Soil Data Explorer - SOUTHAM

Official Series Description

Lab Data Summary

Aggregate lab data for the SOUTHAM soil series. This aggregation is based on all pedons with a current taxon name of SOUTHAM, 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 SOUTHAM 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
53B	85ND043508	85ND043508	Southam	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	47.250418,-99.6758066
53B	88ND023067	88ND023067	Southam	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	48.7213889,-102.9819444

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the SOUTHAM 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 SOUTHAM 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 SOUTHAM 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 SOUTHAM 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 SOUTHAM 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 SOUTHAM 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 SOUTHAM 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 hills figure.

There are insufficient data to create the 3D mountains figure.

There are insufficient data to create the 3D terrace figure.

Soil series sharing subgroup-level classification with SOUTHAM, 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. ND-2010-09-27-09 | Towner County -

   Typical pattern of soils and underlying material in the Barnes-Hamerly-Buse association (Soil Survey of Towner County, North Dakota).

2. ND-2010-09-27-10 | Towner County -

   Typical pattern of soils and underlying material in the Hamerly-Barnes-Parnell association (Soil Survey of Towner County, North Dakota).

3. ND-2012-02-07-24 | Dickey County - May 1993

   Typical pattern of soils and parent material in the Williams-Bowbells-Zahl association (Soil Survey of Dickey County, North Dakota; May 1993).

4. ND-2012-02-07-38 | Foster County - July 1995

   Typical pattern of soils and parent material in the Barnes-Svea-Buse association (Soil Survey of Foster County, North Dakota; July 1995).

5. ND-2012-02-08-26 | McIntosh County - 2001

   Typical pattern of soils and underlying material in the Overly-Nutley-Rusklyn association (Soil Survey of McIntosh County, North Dakota; 2001).

6. ND-2012-02-08-54 | Stutsman County - June 1995

   Typical pattern of soils and parent material in the Barnes-Buse association (Soil Survey of Stutsman County, North Dakota; June 1995).

7. SD-2010-11-01-01 | Brookings County - 2004

   Typical pattern of soils and parent material in the Poinsett-Buse-Waubay association (Soil Survey of Brookings County, South Dakota; 2004).

8. SD-2010-11-01-08 | Hamlin County - 2003

   Typical pattern of soils and underlying material in the Poinsett-Waubay-Buse association (Soil Survey of Hamlin County, South Dakota; 2003).

9. SD-2012-03-14-14 | Clark County - 1999

   Typical pattern of soils and underlying material in the Buse-Barnes-Southam association (Soil Survey of Clark County, SD; 1999).

10. SD-2012-03-14-16 | Clark County - 1999

    Typical pattern of soils and underlying material in the Poinsett-Waubay-Buse association (Soil Survey of Clark County, SD; 1999).

11. SD-2012-03-15-62 | Kingsbury County - November 1997

    Typical pattern of soils and underlying material in the Poinsett-Waubay-Buse association (Soil Survey of Kingsbury County, SD; 1997).

12. SD-2012-03-15-63 | Kingsbury County - November 1997

    Typical pattern of soils and underlying material in the Poinsett-Hetland association (Soil Survey of Kingsbury County, SD; 1997).

Map Units

Map units containing SOUTHAM 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
Southam silty clay loam, 0 to 1 percent slopes	J48A	3598	1149503	2wbpr	mn081	2007	1:12000
Southam silty clay loam, 0 to 1 percent slopes	J48A	2404	1486235	2wbpr	mn083	2008	1:12000
Southam silty clay loam, 0 to 1 percent slopes	J48A	1844	1149505	2wbpr	mn101	2008	1:12000
Southam silty clay loam, 0 to 1 percent slopes	J48A	99	1149504	2wbpr	mn117	2005	1:12000
Southam silty clay loam, 0 to 1 percent slopes	J48A	470	1481664	2wbpr	mn173	1979	1:20000
Southam silty clay loam, 0 to 1 percent slopes	G4A	16202	2573577	2q3tr	nd003	1988	1:20000
Southam silty clay loam, 0 to 1 percent slopes	F4A	16944	2587605	2q3w8	nd005		1:12000
Southam silty clay loam, 0 to 1 percent slopes	G4A	2626	2573815	2q3tr	nd005		1:12000
Southam silty clay loam, 0 to 1 percent slopes	F4A	2699	2585887	2q3w8	nd009	1981	1:20000
Southam silty clay loam, 0 to 1 percent slopes	C5A	7492	2564067	2q539	nd013	1991	1:24000
Southam silt loam, 0 to 1 percent slopes	1709	2856	341090	cfxx	nd013	1991	1:24000
Southam silty clay loam, 0 to 1 percent slopes	F4A	6	2585821	2q3w8	nd013	1991	1:24000
Southam silty clay loam, 0 to 1 percent slopes	C5A	6729	2564165	2q539	nd015	1967	1:20000
Southam silty clay loam, 0 to 1 percent slopes	G4A	2412	2575146	2q3tr	nd017	1983	1:20000
Southam silty clay loam, 0 to 1 percent slopes	I428A	52	2640911	1nyzr	nd017	1983	1:20000
Southam silty clay loam, 0 to 1 percent slopes	F4A	8057	2587503	2q3w8	nd019	1987	1:20000
Southam silty clay loam, 0 to 1 percent slopes	C5A	9056	2564231	2q539	nd021	1989	1:20000
Southam silty clay loam, 0 to 1 percent slopes	G4A	7148	2575262	2q3tr	nd021	1989	1:20000
Southam silty clay loam, 0 to 1 percent slopes	C5A	16182	2564278	2q539	nd023	1992	1:24000
Southam silt loam, 0 to 1 percent slopes	1709	2781	341291	cg4d	nd023	1992	1:24000
Southam silty clay loam, 0 to 1 percent slopes	G4A	7150	2575401	2q3tr	nd027		1:12000
Southam silty clay loam, 0 to 1 percent slopes	C5A	2901	2564332	2q539	nd029	1979	1:20000
Southam silty clay loam, 0 to 1 percent slopes	G4A	5508	2576378	2q3tr	nd031	1990	1:20000
Southam silty clay loam, 0 to 1 percent slopes	C5A	93	2564382	2q539	nd031	1990	1:20000
Southam silty clay loam, 0 to 1 percent slopes	G4A	139	2576539	2q3tr	nd035	1980	1:20000
Southam silty clay loam, 0 to 1 percent slopes	I428A	17	2642559	1nyzr	nd035	1980	1:20000
Southam silty clay loam, 0 to 1 percent slopes	G4A	9022	2576563	2q3tr	nd039	1991	1:24000
Southam silty clay loam, 0 to 1 percent slopes	C5A	25180	2564416	2q539	nd043	1985	1:20000
Southam silty clay loam, 0 to 1 percent slopes	C5A	7100	2566460	2q539	nd045	1966	1:20000
Southam silty clay loam, 0 to 1 percent slopes	G4A	1868	2577024	2q3tr	nd045	1966	1:20000
Southam silty clay loam, 0 to 1 percent slopes	C5A	22326	2566516	2q539	nd047	1992	1:20000
Southam silty clay loam, 0 to 1 percent slopes	G4A	4612	2571330	2q3tr	nd049	1987	1:20000
Southam silty clay loam, 0 to 1 percent slopes	F4A	1977	2585585	2q3w8	nd049	1987	1:20000
Southam silty clay loam, 0 to 1 percent slopes	C5A	385	2566559	2q539	nd049	1987	1:20000
Southam silty clay loam, 0 to 1 percent slopes	C5A	18747	2566606	2q539	nd051	1992	1:24000
Southam silty clay loam, 0 to 1 percent slopes	C5A	14466	2566707	2q539	nd055	1974	1:20000
Southam silty clay loam, 0 to 1 percent slopes	G4A	42	2577213	2q3tr	nd055	1974	1:20000
Southam silty clay loam, 0 to 1 percent slopes	C5A	12561	2566764	2q539	nd061	1988	1:24000
Southam silty clay loam, 0 to 1 percent slopes	F4A	86	2585526	2q3w8	nd061	1988	1:24000
Southam silty clay loam, 0 to 1 percent slopes	F4A	8323	2587311	2q3w8	nd063		1:12000
Southam silty clay loam, 0 to 1 percent slopes	G4A	8261	2577248	2q3tr	nd063		1:12000
Southam silty clay loam, 0 to 1 percent slopes	F4A	16181	2587178	2q3w8	nd069	1975	1:20000
Southam silty clay loam, 0 to 1 percent slopes	G4A	3076	2582252	2q3tr	nd069	1975	1:20000
Southam silty clay loam, 0 to 1 percent slopes	F4A	30870	2587074	2q3w8	nd071	1984	1:12000
Southam silty clay loam, 0 to 1 percent slopes	G4A	3279	2581121	2q3tr	nd073	1992	1:20000
Southam silty clay loam, 0 to 1 percent slopes	I428A	1023	2641317	1nyzr	nd073	1992	1:20000
Southam silty clay loam, 0 to 1 percent slopes	F4A	417	2585332	2q3w8	nd075	1972	1:20000
Southam silty clay loam, 0 to 1 percent slopes	J230A	3306	1544916	2wbpr	nd077	2005	1:12000
Southam silty clay loam, 0 to 1 percent slopes	I428A	3008	2641147	1nyzr	nd077	2005	1:12000
Southam silty clay loam, 0 to 1 percent slopes	G4A	2942	2577428	2q3tr	nd077	2005	1:12000
Southam silty clay loam, 0 to 1 percent slopes	F4A	3733	2588003	2q3w8	nd079	1990	1:24000
Southam silty clay loam, 0 to 1 percent slopes	G4A	5323	2579562	2q3tr	nd081	1959	1:12000
Southam silty clay loam, 0 to 1 percent slopes	I428A	870	2641238	1nyzr	nd081	1959	1:12000
Southam silty clay loam, 0 to 1 percent slopes	Fw	12	341584	2wbpr	nd081	1959	1:12000
Southam silty clay loam, 0 to 1 percent slopes	C5A	24031	2566807	2q539	nd083	1990	1:20000
Southam silty clay loam, 0 to 1 percent slopes	G4A	4729	2581934	2q3tr	nd083	1990	1:20000
Southam silty clay loam, 0 to 1 percent slopes	G4A	4643	2579718	2q3tr	nd091	1991	1:20000
Southam silty clay loam, 0 to 1 percent slopes	I428A	237	2641386	1nyzr	nd091	1991	1:20000
Southam silty clay loam, 0 to 1 percent slopes	C5A	34323	2566866	2q539	nd093	1990	1:24000
Southam silty clay loam, 0 to 1 percent slopes	G4A	5891	2581328	2q3tr	nd093	1990	1:24000
Southam silty clay loam, 0 to 1 percent slopes	F4A	6720	2586196	2q3w8	nd095	1992	1:24000
Southam silty clay loam, 0 to 1 percent slopes	I428A	1216	2641623	1nyzr	nd097	1974	1:20000
Southam silty clay loam, 0 to 1 percent slopes	G4A	53	2579823	2q3tr	nd097	1974	1:20000
Southam silty clay loam, 0 to 1 percent slopes	F4A	2567	2586102	2q3w8	nd099	1967	1:20000
Southam silty clay loam, 0 to 1 percent slopes	I428A	195	2642858	1nyzr	nd099	1967	1:20000
Southam silty clay loam, 0 to 1 percent slopes	C5A	10535	2566929	2q539	nd101	1967	1:20000
Southam silty clay loam, 0 to 1 percent slopes	F4A	1816	2585115	2q3w8	nd101	1967	1:20000
Southam silty clay loam	Fw	12	352501	ctt0	nd101	1967	1:20000
Southam silty clay loam, 0 to 1 percent slopes	G4A	4	2573486	2q3tr	nd101	1967	1:20000
Southam silty clay loam, 0 to 1 percent slopes	C5A	4180	2566966	2q539	nd103	1966	1:12000
Southam silty clay loam, 0 to 1 percent slopes	G4A	1127	2579592	2q3tr	nd103	1966	1:12000
Southam silty clay loam, 0 to 1 percent slopes	C5A	6362	2567027	2q539	nd105	1993	1:24000
Southam silty clay loam, 0 to 1 percent slopes	1710	635	339024	ccs8	nd105	1993	1:24000
Southam silty clay loam, 0 to 1 percent slopes	So	8064	418806	2wbpr	sd011	1995	1:24000
Southam silty clay loam, 0 to 1 percent slopes	G004A	3218	2797634	2q3tr	sd013	1987	1:20000
Southam silty clay loam, 0 to 1 percent slopes	C005A	1267	2765578	2q539	sd013	1987	1:20000
Southam silty clay loam, 0 to 1 percent slopes	C005A	2827	2797899	2q539	sd021	1978	1:20000
Southam silty clay loam, 0 to 1 percent slopes	Ss	33515	417789	2wbpr	sd025	1992	1:20000
Southam silty clay loam, 0 to 1 percent slopes	G004A	43	2797963	2q3tr	sd025	1992	1:20000
Southam silty clay loam, 0 to 1 percent slopes	Z106A	13655	2712999	2wbpr	sd029	2006	1:12000
Southam silty clay loam, 0 to 1 percent slopes	Sw	43198	417136	2wbpr	sd037	1992	1:20000
Southam silty clay loam, 0 to 1 percent slopes	G004A	50	2798441	2q3tr	sd037	1992	1:20000
Southam silty clay loam, 0 to 1 percent slopes	So	8080	416905	2wbpr	sd039	1992	1:20000
Barnes-Buse-Southam complex, 0 to 25 percent slopes	BeE	5104	416832	2yyjj	sd039	1992	1:20000
Southam silty clay loam, 0 to 1 percent slopes	C005A	6092	2798574	2q539	sd045	1973	1:20000
Southam silty clay loam, 0 to 1 percent slopes	C005A	1375	2798644	2q539	sd049	1981	1:20000
Southam silty clay loam, 0 to 1 percent slopes	Pb	4159	418170	2wbpr	sd051	1977	1:20000
Southam silty clay loam, 0 to 1 percent slopes	So	9720	417313	2wbpr	sd057	1992	1:20000
Southam silty clay loam, 0 to 1 percent slopes	Ss	12798	417514	2wbpr	sd077	1992	1:20000
Southam silty clay loam, 0 to 1 percent slopes	C005A	16158	2798736	2q539	sd089	1980	1:20000
Southam silty clay loam, 0 to 1 percent slopes	Mr	19651	416586	2wbpr	sd091	1970	1:20000
Southam silty clay loam, 0 to 1 percent slopes	G004A	565	2799266	2q3tr	sd091	1970	1:20000
Southam silty clay loam, 0 to 1 percent slopes	C005A	483	2799464	2q539	sd107	1983	1:20000
Southam silty clay loam, 0 to 1 percent slopes	Mr	16881	417850	2wbpr	sd109	1977	1:20000
Southam silty clay loam, 0 to 1 percent slopes	I428A	6433	2800197	1nyzr	sd109	1977	1:20000
Southam silty clay loam, 0 to 1 percent slopes	G004A	965	2799536	2q3tr	sd115	1997	1:24000
Southam silty clay loam, 0 to 1 percent slopes	C005A	775	2799503	2q539	sd115	1997	1:24000
Southam silty clay loam, 0 to 1 percent slopes	So	4	356708	cz5q	sd115	1997	1:24000
Southam silty clay loam, 0 to 1 percent slopes	C005A	1216	2800107	2q539	sd129	1975	1:20000

Map of Series Extent

Approximate geographic distribution of the SOUTHAM 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).