Soil Data Explorer - DEGRAND

Official Series Description

Lab Data Summary

Aggregate lab data for the DEGRAND soil series. This aggregation is based on all pedons with a current taxon name of DEGRAND, 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 DEGRAND were used in the calculation. Source: KSSL snapshot (updated 2020-03-13). Methods used to assemble the KSSL snapshot used by SoilWeb / SDE

There are insufficient data to create the lab data summary figure.

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the DEGRAND 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 DEGRAND series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot (updated 2024-02-21), parsed OSD records (updated 2023-10-02) and snapshot of SC database (updated 2023-10-02).

Select annual climate data summaries for the DEGRAND 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 DEGRAND 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 DEGRAND share the same family level classification in Soil Taxonomy. Source: parsed OSD records (updated 2023-10-02) and snapshot of the SC database (updated 2023-10-02).

Select annual climate data summaries for the DEGRAND 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 DEGRAND 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 flats position figure.

Soil series sharing subgroup-level classification with DEGRAND, 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

No block diagrams are available.

Map Units

Map units containing DEGRAND 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
Degrand loam, 0 to 4 percent slopes	37B	9363	343412	cjbt	mt017	1995	1:24000
Kremlin-Tinsley-Degrand complex, 4 to 15 percent slopes	121D	1488	343305	cj7c	mt017	1995	1:24000
Degrand loam, 0 to 4 percent slopes	16B	2645	343858	cjt6	mt041	1994	1:24000
Degrand fine sandy loam, 0 to 4 percent slopes	16B	426	344140	ck39	mt051	1992	1:24000
Degrand loam, 0 to 4 percent slopes	42	27712	344909	ckx3	mt079	1986	1:24000
Degrand fine sandy loam, 0 to 4 percent slopes	41	9676	344905	ckwz	mt079	1986	1:24000
Kremlin-Tinsley-Degrand complex, 4 to 15 percent slopes	79	622	345015	cl0j	mt079	1986	1:24000
Chinook-Degrand fine sandy loams, 2 to 8 percent slopes	152	310	2451192	2n8nq	mt079	1986	1:24000
Chinook-Tinsley-Degrand complex, 4 to 25 percent slopes	153	168	2451197	2n8nw	mt079	1986	1:24000
Degrand loam, 0 to 4 percent slopes	16B	4209	345078	cl2k	mt101	1992	1:24000
Degrand sandy loam, 0 to 4 percent slopes	162B	758	345077	cl2j	mt101	1992	1:24000
Degrand loam, 0 to 4 percent slopes	16B	1857	346608	cmnx	mt615	1992	1:24000
Evanston-Degrand loams, 0 to 4 percent slopes	377B	1537	346734	cmsz	mt615	1992	1:24000
Degrand loam, 0 to 4 percent slopes	11B	3982	347580	cnp8	mt641	1994	1:24000
Degrand sandy loam, 0 to 4 percent slopes	71	857	348105	cp76	mt649	1985	1:24000

Map of Series Extent

Approximate geographic distribution of the DEGRAND 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).