Soil Data Explorer - STIRUM

Official Series Description

Lab Data Summary

Aggregate lab data for the STIRUM soil series. This aggregation is based on all pedons with a current taxon name of STIRUM, 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 STIRUM 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
55B	40A0113	S1956ND081011	Stirum	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.1025,-97.5319444
55B	40A0114	S1956ND081014	Stirum	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.2686111,-97.84
56	40A2828	S1967ND077001	Stirum	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.4275,-97.2136111
56	40A2829	S1967ND077002	Stirum	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.4275,-97.1408333
56	89P0585	S1989ND073043	Stirum	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.3102778,-97.3322222

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the STIRUM 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 STIRUM 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 STIRUM 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 STIRUM 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 STIRUM 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 STIRUM 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 STIRUM 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 STIRUM, 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-2012-02-07-12 | Bottineau County - May 1982

   Typical pattern of soils and underlying material in the Hecla-Ulen association (Soil Survey of Bottineau County, North Dakota; May 1982).

2. ND-2012-02-08-21 | McHenry County - October 1990

   Typical pattern of soils and parent material in the Hecla-Aylmer-Ulen association (Soil Survey of McHenry County, North Dakota; October 1990).

3. ND-2012-02-08-23 | McHenry County - October 1990

   Typical pattern of soils and parent material in the Towner-Swenoda-Hecla association (Soil Survey of McHenry County, North Dakota; October 1990).

Map Units

Map units containing STIRUM 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
Stirum-Arveson, saline fine sandy loams, 0 to 1 percent slopes	G362A	617	2573758	2q5bd	nd005		1:12000
Stirum-Arveson, saline fine sandy loams, 0 to 1 percent slopes	F362A	577	2587745	2q54b	nd005		1:12000
Stirum-Arveson, saline fine sandy loams, 0 to 1 percent slopes	F362A	3409	2586046	2q54b	nd009	1981	1:20000
Harriet, Regan, and Stirum soils, 0 to 2 percent slopes	2169	20376	341110	cfyk	nd013	1991	1:24000
Harriet-Regan-Stirum complex, 0 to 2 percent slopes, occasionally flooded	C580A	1515	2564080	2q2kr	nd013	1991	1:24000
Harriet-Regan-Stirum complex, 0 to 2 percent slopes, occasionally flooded	C580A	14035	2596821	2q2kr	nd015	1967	1:20000
Arveson-Stirum loams, moderately saline, 0 to 2 percent slopes	C531A	1368	2564129	2q39z	nd015	1967	1:20000
Arveson-Stirum loams, moderately saline, 0 to 1 percent slopes, frequently ponded	C532A	465	2564130	2q3b0	nd015	1967	1:20000
Minnewaukan-Stirum complex, 0 to 2 percent slopes	C320A	35	2595652	2q4x9	nd015	1967	1:20000
Glyndon-Stirum loams, strongly saline, 0 to 2 percent slopes	I509A	1225	2640894	1tbnz	nd017	1983	1:20000
Stirum-Arveson, saline fine sandy loams, 0 to 1 percent slopes	G362A	4082	2575323	2q5bd	nd021	1989	1:20000
Stirum-Letcher fine sandy loams, 0 to 2 percent slopes	G363A	989	2575324	2q5bf	nd021	1989	1:20000
Stirum-Fossum fine sandy loams, 0 to 1 percent slopes	G361A	75	2575322	2q50p	nd021	1989	1:20000
Harriet, Regan, and Stirum soils, 0 to 2 percent slopes	2169	8665	341310	cg50	nd023	1992	1:24000
Harriet-Regan-Stirum complex, 0 to 2 percent slopes, occasionally flooded	C580A	2646	2564253	2q2kr	nd023	1992	1:24000
Stirum-Arveson, saline fine sandy loams, 0 to 1 percent slopes	G362A	1316	2576291	2q5bd	nd027		1:12000
Harriet-Regan-Stirum complex, 0 to 2 percent slopes, occasionally flooded	C580A	27	2596834	2q2kr	nd029	1979	1:20000
Stirum-Arveson, saline fine sandy loams, 0 to 1 percent slopes	G362A	2825	2576624	2q5bd	nd039	1991	1:24000
Minnewaukan-Stirum complex, 0 to 2 percent slopes	C320A	12767	2564413	2q4x9	nd043	1985	1:20000
Harriet-Regan-Stirum complex, 0 to 2 percent slopes, occasionally flooded	C580A	98	2596653	2q2kr	nd043	1985	1:20000
Harriet-Regan-Stirum complex, 0 to 2 percent slopes, occasionally flooded	C580A	5721	2596698	2q2kr	nd047	1992	1:20000
Minnewaukan-Stirum complex, 0 to 2 percent slopes	C320A	13	2596707	2q4x9	nd047	1992	1:20000
Stirum-Arveson, saline fine sandy loams, 0 to 1 percent slopes	F362A	17572	2585763	2q54b	nd049	1987	1:20000
Stirum-Arveson, saline fine sandy loams, 0 to 1 percent slopes	G362A	11021	2571362	2q5bd	nd049	1987	1:20000
Harriet-Regan-Stirum complex, 0 to 2 percent slopes, occasionally flooded	C580A	1809	2596764	2q2kr	nd051	1992	1:24000
Harriet-Regan-Stirum complex, 0 to 2 percent slopes, occasionally flooded	C580A	9238	2596868	2q2kr	nd055	1974	1:20000
Stirum-Arveson, saline fine sandy loams, 0 to 1 percent slopes	G362A	25	2577182	2q5bd	nd055	1974	1:20000
Harriet-Regan-Stirum complex, 0 to 2 percent slopes, occasionally flooded	C580A	220	2567087	2q2kr	nd061	1988	1:24000
Stirum-Arveson, saline fine sandy loams, 0 to 1 percent slopes	F362A	25915	2587278	2q54b	nd069	1975	1:20000
Stirum-Arveson, saline fine sandy loams, 0 to 1 percent slopes	G362A	6070	2582303	2q5bd	nd069	1975	1:20000
Stirum-Lemert sandy loams, 0 to 2 percent slopes	I545A	2331	2641353	1vh7p	nd073	1992	1:20000
Stirum-Arveson, saline loams, 0 to 1 percent slopes	I313A	184	2641283	1nywf	nd073	1992	1:20000
Stirum-Arveson, saline loams, stratified substratum, 0 to 1 percent slopes	I212A	2366	2641029	1nys7	nd077	2005	1:12000
Stirum-Arveson, saline loams, 0 to 1 percent slopes	I313A	1333	2640992	1nywf	nd077	2005	1:12000
Stirum-Arveson, saline fine sandy loams, 0 to 1 percent slopes	F362A	9997	2588188	2q54b	nd079	1990	1:24000
Stirum-Arveson, saline fine sandy loams, 0 to 1 percent slopes	G362A	3910	2579502	2q5bd	nd081	1959	1:12000
Stirum-Fossum fine sandy loams, 0 to 1 percent slopes	G361A	2380	2579475	2q50p	nd081	1959	1:12000
Stirum-Arveson, saline loams, 0 to 1 percent slopes	I313A	1066	2641211	1nywf	nd081	1959	1:12000
Stirum-Arveson, saline fine sandy loams, 0 to 1 percent slopes	G362A	15	2581985	2q5bd	nd083	1990	1:20000
Harriet-Regan-Stirum complex, 0 to 2 percent slopes, occasionally flooded	C580A	8	2596871	2q2kr	nd083	1990	1:20000
Arveson-Stirum loams, moderately saline, 0 to 1 percent slopes, frequently ponded	C532A	171	2661631	2q3b0	nd093	1990	1:24000
Harriet-Regan-Stirum complex, 0 to 2 percent slopes, occasionally flooded	C580A	1410	2596880	2q2kr	nd101	1967	1:20000
Stirum-Arveson, saline fine sandy loams, 0 to 1 percent slopes	F362A	23	2585271	2q54b	nd101	1967	1:20000
Harriet-Regan-Stirum complex, 0 to 2 percent slopes, occasionally flooded	C580A	1220	2596881	2q2kr	nd103	1966	1:12000
Harriet and Stirum soils, 0 to 2 percent slopes	2270	12011	339048	cct1	nd105	1993	1:24000
Harriet-Regan-Stirum complex, 0 to 2 percent slopes, occasionally flooded	C580A	2289	2596782	2q2kr	nd105	1993	1:24000
Ulen-Stirum fine sandy loams, 0 to 2 percent slopes	G348A	3892	2797756	2sd2n	sd013	1987	1:20000
Wyndmere, sandy substratum-Stirum fine sandy loams, 0 to 2 percent slopes	G344A	2474	2797755	2sd2m	sd013	1987	1:20000
Stirum-Stirum, thin surface complex, 0 to 2 percent slopes	G364A	1834	2797759	2sd2r	sd013	1987	1:20000
Stirum-Fossum fine sandy loams, 0 to 1 percent slopes	G361A	499	2797669	2q50p	sd013	1987	1:20000
Stirum-Ulen fine sandy loams, 0 to 2 percent slopes	G349A	98	2797757	2sd2p	sd013	1987	1:20000
Stirum loam, loamy substratum, 0 to 1 percent slopes	C537A	12	2765611	2srtv	sd013	1987	1:20000
Stirum loam, loamy substratum, 0 to 1 percent slopes	C537A	552	2798781	2srtv	sd089	1980	1:20000
Ulen-Stirum fine sandy loams, 0 to 2 percent slopes	G348A	4219	2799335	2sd2n	sd091	1970	1:20000
Stirum-Ulen fine sandy loams, 0 to 2 percent slopes	G349A	1917	2799336	2sd2p	sd091	1970	1:20000
Stirum-Fossum fine sandy loams, 0 to 1 percent slopes	G361A	21	2799288	2q50p	sd091	1970	1:20000

Map of Series Extent

Approximate geographic distribution of the STIRUM 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).