Soil Data Explorer - LUDDEN

Official Series Description

Lab Data Summary

Aggregate lab data for the LUDDEN soil series. This aggregation is based on all pedons with a current taxon name of LUDDEN, 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 LUDDEN 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
55A	84ND049023	S1984ND049023	Ludden	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	48.5452778,-100.4941667
55B	83P0011	81SD013062	Ludden	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	45.4527779,-98.2638855
55B	83P0012	81SD013063	Ludden	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	45.4366684,-98.246109
55B	83P0013	81SD013064	Ludden	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	45.4550018,-98.2463913

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the LUDDEN 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 LUDDEN 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 LUDDEN 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 LUDDEN 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 LUDDEN 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 LUDDEN 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 LUDDEN 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 LUDDEN, 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. SD-2010-11-01-13 | Spink County - 2009

   Pattern of soils and underlying materials in the Great Bend-Beotia, Harmony-Aberdeen-Nahon, and Ludden-Lamoure associations (Soil Survey of Spink County, South Dakota; 2009).

2. SD-2012-03-14-08 | Brown County - April 1993

   Typical pattern of soils and parent material in the Great Bend-Beotia, Harmony-Aberdeen-Nahon, and Ludden-Lamoure associations (Soil Survey of Brown County, SD; 1993).

Map Units

Map units containing LUDDEN 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
Wahpeton-Ludden silty clays, 0 to 6 percent slopes, flooded	I135B	2581	2798880	21wsz	mn069	2007	1:12000
Sinai-Ludden, flooded, clays, very-fine family, 0 to 6 percent slopes	I137B	2455	2798882	21x2v	mn069	2007	1:12000
Wahpeton-Ludden silty clays, 0 to 6 percent slopes, flooded	I135B	8	2799001	21wsz	mn089	1994	1:20000
Ludden silty clay loam, 0 to 1 percent slopes, frequently flooded	I782A	3144	2799971	2ql27	mn155	1986	1:20000
Ludden silty clay loam	1950	6	357351	czvg	mn155	1986	1:20000
Ludden silty clay, 0 to 1 percent slopes, frequently flooded	G55A	29	2573585	2q3vc	nd003	1988	1:20000
Ryan-Ludden, saline silty clays, 0 to 1 percent slopes, frequently flooded	G551A	2518	2573800	2q5pk	nd005		1:12000
Ryan-Ludden, saline silty clays, 0 to 1 percent slopes, frequently flooded	F551A	569	2587754	2q56p	nd005		1:12000
Ludden silty clay, wet, 0 to 1 percent slopes, frequently flooded	F527A	8462	2586067	2q56l	nd009	1981	1:20000
Ludden silty clay, 0 to 1 percent slopes, frequently flooded	G55A	2877	2575272	2q3vc	nd021	1989	1:20000
Ryan-Ludden, saline silty clays, 0 to 1 percent slopes, frequently flooded	G551A	2836	2575356	2q5pk	nd021	1989	1:20000
Ryan-Ludden, saline silty clays, 0 to 1 percent slopes, frequently flooded	G551A	1523	2576326	2q5pk	nd027		1:12000
Ludden silty clay, 0 to 1 percent slopes, frequently flooded	G55A	567	2575415	2q3vc	nd027		1:12000
Ludden silty clay, 0 to 1 percent slopes, frequently flooded	G55A	617	2576574	2q3vc	nd039	1991	1:24000
Ryan-Ludden, saline silty clays, 0 to 1 percent slopes, frequently flooded	G551A	388	2576640	2q5pk	nd039	1991	1:24000
Ryan-Ludden, saline silty clays, 0 to 1 percent slopes, frequently flooded	G551A	1882	2577102	2q5pk	nd045	1966	1:20000
Ludden silty clay, 0 to 1 percent slopes, frequently flooded	G55A	686	2577035	2q3vc	nd045	1966	1:20000
Ludden silty clay, 0 to 1 percent slopes, frequently flooded	F55A	17489	2585734	2q4g1	nd049	1987	1:20000
Ludden silty clay, wet, 0 to 1 percent slopes, frequently flooded	F527A	13267	2585790	2q56l	nd049	1987	1:20000
Ludden-Fluvaquents, channeled complex, 0 to 2 percent slopes, frequently flooded	F531A	5942	2585601	2q56m	nd049	1987	1:20000
Ryan-Ludden, saline silty clays, 0 to 1 percent slopes, frequently flooded	F551A	1630	2585772	2q56p	nd049	1987	1:20000
Ludden silty clay, 0 to 1 percent slopes, frequently flooded	G55A	88	2571336	2q3vc	nd049	1987	1:20000
Ludden silty clay, 0 to 1 percent slopes, frequently flooded	G55A	441	2577260	2q3vc	nd063		1:12000
Ryan-Ludden, saline silty clays, 0 to 1 percent slopes, frequently flooded	G551A	271	2577346	2q5pk	nd063		1:12000
Ludden silty clay, wet, 0 to 1 percent slopes, frequently flooded	F527A	1452	2585467	2q56l	nd075	1972	1:20000
Ludden silty clay, 0 to 1 percent slopes, frequently flooded	F55A	983	2585431	2q4g1	nd075	1972	1:20000
Ludden silty clay, 0 to 1 percent slopes, occasionally flooded	I177A	800	2642475	2qkvd	nd097	1974	1:20000
Ryan-Ludden, strongly saline silty clays, 0 to 1 percent slopes, frequently flooded	I380A	1595	2642901	2ptx1	nd099	1967	1:20000
Ludden silty clay, 0 to 1 percent slopes, occasionally flooded	I177A	1199	2642884	2qkvd	nd099	1967	1:20000
Ludden silty clay, wet, 0 to 1 percent slopes, frequently flooded	F527A	2695	2585290	2q56l	nd101	1967	1:20000
Ludden silty clay, 0 to 1 percent slopes, frequently flooded	F55A	2102	2585242	2q4g1	nd101	1967	1:20000
Ludden-Fluvaquents, channeled complex, 0 to 2 percent slopes, frequently flooded	F531A	226	2585128	2q56m	nd101	1967	1:20000
Ludden silty clay loam, 0 to 1 percent slopes, occasionally flooded	C59A	217	2566942	2q77b	nd101	1967	1:20000
Ryan-Ludden, saline silty clays, 0 to 1 percent slopes, frequently flooded	G551A	133	2579672	2q5pk	nd103	1966	1:12000
Lowe, occasionally flooded-Ludden, frequently flooded, complex, 0 to 1 percent slopes	Z155A	5989	2765282	2rkyk	sd011	1995	1:24000
Ludden, moderately saline-Ludden silty clays, 0 to 1 percent slopes, frequently flooded	Z256A	2789	2765287	2rkyr	sd011	1995	1:24000
Ludden silty clay, 0 to 1 percent slopes, frequently flooded	Z156A	2071	2765283	2rkyl	sd011	1995	1:24000
Lowe-Ludden complex, 0 to 1 percent slopes	Lr	91	418777	g1ry	sd011	1995	1:24000
Ludden, saline-Ludden silty clays, 0 to 1 percent slopes	Lu	71	418779	g1s0	sd011	1995	1:24000
Ludden-Ludden, saline silty clays, 0 to 1 percent slopes, frequently flooded	G541A	11143	2797788	2sd42	sd013	1987	1:20000
Ludden silty clay, ponded, 0 to 1 percent slopes, frequently flooded-Water complex	G991A	10899	2797842	2sd75	sd013	1987	1:20000
Ludden silty clay, 0 to 1 percent slopes, frequently flooded	G055A	7611	2797642	2q3vc	sd013	1987	1:20000
Ryan-Ludden, saline silty clays, 0 to 1 percent slopes, frequently flooded	G551A	7205	2797689	2q5pk	sd013	1987	1:20000
Ludden silty clay, ponded, 0 to 1 percent slopes, frequently flooded	G529A	3357	2797852	2sl42	sd013	1987	1:20000
Ludden silty clay, saline, 0 to 1 percent slopes, occasionally flooded	G542A	2378	2797789	2sd43	sd013	1987	1:20000
Ludden silty clay loam, strongly saline, 0 to 1 percent slopes, occasionally flooded	C058A	647	2765616	2t7tk	sd013	1987	1:20000
Ludden silty clay loam, strongly saline, 0 to 1 percent slopes, occasionally flooded	C058A	1149	2797953	2t7tk	sd021	1978	1:20000
Ludden silty clay, saline	Lw	6	417755	g0pz	sd025	1992	1:20000
Ludden silty clay, ponded, 0 to 1 percent slopes, frequently flooded	G529A	574	2798547	2sl42	sd037	1992	1:20000
Ludden silty clay, 0 to 1 percent slopes, frequently flooded	G055A	552	2798444	2q3vc	sd037	1992	1:20000
Ryan-Ludden, saline silty clays, 0 to 1 percent slopes, frequently flooded	G551A	342	2798463	2q5pk	sd037	1992	1:20000
Ludden-Ludden, saline silty clays, 0 to 1 percent slopes, frequently flooded	G541A	209	2798506	2sd42	sd037	1992	1:20000
Ludden silty clay, saline, 0 to 1 percent slopes, occasionally flooded	G542A	154	2798507	2sd43	sd037	1992	1:20000
Ludden silty clay	Lu	63	417099	g00t	sd037	1992	1:20000
Ludden silty clay loam, strongly saline, 0 to 1 percent slopes, occasionally flooded	C058A	5	2798683	2t7tk	sd049	1981	1:20000
Ludden silty clay	Lc	1925	418165	g146	sd051	1977	1:20000
Ludden silty clay, 0 to 1 percent slopes, frequently flooded	G055A	2548	2799274	2q3vc	sd091	1970	1:20000
Ludden silty clay	Lu	1791	416584	fzh6	sd091	1970	1:20000
Ludden silty clay, ponded, 0 to 1 percent slopes, frequently flooded	G529A	552	2799404	2sl42	sd091	1970	1:20000
Ludden silty clay, saline, 0 to 1 percent slopes, occasionally flooded	G542A	337	2799352	2sd43	sd091	1970	1:20000
Ludden-Ludden, saline silty clays, 0 to 1 percent slopes, frequently flooded	G541A	55	2799351	2sd42	sd091	1970	1:20000
Ryan-Ludden, saline silty clays, 0 to 1 percent slopes, frequently flooded	G551A	31	2799309	2q5pk	sd091	1970	1:20000
Ludden clay	Lu	2986	417847	g0sy	sd109	1977	1:20000
Ludden silty clay, 0 to 1 percent slopes, frequently flooded	G055A	3546	2799539	2q3vc	sd115	1997	1:24000
Ludden-Ludden, saline silty clays, 0 to 1 percent slopes, frequently flooded	G541A	2363	2799609	2sd42	sd115	1997	1:24000
Ryan-Ludden, saline silty clays, 0 to 1 percent slopes, frequently flooded	G551A	1973	2799554	2q5pk	sd115	1997	1:24000
Ludden silty clay, saline, 0 to 1 percent slopes, occasionally flooded	G542A	869	2799610	2sd43	sd115	1997	1:24000
Ludden silty clay, ponded, 0 to 1 percent slopes, frequently flooded	G529A	849	2800068	2sl42	sd115	1997	1:24000
Ludden silty clay loam, strongly saline, 0 to 1 percent slopes, occasionally flooded	C058A	426	2799526	2t7tk	sd115	1997	1:24000
Ludden silty clay, wet, 0 to 1 percent slopes	Lw	13	356683	cz4x	sd115	1997	1:24000
Ludden silty clay loam, strongly saline, 0 to 1 percent slopes, occasionally flooded	C058A	1127	2800155	2t7tk	sd129	1975	1:20000

Map of Series Extent

Approximate geographic distribution of the LUDDEN 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).