10 to 25 percent slopes, eroded	DdD2	324	523313	kkk2	al015	1959	1:20000
Decatur loam, 2 to 6 percent slopes	DcB	992	522990	2vt4w	al019	1973	1:20000
Decatur silty clay loam, 6 to 15 percent slopes	DdC	740	522992	kk6q	al019	1973	1:20000
Decatur loam, 6 to 10 percent slopes	DcC	520	522991	2vt4x	al019	1973	1:20000
Decatur silt loam, 2 to 6 percent slopes	DaB	45546	328690	2wc2s	al033	1986	1:20000
Decatur-Urban land complex, 2 to 8 percent slopes	DeB	7537	328692	2ykd8	al033	1986	1:20000
Decatur silty clay loam, 6 to 10 percent slopes, eroded	DaC2	5192	328691	2wc2v	al033	1986	1:20000
Decatur-Urban land complex, 8 to 15 percent slopes	DeD	805	328693	2ykd9	al033	1986	1:20000
Decatur silt loam, 2 to 6 percent slopes	DeB	1479	1895719	2vt4v	al037	2006	1:24000
Decatur silty clay loam, 2 to 6 percent slopes, severely eroded	DcB3	3278	329555	2ykdd	al059	1962	1:15840
Decatur silty clay loam, 6 to 10 percent slopes, severely eroded	DcC3	2252	329556	2wc2y	al059	1962	1:15840
Decatur silt loam, 2 to 6 percent slopes, eroded	DaB2	1451	329554	2ykdb	al059	1962	1:15840
Decatur silty clay loam, 10 to 15 percent slopes, severely eroded	DcD3	438	329557	2ykdc	al059	1962	1:15840
Rough gullied land, Dewey, Cumberland, and Colbert soil material	RgD	1346	522945	kk56	al071	1943	1:24000
Decatur-Urban land complex, 2 to 8 percent slopes	12	8730	329909	c297	al073	1980	1:24000
Decatur silt loam, 2 to 8 percent slopes	10	2320	329907	c295	al073	1980	1:24000
Decatur silt loam, 8 to 15 percent slopes	11	1080	329908	c296	al073	1980	1:24000
Decatur silt loam, 2 to 6 percent slopes	DaB	20412	523038	2wc2s	al077	1973	1:20000
Decatur silty clay loam, 6 to 10 percent slopes, eroded	DcC2	3253	523039	2wc2v	al077	1973	1:20000
Decatur silty clay loam, 2 to 6 percent slopes, eroded	Dc	17467	330106	2wc2q	al079	1950	1:20000
Decatur silty clay, 6 to 10 percent slopes, severely eroded	De	6151	330108	2ykdf	al079	1950	1:20000
Decatur silty clay loam, 6 to 12 percent slopes, eroded	Db	1784	330105	2s8m4	al079	1950	1:20000
Decatur silty clay, 2 to 6 percent slopes, severely eroded	Df	1095	330109	2ykd6	al079	1950	1:20000
Decatur silty clay, 6 to 12 percent slopes, gullied	Dd	343	330107	2ykd7	al079	1950	1:20000
Decatur silt loam, 2 to 6 percent slopes	Da	331	330104	2wc2s	al079	1950	1:20000
Decatur silty clay loam, 2 to 6 percent slopes, eroded	DbB2	22781	3086629	2wc2q	al083	1953	1:20000
Decatur silt loam, 0 to 2 percent slopes	Dtv	7130	3086630	2wc2r	al083	1953	1:20000
Decatur silty clay loam, 6 to 10 percent slopes, severely eroded	Dmd	4378	3086628	2wc2y	al083	1953	1:20000
Decatur silty clay loam eroded rolling phase	Dmn	1274	522759	kjz6	al083	1953	1:20000
Rough gullied land (Decatur, Dewey, and Cumberland soil materials)	RgD	336	522801	kk0k	al083	1953	1:20000
Dewey-Decatur silty clay loams severely eroded hilly phases	DDr	167	522749	kjyw	al083	1953	1:20000
Decatur silty clay loam, 2 to 6 percent slopes, eroded	DbB2	65134	3086634	2wc2q	al089	1958	1:24000
Decatur silty clay, 6 to 10 percent slopes, severely eroded	Dd	5690	3086631	2wc2x	al089	1958	1:24000
Decatur silty clay, 6 to 25 percent slopes, gullied	De	2977	3086632	2wc2w	al089	1958	1:24000
Decatur silt loam, 0 to 2 percent slopes	Da	2617	3086637	2wc2r	al089	1958	1:24000
Decatur silty clay loam, 6 to 10 percent slopes, eroded	Dg	2141	3086633	2wc2v	al089	1958	1:24000
Decatur silty clay loam, 2 to 6 percent slopes, eroded	Db	2947	331058	2wc2q	al103	1949	1:15840
Decatur silt loam, 2 to 6 percent slopes	Da	606	331057	2wc2s	al103	1949	1:15840
Rough gullied land, decatur and cumberland soil materials	Rb	441	331149	c3l7	al103	1949	1:15840
Decatur silty clay loam, 6 to 12 percent slopes, severely eroded	Dc	422	331059	2wc0h	al103	1949	1:15840
Decatur silt loam, 6 to 10 percent slopes	DuC	6870	331436	c3wh	al117	1982	1:24000
Decatur silt loam, 2 to 6 percent slopes	DuB	2390	331435	2vt4v	al117	1982	1:24000
Decatur-Urban land complex, 2 to 10 percent slopes	DuX	1230	331433	c3wd	al117	1982	1:24000
Decatur silt loam, 10 to 15 percent slopes	DuD	830	331437	c3wj	al117	1982	1:24000
Decatur silt loam, 2 to 6 percent slopes	DdB	26638	523226	2vt4v	al121	1969	1:20000
Decatur silty clay loam, 4 to 10 percent slopes, eroded	DeC2	14610	523227	kkg9	al121	1969	1:20000
Decatur silty clay loam, 10 to 25 percent slopes, severely eroded	DeE3	3593	523228	kkgb	al121	1969	1:20000
Urban land-Decatur complex	Ud	1562	523269	kkhn	al121	1969	1:20000
Decatur loam, 0 to 2 percent slopes	DcA	862	523225	2w2mb	al121	1969	1:20000
Decatur loam, 2 to 8 percent slopes	15	2286	331507	2w2mf	al125	1980	1:20000
Decatur loam, 2 to 6 percent slopes	DaB	5044	1611676	2vt4w	ga015	2013	1:12000
Decatur loam, 6 to 10 percent slopes	DaC	3972	1611677	2vt4x	ga015	2013	1:12000
Decatur loam, 10 to 15 percent slopes	DaD	3619	884417	yp9l	ga015	2013	1:12000
Decatur loam, 15 to 25 percent slopes	DaE	1889	1611679	1r32n	ga015	2013	1:12000
Decatur-Urban land complex, 0 to 15 percent slopes	DbD	627	2554236	2qvpr	ga015	2013	1:12000
Decatur-Urban land complex, 15 to 30 percent slopes	DbE	198	2554237	2qvps	ga015	2013	1:12000
Decatur silty clay loam, 10 to 15 percent slopes, moderately eroded, southern phase	DcD2	365	531172	2zxsd	ga047	1987	1:20000
Decatur silt loam, 2 to 6 percent slopes, southern phase	DaB	315	531169	2zxs9	ga047	1987	1:20000
Decatur silty clay loam, 6 to 10 percent slopes, moderately eroded, southern phase	DcC2	145	531171	2zxsc	ga047	1987	1:20000
Decatur silt loam, 6 to 10 percent slopes, southern phase	DaC	140	531170	2zxsb	ga047	1987	1:20000
Decatur loam, 6 to 10 percent slopes	DcC	10885	531242	2vt4x	ga621	1975	1:20000
Decatur clay, 15 to 25 percent slopes, severely eroded	DeE2	10660	531244	2w2lx	ga621	1975	1:20000
Decatur loam, 2 to 6 percent slopes	DcB	8685	531241	2vt4w	ga621	1975	1:20000
Decatur clay, 10 to 15 percent slopes, eroded	DeD2	4570	531243	ktsw	ga621	1975	1:20000
Decatur silt loam, 6 to 12 percent slopes	DeC	4024	550067	lgd3	ky231	1985	1:20000
Decatur silty clay loam, eroded undulating phase	Dg	178	526881	kp85	tn011	1951	1:20000
Decatur silty clay loam, 5 to 12 percent slopes, eroded	Df	155	526880	2w2lc	tn011	1951	1:20000
Decatur silty clay, severely eroded, sloping phase	Da	381	524888	km5w	tn031	1956	1:20000
Decatur silty clay loam, eroded, gently sloping phase	Db	290	524889	km5x	tn031	1956	1:20000
Decatur silty clay loam, 2 to 6 percent slopes, eroded	Dc	4012	527177	2s8ln	tn051	1950	1:20000
Decatur silty clay loam, 6 to 12 percent slopes, eroded	Dd	1517	527178	2wc0p	tn051	1950	1:20000
Decatur silty clay, 6 to 12 percent slopes, severely eroded	Db	859	527176	2s8m1	tn051	1950	1:20000
Decatur silt loam, 2 to 6 percent slopes	Da	111	527175	2s8lj	tn051	1950	1:20000
Decatur silty clay loam, 5 to 12 percent slopes, eroded	Dl	176	525086	2w2lc	tn059	1954	1:15840
Decatur silty clay loam, eroded hilly phase	Dk	81	525085	kmd7	tn059	1954	1:15840
Decatur silty clay, 12 to 25 percent slopes, severely eroded	Dh	67	525084	2w2lk	tn059	1954	1:15840
Decatur silty clay loam, rolling, 5 to 12 percent slope	58C	428	525304	kmm9	tn063	2007	1:24000
Decatur silty clay loam, hilly, 12 to 25 percent slopes	58D	38	525305	kmmb	tn063	2007	1:24000
Decatur silt loam, 2 to 5 percent slopes, eroded	DcB2	1680	525455	2w2l7	tn089	1991	1:24000
Decatur silt loam, eroded gently sloping phase	Da	2427	527630	kq1b	tn099	1955	1:20000
Decatur silty clay loam, severely eroded sloping phase	Dd	1378	527633	kq1f	tn099	1955	1:20000
Decatur silty clay loam, severely eroded gently sloping phase	Dc	557	527632	kq1d	tn099	1955	1:20000
Decatur silt loam, 5 to 12 percent slopes, eroded	Db	350	527631	2ykdt	tn099	1955	1:20000
Decatur silty clay loam, 5 to 12 percent slopes, eroded	DcC2	2635	525920	2w2lc	tn105	1958	1:15840
Decatur silty clay loam, severely eroded sloping phase	DcC3	874	525921	kn86	tn105	1958	1:15840
Decatur silty clay loam, 12 to 20 percent slopes, severely eroded	DcD3	873	525923	2w2lm	tn105	1958	1:15840
Decatur silty clay loam, eroded moderately steep phase	DcD2	516	525922	kn87	tn105	1958	1:15840
Decatur silty clay loam, eroded gently sloping phase	DcB2	371	525919	kn84	tn105	1958	1:15840
Cumberland and Decatur silty clay loams, severely eroded steep phases	CrE3	362	525916	kn81	tn105	1958	1:15840
Decatur silt loam, 2 to 5 percent slopes, eroded	DcB2	628	526119	2w2l7	tn107	1999	1:24000
Decatur silt loam, 5 to 12 percent slopes, eroded	DcC2	548	526118	kngk	tn107	1999	1:24000
Decatur silt loam, 12 to 20 percent slopes, eroded	DcD2	7	526117	2w2lp	tn107	1999	1:24000
Cumberland silty clay loam, eroded, rolling phase (Decatur)	Cn	732	526247	knlq	tn115	1951	1:20000
Cumberland silty clay loam, severely eroded, hilly phase (Decatur)	Cp	636	526249	knls	tn115	1951	1:20000
Cumberland silty clay loam, eroded hilly phase (Decatur)	Co	418	526248	knlr	tn115	1951	1:20000
Cumberland silty clay loam, eroded undulating phase (Decatur)	Cm	348	526246	knlp	tn115	1951	1:20000
Decatur silt loam, 5 to 12 percent slopes	DcC	6750	527866	2w2l9	tn123	1974	1:20000
Decatur silty clay loam, 5 to 12 percent slopes, severely eroded	DdC3	2489	527868	kq90	tn123	1974	1:20000
Decatur silty clay loam, 12 to 20 percent slopes, severely eroded	DdD3	1848	527869	2w2lm	tn123	1974	1:20000
Decatur silt loam, 2 to 5 percent slopes	DcB	1726	527865	kq8x	tn123	1974	1:20000
Decatur silt loam, 12 to 20 percent slopes, eroded	DcD2	1492	527867	2w2lp	tn123	1974	1:20000
Decatur silt loam, 5 to 12 percent slopes, eroded	DeC2	2595	523742	kkzx	tn139	1997	1:24000
Decatur silt loam, 12 to 20 percent slopes, eroded	DeD2	715	523743	2w2lp	tn139	1997	1:24000
Decatur silt loam, 2 to 5 percent slopes, eroded	DeB2	573	523741	2w2l7	tn139	1997	1:24000
Decatur silt loam, 5 to 12 percent slopes	DcC	1743	528542	2w2l9	tn602	1973	1:15840
Decatur silt loam, 12 to 20 percent slopes	DcD	468	528543	kqzs	tn602	1973	1:15840
Decatur silt loam, 5 to 12 percent slopes, eroded	DeC2	1651	528641	kr2y	tn604	1974	1:20000
Decatur silt loam, 2 to 5 percent slopes	DeB	1017	528640	kr2x	tn604	1974	1:20000
Decatur silt loam, 5 to 12 percent slopes, eroded	DcC2	3292	529655	ks4n	tn608	2001	1:24000
Decatur silt loam, 12 to 25 percent slopes, eroded	DcD2	1883	529656	ks4p	tn608	2001	1:24000
Decatur silt loam, 2 to 5 percent slopes, eroded	DcB2	443	529654	2w2l7	tn608	2001	1:24000
Decatur silty clay loam, 5 to 12 percent slopes, eroded	Dl	6804	1899476	2w2lc	tn609	1955	1:20000
Decatur silty clay, 12 to 25 percent slopes, severely eroded	Dh	1772	1899474	2w2lk	tn609	1955	1:20000
Decatur silty clay loam, eroded moderately steep phase	Dm	1464	1899477	21rkg	tn609	1955	1:20000
Decatur silty clay loam, eroded gently sloping phase	Dk	1375	1899475	21rkd	tn609	1955	1:20000
Decatur silty clay, severely eroded sloping phase	Dg	457	1899473	21rkb	tn609	1955	1:20000

Map of Series Extent

Approximate geographic distribution of the DECATUR 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).