Soil Data Explorer - MARIAS

Official Series Description

Lab Data Summary

Aggregate lab data for the MARIAS soil series. This aggregation is based on all pedons with a current taxon name of MARIAS, 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 MARIAS 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
52	85P0838	84MT015492	Marias	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	48.0813904,-111.3252792
52	88P0850	88MT105002	Marias	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	48.4522209,-107.2119446
52	40A3336	S1962MT105001	MARIAS	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	48.4518814,-107.2338028
52	40A3337	S1962MT105002	MARIAS	8	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	48.4668808,-107.2574081
52	40A3649	S1967MT013002	Marias	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	47.3332405,-111.0841904
58A	40A3528	S1951MT111001	Marias	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	45.9521523,-108.1874084

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the MARIAS 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 MARIAS 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 MARIAS 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 MARIAS 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 MARIAS 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 MARIAS 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 MARIAS 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 MARIAS, 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 MARIAS 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
Marias silty clay loam, 0 to 2 percent slopes	94A	6554	343285	cj6q	mt011	1992	1:24000
Marias silty clay loam, 2 to 8 percent slopes	94C	2002	343286	cj6r	mt011	1992	1:24000
Marias silty clay, 0 to 2 percent slopes	61A	1930	343589	cjjj	mt017	1995	1:24000
Marias clay, 0 to 2 percent slopes	25A	1626	343354	cj8y	mt017	1995	1:24000
Marias clay, 2 to 8 percent slopes	534C	823	343527	cjgj	mt017	1995	1:24000
Marias silty clay, 0 to 2 percent slopes	Ma	4860	342024	cgx1	mt021	1971	1:24000
Marias silty clay, 2 to 4 percent slopes	Mb	1415	342025	cgx2	mt021	1971	1:24000
Marias silty clay, 4 to 8 percent slopes	Mc	990	342026	cgx3	mt021	1971	1:24000
Marias silty clay, 2 to 8 percent slopes	161	9185	342392	ch8x	mt027	1979	1:24000
Marias silty clay, 0 to 2 percent slopes	160	4308	342391	ch8w	mt027	1979	1:24000
Marias silty clay, 2 to 8 percent slopes	731C	731	342692	chll	mt033	2002	1:24000
Marias silty clay, 0 to 2 percent slopes	731A	622	342691	chlk	mt033	2002	1:24000
Marias silty clay, 0 to 4 percent slopes	74B	3481	344048	ck0b	mt041	1994	1:24000
Marias silty clay, 0 to 4 percent slopes	47B	16066	344212	ck5m	mt051	1992	1:24000
Marias-Kobase complex, 0 to 4 percent slopes	471B	4656	344211	ck5l	mt051	1992	1:24000
Marias clay	113	1128	344309	ck8r	mt055	1981	1:24000
Marias silty clay, 0 to 4 percent slopes	63A	7888	344613	cgkv	mt065	1996	1:24000
Marias silty clay, 0 to 4 percent slopes	57	3571	344726	ckq6	mt069	1989	1:24000
Marias silty clay, 0 to 2 percent slopes	93	1094	345049	cl1m	mt079	1986	1:24000
Marias silty clay	Ma	1440	345351	clcc	mt083	1973	1:24000
Marias clay	Mr	2942	348861	cq0l	mt091	1971	1:24000
Marias silty clay, 0 to 4 percent slopes	47B	11151	345195	cl6b	mt101	1992	1:24000
Marias clays, fans, saline-alkali	Mc	12440	345475	clhc	mt103	1961	1:20000
Marias-Hoven clays, saline	Md	12227	345476	clhd	mt103	1961	1:20000
Marias clay, saline-alkali, 1 to 10 percent slopes	Mb	5577	345474	clhb	mt103	1961	1:20000
Marias clays, saline-alkali, 0 to 1 percent slopes	Ma	1080	345473	clh9	mt103	1961	1:20000
Marias and Promise clay	Mf	748	345478	clhg	mt103	1961	1:20000
Marias-Pierre clays, saline-Alkali	Me	126	345477	clhf	mt103	1961	1:20000
Marias clay, 1 to 9 percent slopes	38	49655	345554	clkx	mt105	1976	1:24000
Evanston-Marias complex, 3 to 9 percent slopes	14	3094	345528	clk2	mt105	1976	1:24000
Lonna-Marias complex, 1 to 3 percent slopes	37	2329	345553	clkw	mt105	1976	1:24000
Marias clay, 4 to 8 percent slopes	Mf	2338	346072	cm3m	mt607	1970	1:24000
Marias clay, 0 to 2 percent slopes	Md	2120	346070	cm3k	mt607	1970	1:24000
Marias clay, 8 to 15 percent slopes	Mg	1677	346073	cm3n	mt607	1970	1:24000
Marias clay, 2 to 4 percent slopes	Me	1348	346071	cm3l	mt607	1970	1:24000
Marias clay, 2 to 8 percent slopes	Mc	8319	347098	cn5q	mt611	1971	1:24000
Lisam-Marias complex, steep	LN	3234	347089	cn5f	mt611	1971	1:24000
Marias clay, 8 to 15 percent slopes	Md	2746	347099	cn5r	mt611	1971	1:24000
Lisam-Marias complex, 8 to 15 percent slopes	Lm	2329	347088	cn5d	mt611	1971	1:24000
Marias silty clay, 0 to 2 percent slopes	139	12313	341800	cgnt	mt613	1975	1:24000
Marias silty clay, 2 to 4 percent slopes	140	7525	341802	cgnw	mt613	1975	1:24000
Kobar-Marias complex, 0 to 4 percent slopes	117	3773	341776	cgn1	mt613	1975	1:24000
Marias silty clay, 4 to 8 percent slopes	141	3446	341803	cgnx	mt613	1975	1:24000
Linnet-Marias complex, 2 to 8 percent slopes	132	3037	341793	cgnl	mt613	1975	1:24000
Linnet-Marias complex, 0 to 2 percent slopes	131	1795	341792	cgnk	mt613	1975	1:24000
Marias silty clay, 0 to 4 percent slopes	47B	22636	346792	cmvv	mt615	1992	1:24000
Marias-Kobase complex, 0 to 4 percent slopes	471B	14309	346790	cmvs	mt615	1992	1:24000
Linnet-Marias silty clays, 0 to 4 percent slopes	341B	3695	346699	cmrv	mt615	1992	1:24000
Marias silty clay, 4 to 8 percent slopes	47C	1102	346793	cmvw	mt615	1992	1:24000
Marias silty clay, 4 to 8 percent slopes	19C	60	155315	56m5	mt622	1997	1:24000
Marias silty clay, 0 to 4 percent slopes	63B	90	2513981	cgkv	mt624	2021	1:24000
Marias silty clay loam, cool, 2 to 8 percent slopes	75	345	146502	4xfw	mt636	1983	1:24000
Marias-Nunemaker complex, 0 to 4 percent slopes	50B	33583	348694	cpv6	mt657	1990	1:24000
Kobase-Marias complex, 0 to 4 percent slopes	240B	19002	348483	cpmd	mt657	1990	1:24000
Marias-Linnet silty clays, 0 to 4 percent slopes	150B	15850	348358	cphc	mt657	1990	1:24000
Marias silty clay, 0 to 4 percent slopes	44B	12624	348658	cpt1	mt657	1990	1:24000
Nunemaker-Marias complex, 4 to 8 percent slopes	550C	2930	348717	cpvy	mt657	1990	1:24000
Lothair-Marias complex, 4 to 15 percent slopes	249D	2659	348493	cpmq	mt657	1990	1:24000
Marias silty clay, 0 to 4 percent slopes	63A	4625	341708	cgkv	mt666	2008	1:24000
Marias silty clay, 0 to 3 percent slopes	2173	197	341114	cfyp	nd013	1991	1:24000
Marias silty clay, 3 to 6 percent slopes	2174	10	341115	cfyq	nd013	1991	1:24000
Marias silty clay, 0 to 3 percent slopes	2173	969	341314	cg54	nd023	1992	1:24000
Marias silty clay, 3 to 6 percent slopes	2174	557	341315	cg55	nd023	1992	1:24000

Map of Series Extent

Approximate geographic distribution of the MARIAS 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).