Soil Data Explorer - DOWLING

Official Series Description

Lab Data Summary

Aggregate lab data for the DOWLING soil series. This aggregation is based on all pedons with a current taxon name of DOWLING, 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 DOWLING were used in the calculation. Source: KSSL snapshot (updated 2020-03-13). Methods used to assemble the KSSL snapshot used by SoilWeb / SDE

There are insufficient data to create the lab data summary figure.

Water Balance

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

There are insufficient data to create the annual climate figure.

Geomorphic description summaries for the DOWLING 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.

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

Soil series sharing subgroup-level classification with DOWLING, 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. MS-2012-02-06-11 | Tate County - March 1967

   Distribution of soils in the Alligator-Dowling soil association (Soil Survey of Tate County, Mississippi; March 1967).

2. MS-2012-04-26-10 | Humphreys County - September 1959

   Northwest-southeast cross section showing relation of soils and topography in Humphreys County, Miss (Soil Survey of Humphreys County, Mississippi; September 1959).

3. MS-2012-04-27-01 | Quitman County - December 1958

   Soil associations, Quitman County, Miss. (Soil Survey of Quitman County, Mississippi; December 1958).

4. MS-2012-04-27-03 | Sunflower County - February 1959

   East-west cross section, 2 miles south of Doddsville, showing relation of soils to topography (Soil Survey of Sunflower County, Mississippi; February 1959).

5. MS-2012-04-27-10 | Bolivar County - December 1958

   Soil associations in Bolivar County: 1. Alluvial soils; 2. Commerce-Robinsonville-Crevasse; 3. Forestdale-Dundee-Bosket; 4. Brittain-Pearson-Dexter; 5. Dowling-Alligator-Sharkey (Soil Survey of Bolivar County, Mississippi; December 1958).

Map Units

Map units containing DOWLING 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
Dowling clay, 0 to 1 percent slopes, frequently flooded, tensas	DZ	15340	3121699	2zfyj	la009	1981	1:24000
Dowling clay, 0 to 1 percent slopes, frequently flooded, deltaic plain	DX	185	3121698	2zfyk	la009	1981	1:24000
Dowling clay, 0 to 1 percent slopes, frequently flooded, tensas	DZ	5553	1722389	2zfyj	la025	1983	1:24000
Dowling clay, 0 to 1 percent slopes, frequently flooded, tensas	DZ	10803	3219831	2zfyj	la029	1983	1:24000
Dowling soils, 0 to 1 percent slopes, frequently flooded	DW	520	3219832	2tpnj	la029	1983	1:24000
Dowling soils, 0 to 1 percent slopes, frequently flooded	DW	47809	1451368	2tpnj	la047	1975	1:24000
Dowling association, frequently flooded	DO	14451	1451367	1kq89	la047	1975	1:24000
Dowling clay, 0 to 1 percent slopes, frequently flooded, deltaic plain	DX	2237	808635	2zfyk	la055	1976	1:24000
Dowling clay, 0 to 1 percent slopes, frequently flooded, tensas	DZ	7116	3121700	2zfyj	la059	1986	1:24000
Dowling clay, 0 to 1 percent slopes, frequently flooded, deltaic plain	DX	5169	1678428	2zfyk	la077	1980	1:24000
Dowling soils, 0 to 1 percent slopes, frequently flooded	DW	3798	1678429	2tpnj	la077	1980	1:24000
Dowling clay, 0 to 1 percent slopes, frequently flooded, deltaic plain	DX	23051	823805	2zfyk	la097	1983	1:24000
Dowling soils, 0 to 1 percent slopes, frequently flooded	DW	48789	1451686	2tpnj	la099	1974	1:24000
Dowling clay, 0 to 1 percent slopes, frequently flooded, deltaic plain	DX	21828	3219835	2zfyk	la099	1974	1:24000
Dowling clay, 0 to 1 percent slopes, frequently flooded	DoA	11092	577266	mcph	la107	2001	1:24000
Sharkey-Dowling clays, 0 to 3 percent slopes	SsB	10585	577265	mcpg	la107	2001	1:24000
Dowling clay, frequently flooded	Fa	555	1397380	1hx2s	la121	2004	1:24000
Dowling soils, 0 to 1 percent slopes, frequently flooded	DW	7654	3219842	2tpnj	la125	2002	1:24000
Dowling clay, 0 to 1 percent slopes, frequently flooded, tensas	DZ	241	3219841	2zfyj	la125	2002	1:24000
Dowling clay, 0 to 1 percent slopes, frequently flooded, deltaic plain	DX	136	3219840	2zfyk	la125	2002	1:24000
Dowling clay (sharkey)	Dc	71411	567484	m1hy	ms011	1956	1:20000
Dowling soils, overwash phases (sharkey)	Dd	23496	567485	m1hz	ms011	1956	1:20000
Dowling clay (sharkey)	Da	32569	567631	m1np	ms027	1956	1:24000
Dowling soils (sharkey)	Db	17856	567632	m1nq	ms027	1956	1:24000
Dowling soils (sharkey)	Db	2172	567733	m1rz	ms033	1955	1:24000
Dowling clay (sharkey)	Da	2009	567732	m1ry	ms033	1955	1:24000
Dowling clay, frequently flooded	Do	8167	2693430	2rv5w	ms051	1997	1:20000
Alligator, Tensas, and Dowling soils, frequently flooded	ATF	4342	567943	m1zr	ms051	1997	1:20000
Dowling clay (alligator)	Da	21610	568005	m21r	ms053	1956	1:20000
Alligator, Dowling, and Forestdale soils, frequently flooded (alligator, alligator, forestdale)	An	18804	2693432	2rv64	ms053	1956	1:20000
Alligator-Dowling clays, frequently flooded (alligator, alligator)	Am	10628	2693442	2rv63	ms053	1956	1:20000
Dowling soils (alligator)	Dc	7926	568007	m21t	ms053	1956	1:20000
Dowling clay, frequently flooded (alligator)	Db	5754	2693438	2rv65	ms053	1956	1:20000
Dowling soils, frequently flooded (alligator)	Dd	1405	2693439	2rv66	ms053	1956	1:20000
Sharkey and Dowling clays, frequently flooded (sharkey, sharkey)	Sr	103806	2693448	2rv6g	ms055	1960	1:20000
Dowling clay, frequently flooded (sharkey)	Da	16994	2693445	2rv6c	ms055	1960	1:20000
Dowling soils, occasionally flooded (sharkey)	Db	777	2693446	2rv6d	ms055	1960	1:20000
Alligator, Tensas, and Dowling soils, frequently flooded	7	19494	568120	m25g	ms083	1997	1:24000
Dowling muck	23	11600	568119	m25f	ms083	1997	1:24000
Dowling clay and silty clay (sharkey)	Da	47320	568375	m2fp	ms119	1956	1:24000
Alligator and Dowling clays (sharkey)	Ae	45716	568352	m2dy	ms119	1956	1:24000
Sharkey, Alligator, and Dowling soils, frequently flooded (sharkey, alligator, sharkey)	Sr	103146	2693475	2rp1v	ms125	1960	1:20000
Dowling clay, frequently flooded (sharkey)	Da	9883	2693476	2rp1p	ms125	1960	1:20000
Dowling soils, occasionally flooded (sharkey)	Db	815	2693477	2rp1q	ms125	1960	1:20000
Dowling clay (sharkey)	Db	50658	568457	m2jb	ms133	1956	1:20000
Dowling soils, overwash phases (sharkey)	Dc	41489	568458	m2jc	ms133	1956	1:20000
Alligator-Dowling association (alligator, alligator)	As	3377	568558	m2ml	ms137	1964	1:15840
Dowling clay (alligator)	Dc	602	568566	m2mv	ms137	1964	1:15840
Dowling clay, 0 to 1 percent slopes, ponded	125	2656	1715964	1vllp	ms143	2006	1:24000
Sharkey, Tunica, and Dowling clays, frequently flooded (sharkey, tunica, sharkey)	SDT	45252	2693462	2rp20	ms149	1962	1:15840
Dowling clay, frequently flooded (sharkey)	Do	8277	2693460	2rp1z	ms149	1962	1:15840
Dowling clay (sharkey), 0 to 2 percent slopes, occasionally flooded	Da	48900	568742	m2tj	ms151	1959	1:20000
Dowling soils (sharkey), 0 to 2 percent slopes, occasionally flooded	Db	11141	568743	m2tk	ms151	1959	1:20000
Dowling clay, submerged	8	4698	571042	m56q	ms157	2006	1:24000

Map of Series Extent

Approximate geographic distribution of the DOWLING 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).