Soil Data Explorer - LARSON

Official Series Description

Lab Data Summary

Aggregate lab data for the LARSON soil series. This aggregation is based on all pedons with a current taxon name of LARSON, 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 LARSON 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
55A	40A0025	S1949ND075001	Larson	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	48.6080556,-101.8416667

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the LARSON 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 LARSON series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot (updated 2024-10-24), parsed OSD records (updated 2024-10-23) and snapshot of SC database (updated 2024-10-23).

Select annual climate data summaries for the LARSON 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 2024-10-23).

Geomorphic description summaries for the LARSON 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 2024-10-23).

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

Competing Series

Soil series competing with LARSON share the same family level classification in Soil Taxonomy. Source: parsed OSD records (updated 2024-10-23) and snapshot of the SC database (updated 2024-10-23).

Select annual climate data summaries for the LARSON 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 2024-10-23).

There are insufficient data to create the annual climate figure.

Geomorphic description summaries for the LARSON 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 2024-10-23).

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 LARSON, 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 2024-10-23).

Block Diagrams

Click a link below to display the diagram. Note that these diagrams may be from multiple survey areas.

1. ND-2012-02-07-39 | Foster County - July 1995

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

2. 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).

3. ND-2012-02-08-51 | Sheridan County - November 1994

   Typical pattern of soils and parent material in the Cathay-Emrick-Larson association (Soil Survey of Sheridan County, North Dakota; November 1994).

4. ND-2012-02-08-65 | Wells County - June 1970

   Parent material and position of soils in association 7 (Soil Survey of Wells County, North Dakota; June 1970).

5. ND-2012-02-08-67 | Wells County - June 1970

   Parent material and position of soils in association 10 (Soil Survey of Wells County, North Dakota; June 1970

Map Units

Map units containing LARSON 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
Larson-Cathay loams, 0 to 3 percent slopes	F225A	2241	2587773	2q3xm	nd005		1:12000
Uranda-Larson loams, 0 to 3 percent slopes	F226A	2193	2587659	2q3xn	nd005		1:12000
Larson-Uranda loams, 0 to 3 percent slopes	F222A	755	2587614	2q3xg	nd005		1:12000
Larson-Uranda loams, 3 to 6 percent slopes	F222B	689	2587729	2q3xh	nd005		1:12000
Larson-Cathay loams, 0 to 3 percent slopes	G225A	471	2573792	2q4hh	nd005		1:12000
Uranda-Larson loams, 0 to 3 percent slopes	G226A	381	2573700	2q4hj	nd005		1:12000
Larson-Uranda loams, 0 to 3 percent slopes	G222A	168	2573810	2q4hp	nd005		1:12000
Cathay-Larson loams, 0 to 3 percent slopes	G224A	153	2573721	2q4hq	nd005		1:12000
Larson-Uranda-Esmond loams, 6 to 15 percent slopes	F223D	149	2587742	2q3xj	nd005		1:12000
Cathay-Larson loams, 0 to 3 percent slopes	G224A	3404	2575426	2q4hq	nd027		1:12000
Uranda-Larson loams, 0 to 3 percent slopes	G226A	1695	2576235	2q4hj	nd027		1:12000
Larson-Cathay loams, 0 to 3 percent slopes	G225A	488	2576234	2q4hh	nd027		1:12000
Larson, very stony-Lowe loams, 0 to 2 percent slopes, occasionally flooded	G618A	376	2576342	2q5sk	nd027		1:12000
Larson-Cathay loams, 0 to 3 percent slopes	G225A	9262	2576405	2q4hh	nd031	1990	1:20000
Uranda-Larson loams, 0 to 3 percent slopes	G226A	3131	2576406	2q4hj	nd031	1990	1:20000
Larson-Uranda loams, 0 to 3 percent slopes	G222A	127	2576399	2q4hp	nd031	1990	1:20000
Cathay-Larson loams, 0 to 3 percent slopes	G224A	101	2576400	2q4hq	nd031	1990	1:20000
Larson-Cathay loams, 0 to 3 percent slopes	G225A	1891	2576593	2q4hh	nd039	1991	1:24000
Uranda-Larson loams, 0 to 3 percent slopes	G226A	1333	2576594	2q4hj	nd039	1991	1:24000
Emrick-Larson loams, 0 to 3 percent slopes	G218A	6	2576688	2q61n	nd039	1991	1:24000
Emrick-Larson loams, low precipitation, 0 to 3 percent slopes	C598A	32	2596676	2q6m2	nd043	1985	1:20000
Cathay-Larson loams, 0 to 3 percent slopes, bouldery	G616A	280	2577117	2q5sj	nd045	1966	1:20000
Swenoda-Larson fine sandy loams, 0 to 3 percent slopes	G751A	8750	2571416	2q60h	nd049	1987	1:20000
Swenoda-Larson fine sandy loams, 3 to 6 percent slopes	G751B	7304	2571417	2q60j	nd049	1987	1:20000
Swenoda-Larson fine sandy loams, 0 to 3 percent slopes	F751A	137	2585690	2q5md	nd049	1987	1:20000
Swenoda-Larson fine sandy loams, 3 to 6 percent slopes	F751B	93	2585658	2q5mg	nd049	1987	1:20000
Uranda-Larson loams, 0 to 3 percent slopes	F226A	19	2587219	2q3xn	nd069	1975	1:20000
Larson-Uranda loams, 3 to 6 percent slopes	F222B	12	2587266	2q3xh	nd069	1975	1:20000
Uranda-Larson loams, 0 to 3 percent slopes	G226A	6	2582276	2q4hj	nd069	1975	1:20000
Larson-Uranda loams, 0 to 3 percent slopes	F222A	4	2587185	2q3xg	nd069	1975	1:20000
Cathay-Larson loams, 0 to 3 percent slopes, bouldery	G616A	1386	2581203	2q5sj	nd073	1992	1:20000
Cathay-Larson loams, 3 to 6 percent slopes	F224B	1338	2588149	2q3xl	nd079	1990	1:24000
Cathay-Larson loams, 0 to 3 percent slopes	F224A	1282	2588001	2q3xk	nd079	1990	1:24000
Uranda-Larson loams, 0 to 3 percent slopes	F226A	261	2588076	2q3xn	nd079	1990	1:24000
Larson-Cathay loams, 0 to 3 percent slopes	F225A	186	2588226	2q3xm	nd079	1990	1:24000
Uranda-Larson loams, 0 to 3 percent slopes	G226A	2451	2581960	2q4hj	nd083	1990	1:20000
Larson-Cathay loams, 0 to 3 percent slopes	G225A	2091	2581959	2q4hh	nd083	1990	1:20000
Cathay-Larson loams, 0 to 3 percent slopes	G224A	971	2581952	2q4hq	nd083	1990	1:20000
Swenoda-Larson fine sandy loams, 0 to 3 percent slopes	G751A	190	2582020	2q60h	nd083	1990	1:20000
Swenoda-Larson fine sandy loams, 3 to 6 percent slopes	G751B	62	2582021	2q60j	nd083	1990	1:20000
Emrick-Larson loams, 0 to 3 percent slopes	G218A	53	2582025	2q61n	nd083	1990	1:20000
Larson-Uranda loams, 0 to 3 percent slopes	G222A	33	2579736	2q4hp	nd091	1991	1:20000
Swenoda-Larson fine sandy loams, 0 to 3 percent slopes	G751A	1246	2581422	2q60h	nd093	1990	1:24000
Swenoda-Larson fine sandy loams, 3 to 6 percent slopes	G751B	1087	2581423	2q60j	nd093	1990	1:24000
Larson-Cathay loams, 0 to 3 percent slopes	G225A	44	2581349	2q4hh	nd093	1990	1:24000
Uranda-Larson loams, 0 to 3 percent slopes	G226A	11	2581350	2q4hj	nd093	1990	1:24000
Emrick-Larson loams, 0 to 3 percent slopes	G218A	47717	2579701	2q61n	nd103	1966	1:12000
Uranda-Larson loams, 0 to 3 percent slopes	G226A	18346	2579623	2q4hj	nd103	1966	1:12000
Larson-Uranda loams, 0 to 3 percent slopes	G222A	13733	2579616	2q4hp	nd103	1966	1:12000
Emrick-Larson loams, low precipitation, 0 to 3 percent slopes	C598A	2960	2566972	2q6m2	nd103	1966	1:12000
Heimdal-Larson loams, 3 to 6 percent slopes	G219B	1183	2579614	2px09	nd103	1966	1:12000
Cathay-Larson loams, 0 to 3 percent slopes	G224A	1137	2579617	2q4hq	nd103	1966	1:12000
Heimdal-Larson loams, low precipitation, 3 to 6 percent slopes	C541B	905	2566984	2q6m8	nd103	1966	1:12000
Larson-Heimdal loams, 3 to 6 percent slopes	G214B	335	2579612	2px07	nd103	1966	1:12000
Larson, very stony-Lowe loams, 0 to 2 percent slopes, occasionally flooded	G618A	115	2579683	2q5sk	nd103	1966	1:12000

Map of Series Extent

Approximate geographic distribution of the LARSON 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 2024-10-30).