Soil Data Explorer - DAST

Official Series Description

Lab Data Summary

Aggregate lab data for the DAST soil series. This aggregation is based on all pedons with a current taxon name of DAST, 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 DAST 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
43B	04N0989	S2004MT059015	Dast	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.6488876,-111.2477798

Water Balance

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

Competing Series

Soil series competing with DAST 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 DAST 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 DAST 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 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 DAST, 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 DAST 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
Dast-Ridge-Rock outcrop complex, 35 to 60 percent slopes	125F	10251	342860	chs0	mt011	1992	1:24000
Dast-Cabba-Mowbray complex, 15 to 35 percent slopes	325E	10105	343084	cj07	mt011	1992	1:24000
Dast-Vebar complex, 15 to 35 percent slopes	225E	9586	343031	chyj	mt011	1992	1:24000
Belltower-Dast-Reeder complex, 15 to 35 percent slopes	144E	8903	342894	cht3	mt011	1992	1:24000
Dast-Vebar complex, 35 to 60 percent slopes	225F	7821	343032	chyk	mt011	1992	1:24000
Belltower-Dast complex, 35 to 60 percent slopes	144F	5662	342895	cht4	mt011	1992	1:24000
Cabba-Dast complex, 8 to 15 percent slopes	312D	1477	343082	cj05	mt011	1992	1:24000
Reeder-Dast complex, 4 to 15 percent slopes	242D	931	343040	chyt	mt011	1992	1:24000
Shambo-Lisk-Dast complex, 8 to 25 percent slopes	802E	12425	343692	cjmv	mt017	1995	1:24000
Lisk-Cohagen-Dast fine sandy loams, 8 to 25 percent slopes	971E	3967	343822	cjs1	mt017	1995	1:24000
Dast-Blanchard complex, 2 to 8 percent slopes	251C	99	1487329	1lxpc	mt021	1971	1:24000
Dast-Blanchard complex, 8 to 25 percent slopes	252E	43	1487330	1lxpd	mt021	1971	1:24000
Cabba-Dast complex, 8 to 15 percent slopes	312D	846	342198	ch2n	mt025	1991	1:24000
Reeder-Dast complex, 4 to 15 percent slopes	242D	791	342162	ch1h	mt025	1991	1:24000
Cabba-Dast complex, 15 to 25 percent slopes	512E	368	342239	ch3z	mt025	1991	1:24000
Dast-Rock outcrop complex, 15 to 45 percent slopes	952F	933	344286	ck80	mt051	1992	1:24000
Cambert-Dast-Cabba complex, 4 to 15 percent slopes	40	53718	344403	ckcs	mt055	1981	1:24000
Cabba-Wabek-Dast complex, 15 to 45 percent slopes	30	15870	344392	ckcf	mt055	1981	1:24000
Cabba-Dast complex, 15 to 45 percent slopes	29	12750	344390	ckcc	mt055	1981	1:24000
Dast fine sandy loam, 2 to 8 percent slopes	52	7553	344416	ckd6	mt055	1981	1:24000
Dast fine sandy loam, 8 to 15 percent slopes	53	5200	344417	ckd7	mt055	1981	1:24000
Dast-Blanchard complex, 8 to 25 percent slopes	55	3682	344419	ckd9	mt055	1981	1:24000
Dast-Blanchard complex, 2 to 8 percent slopes	54	1126	344418	ckd8	mt055	1981	1:24000
Ridge-Dast sandy loams, 8 to 45 percent slopes	242F	13253	344518	ckhh	mt065	1996	1:24000
Ridge-Dast-Rock outcrop complex, 4 to 35 percent slopes	240E	8358	344515	ckhd	mt065	1996	1:24000
Dast-Ridge sandy loams, 2 to 8 percent slopes	242D	3842	344517	ckhg	mt065	1996	1:24000
Cambert, calcareous-Cabba-Dast complex, 4 to 15 percent slopes	23	542	344839	cktv	mt079	1986	1:24000
Dast-Lisk fine sandy loams, 4 to 15 percent slopes	40	141	344904	ckwy	mt079	1986	1:24000
Blanchard-Dast complex, 4 to 15 percent slopes	10	53	344775	ckrs	mt079	1986	1:24000
Dast-Blanchard complex, 8 to 25 percent slopes	DbD	1520	345331	clbq	mt083	1973	1:24000
Cabba-Dast fine sandy loams, 25 to 45 percent slopes	202F	2349	345090	cl2y	mt101	1992	1:24000
Zahill-Dast-Cabba complex, 25 to 65 percent slopes	722F	815	345258	cl8c	mt101	1992	1:24000
Cohagen-Dast fine sandy loams, 4 to 25 percent slopes	483E	1408	1899180	21r7w	mt111	1966	1:20000
Ridge-Dast sandy loams, 8 to 45 percent slopes	242F	82	1913566	ckhh	mt111	1966	1:20000
Ridge-Dast-Rock outcrop complex, 4 to 35 percent slopes	240E	56	1913564	ckhd	mt111	1966	1:20000
Dast-Ridge sandy loams, 2 to 8 percent slopes	242D	16	1913565	ckhg	mt111	1966	1:20000
Dast-Parshall sandy loams, rolling	Dk	11983	345934	clz5	mt607	1970	1:24000
Dast complex, hilly	DHc	9057	345915	clyk	mt607	1970	1:24000
Dast complex, very steep	DHd	4517	345916	clyl	mt607	1970	1:24000
Dast sandy loam, rolling	DHa	3183	345913	clyh	mt607	1970	1:24000
Vebar complex, rolling	VM	2617	346205	cm7x	mt607	1970	1:24000
Dast sandy loam, hilly	DHb	2298	345914	clyj	mt607	1970	1:24000
Dast-Rentsac complex, 2 to 20 percent slopes	51	2791	341936	cgt6	mt613	1975	1:24000
Dast family, 50 to 80 percent slopes	13	77691	504505	jxzc	ut624	1985	1:24000
Dast-Helper-Gladlow complex, 6 to 35 percent slopes	205	43657	1480218	1lp8z	wy041		1:24000
Dast-Artemesia complex, 5 to 25 percent slopes	201	39856	1480222	1lp93	wy041		1:24000
Dast-Roundor-Badland complex, 3 to 60 percent slopes	208	12033	1481072	1lq5j	wy041		1:24000
Lone Rock-Dast families, complex, 15 to 50 percent slopes	407		3250481	5992	wy629		1:24000
Assinniboine-Dast complex, 3 to 65 percent slopes	107	3018	361097	d3r9	wy633	1987	1:24000
Dast variant loamy fine sand, 30 to 65 percent slopes	132	127	361122	d3s3	wy633	1987	1:24000
Lone Rock-Dast families, complex, 15 to 50 percent slopes	407	1346	157885	5992	wy656	2008	1:24000
Assinniboine-Dast fine sandy loams, 3 to 65 percent slopes	982	476	1529217	1nb8l	wy719	2013	1:24000

Map of Series Extent

Approximate geographic distribution of the DAST 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).