Soil Data Explorer - LAWTHER

Official Series Description

Lab Data Summary

Aggregate lab data for the LAWTHER soil series. This aggregation is based on all pedons with a current taxon name of LAWTHER, 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 LAWTHER 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
54	72ND087002	72ND087002	Lawther	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.3822222,-103.2586111
54	78P0151	77ND001006	Lawther	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.1416664,-102.8855591
54	80P0301	77ND001006A	Lawther	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.1416664,-102.8855591
54	84ND041192	84ND041192	LAWTHER	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.3613889,-102.8458333
54	91P0209	90ND105266	Lawther	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	48.1732940673828,-103.106704711914
54	91P0210	90ND105267	Lawther	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	48.047176361084,-103.859786987305
54	92P0153	91ND089018A	Lawther	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.9821853637695,-102.303886413574
58A	40A3539	S1956MT103006	Lawther	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.0396576,-107.2162628

Water Balance

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

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

Soil series sharing subgroup-level classification with LAWTHER, 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-2010-09-27-12 | Williams County - 2002

   Typical pattern of soils and underlying material in the Lawther-Shambo-Savage association (Soil Survey of Williams County, North Dakota; 2002).

2. ND-2012-02-08-10 | Hettinger County - May 1990

   Typical pattern of soils and underlying material in the Moreau-Lawther-Amor association (Soil Survey of Hettinger County, North Dakota; May 1990).

Map Units

Map units containing LAWTHER 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
Lawther silty clay, 2 to 4 percent slopes	146	7936	342375	ch8c	mt027	1979	1:24000
Eltsac-Lawther clays, 2 to 8 percent slopes	79	7871	342582	chh1	mt027	1979	1:24000
Lawther silty clay, 0 to 2 percent slopes	145	7507	342374	ch8b	mt027	1979	1:24000
Lawther clay, 0 to 4 percent slopes	54B	3487	344225	ck61	mt051	1992	1:24000
Lawther clay, 4 to 8 percent slopes	54C	834	344226	ck62	mt051	1992	1:24000
Gerber-Lawther silty clays, 4 to 8 percent slopes	88	10879	341976	cgvh	mt613	1975	1:24000
Lawther silty clay, 0 to 4 percent slopes	122	10853	341782	cgn7	mt613	1975	1:24000
Lawther clay	123	2497	341783	cgn8	mt613	1975	1:24000
Lawther-Gerber complex, 8 to 15 percent slopes	124	2373	341784	cgn9	mt613	1975	1:24000
Gerber-Lawther silty clays, 0 to 4 percent slopes	87	2198	341975	cgvg	mt613	1975	1:24000
Lawther silty clay, 0 to 2 percent slopes	E0821A	3725	2525726	1vzs6	nd001	1983	1:20000
Lawther-Daglum complex, 0 to 2 percent slopes	E0634A	2481	2563574	1vzrq	nd011	1969	1:20000
Lawther silty clay, 0 to 2 percent slopes	E0821A	814	2563573	1vzs6	nd011	1969	1:20000
Lawther silty clay, 0 to 2 percent slopes	La	7	992851	12b4g	nd011	1969	1:20000
Lawther silty clay, 0 to 2 percent slopes	E0821A	5443	2707185	1vzs6	nd025	1981	1:20000
Lawther silty clay, 2 to 6 percent slopes	E0821B	962	2707186	1vzs7	nd025	1981	1:20000
Lawther-Daglum complex, 2 to 6 percent slopes	E0634B	46	1713159	1vzrr	nd025	1981	1:20000
Lawther-Daglum complex, 0 to 2 percent slopes	E0634A	11	1713158	1vzrq	nd025	1981	1:20000
Lawther silty clay, 0 to 2 percent slopes	E0821A	1351	2707277	1vzs6	nd033	1985	1:24000
Lawther silty clay, 2 to 6 percent slopes	E0821B	1130	2707278	1vzs7	nd033	1985	1:24000
Lawther silty clay, 0 to 2 percent slopes	E0821A	2257	2525860	1vzs6	nd037	1985	1:20000
Lawther silty clay, 0 to 2 percent slopes	E0821A	9836	1718583	1vzs6	nd041	1986	1:20000
Lawther-Daglum complex, 0 to 2 percent slopes	E0634A	41	1718578	1vzrq	nd041	1986	1:20000
Lawther silty clay, 2 to 6 percent slopes	E0821B	15	1718584	1vzs7	nd041	1986	1:20000
Lawther silty clay, 0 to 2 percent slopes	E0821A	10568	2715040	1vzs6	nd053	2003	1:24000
Lawther silty clay, 0 to 2 percent slopes	E0821A	1994	2699277	1vzs6	nd057	1976	1:20000
Lawther silty clay, 0 to 2 percent slopes	E0821A	807	2699177	1vzs6	nd059	1998	1:20000
Lawther silty clay, 2 to 6 percent slopes	E0821B	15	1718338	1vzs7	nd059	1998	1:20000
Lawther silty clay, 2 to 6 percent slopes	E0821B	632	2525913	1vzs7	nd065	1971	1:20000
Lawther silty clay, 0 to 2 percent slopes	E0821A	367	2525912	1vzs6	nd065	1971	1:20000
Lawther silty clay, 0 to 2 percent slopes	E0821A	4	2759698	1vzs6	nd085	1992	1:24000
Lawther silty clay, 0 to 2 percent slopes	E0821A	3365	2707384	1vzs6	nd087	1974	1:20000
Lawther-Daglum complex, 0 to 2 percent slopes	E0634A	2058	2707372	1vzrq	nd087	1974	1:20000
Lawther clay, sandy substratum, 0 to 2 percent slopes	E0820A	971	2707381	2q391	nd087	1974	1:20000
Lawther silty clay, 2 to 6 percent slopes	E0821B	613	2707385	1vzs7	nd087	1974	1:20000
Lawther clay, sandy substratum, 2 to 6 percent slopes	E0820B	339	2707382	2qz8z	nd087	1974	1:20000
Lawther clay, sandy substratum, 6 to 9 percent slopes	E0820C	151	2707383	2q392	nd087	1974	1:20000
Lawther-Daglum complex, 2 to 6 percent slopes	E0634B	4465	1713466	1vzrr	nd089	1965	1:20000
Lawther-Daglum complex, 0 to 2 percent slopes	E0634A	3275	1713465	1vzrq	nd089	1965	1:20000
Lawther silty clay, 0 to 2 percent slopes	E0821A	3111	1713480	1vzs6	nd089	1965	1:20000
Lawther silty clay, 2 to 6 percent slopes	E0821B	2889	1713481	1vzs7	nd089	1965	1:20000
Lawther silty clay, 0 to 2 percent slopes	E0821A	3309	2662558	1vzs6	nd105	1993	1:24000
Lawther silty clay, 0 to 2 percent slopes	2349	623	339060	cctf	nd105	1993	1:24000
Lawther silty clay, 0 to 2 percent slopes	C476A	471	2567034	2q6lb	nd105	1993	1:24000
Lawther silty clay, 3 to 6 percent slopes	LaB	5962	354633	2yntn	sd105	1977	1:24000
Lawther silty clay, 0 to 3 percent slopes	LaA	2470	354632	2yntm	sd105	1977	1:24000
Lawther silty clay, 6 to 9 percent slopes	LaC	691	354634	2yntp	sd105	1977	1:24000
Lawther silty clay, 3 to 6 percent slopes	LaB	32550	355448	2yntn	sd601	1983	1:24000

Map of Series Extent

Approximate geographic distribution of the LAWTHER 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).