Soil Data Explorer - BLAIR

Official Series Description

Lab Data Summary

Aggregate lab data for the BLAIR soil series. This aggregation is based on all pedons with a current taxon name of BLAIR, 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 BLAIR 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
113	79IL145008	1979IL145008	Blair	1	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.1816483,-89.3080859
113	79IL145022	1979IL145022	Blair	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.0734555,-89.327617
113	83IL121031	1983IL121031	Blair	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.8046139,-88.9488639
113	84IL121016	1984IL121016	Blair	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.8077472,-89.069625
113	84IL191009	1984IL191009	Blair	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.3913778,-88.5828083
113	85IL121022	1985IL121022	Blair	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.6478111,-88.9547889
113	85IL121062	1985IL121062	Blair	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.6805944,-88.9502194
113	86IL121011	1986IL121011	Blair	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.5026889,-88.6996472
113	89IL055005	1989IL055005	Blair	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.0708778,-89.0818167
113	84P0258	83IL079020	Blair	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.1688881,-88.3116684
113	86P0516	85IL121006	Blair	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.5441666,-89.0519409
113	88P0482	86IL191033	Blair	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.5338898,-88.6191635
113	40A2800	S1972IL081003	BLAIR	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.1319427,-88.7513885
114B	78IL157045	1978IL157045	Blair	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.1327682,-89.6292461
114B	81IL133005	1981IL133005	Blair	1	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.2384302,-90.0312285
114B	82IL133004	1982IL133004	Blair	1	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.3001376,-90.0720688
114B	81P0061	S1980IL145028	Blair	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.1633339,-89.4433365
114B	81P0037	S1980IL157125	BLAIR	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.1669426,-89.7133331
115B	81IL133010	1981IL133010	Blair	1	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.2178082,-90.1373902
115B	82IL133002	1982IL133002	Blair	1	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.2239248,-90.1526601
115C	69IL001002	1969IL001002	Blair	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.0992182,-91.1345754
115C	69IL001003	1969IL001003	Blair	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.0585492,-91.1501953
n/a	84IL191006	1984IL191006	Blair	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a

Water Balance

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

Soil series sharing subgroup-level classification with BLAIR, 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. IL-2010-08-31-01 | Clay County - 1998

   Typical pattern of soils and parent material in the Bluford-Hickory-Ava association (Soil Survey of Clay County, Illinois; 1998).

2. IL-2010-08-31-03 | Clinton County - 2002

   Typical pattern of soils and parent material in the Hoyleton-Darmstadt-Cisne association (Soil Survey of Clinton County, Illinois; 2002).

3. IL-2010-08-31-05 | Clinton County - 2002

   Typical pattern of soils and parent material in the Bluford-Hickory-Blair association (Soil Survey of Clinton County, Illinois; 2002).

4. IL-2010-08-31-06 | Clinton County - 2002

   Typical pattern of soils and parent material in the Blair-Muren-Iva association (Soil Survey of Clinton County, Illinois; 2002).

5. IL-2010-09-01-06 | Edgar County - 2002

   Typical pattern of soils and parent material in the Weir-Stoy-Hickory association (Soil Survey of Edgar County, Illinois; 2002).

6. IL-2010-09-01-10 | Franklin and Jefferson Counties - 2003

   Typical pattern of soils and parent material in the Hoyleton-Cisne association (Soil Survey of Franklin and Jefferson Counties, Illinois; 2003).

7. IL-2010-09-01-11 | Franklin and Jefferson Counties - 2003

   Typical pattern of soils and parent material in the Bluford-Wynoose association (Soil Survey of Franklin and Jefferson Counties, Illinois; 2003).

8. IL-2010-09-01-13 | Franklin and Jefferson Counties - 2003

   Typical pattern of soils and parent material in the Ava-Bluford-Plumfield association (Soil Survey of Franklin and Jefferson Counties, Illinois; 2003).

9. IL-2010-09-01-14 | Franklin and Jefferson Counties - 2003

   Typical pattern of soils and parent material in the Grantsburg-Zanesville association (Soil Survey of Franklin and Jefferson Counties, Illinois; 2003).

10. IL-2010-09-01-77 | Washington County - 1998

    Typical pattern of soils and parent material in the Bluford-Hoyleton-Wynoose association (Soil Survey of Washington County, Illinois; 1998).

11. IL-2010-09-01-78 | Washington County - 1998

    Typical pattern of soils and parent material in the Marine-Rushville-Muren association (Soil Survey of Washington County, Illinois; 1998).

12. IL-2010-09-01-80 | Washington County - 1998

    Typical pattern of soils and parent material in the Bluford-Hickory-Blair association (Soil Survey of Washington County, Illinois; 1998).

13. IL-2010-09-09-01 | Wayne County -

    Typical pattern of soils and parent material in the Bluford-Wynoose association (Soil Survey of Wayne County, Illinois).

14. IL-2010-09-09-02 | Wayne County -

    Typical pattern of soils and parent material in the Ava-Blair-Hickory association (Soil Survey of Wayne County, Illinois).

15. IL-2011-08-04-77 | Monroe County - 1987

    Typical pattern of soils and parent material in the Blair-Marine association (Soil Survey of Monroe County, Illinois; 1987).

16. IL-2011-08-04-87 | Perry County - 1988

    Typical pattern of soils and parent material in the Hoyleton-Cisne association (Soil Survey of Perry County, Illinois; 1988).

17. IL-2011-08-04-88 | Perry County - 1988

    Typical pattern of soils and parent material in the Hosmer-Hickory-Blair association (Soil Survey of Perry County, Illinois; 1988).

18. IL-2011-08-05-02 | Washington County - 1998

    Typical pattern of soils and parent material in the Marine-Rushville-Muren association (Soil Survey of Washington County, Illinois; 1998).

19. IL-2011-08-05-03 | Washington County - 1998

    Typical pattern of soils and parent material in the Bluford-Hoyleton-Wynoose association (Soil Survey of Washington County, Illinois; 1998).

20. IL-2011-08-05-05 | Washington County - 1998

    Typical pattern of soils and parent material in the Bluford-Hickory-Blair association (Soil Survey of Washington County, Illinois; 1998).

Map Units

Map units containing BLAIR 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
Blair-Atlas silty clay loams, 5 to 10 percent slopes, severely eroded	927C3	3137	1607472	1qypy	il023	2006	1:12000
Blair-Atlas silt loams, 5 to 10 percent slopes, eroded	927C2	3032	1607470	1qypw	il023	2006	1:12000
Blair-Grantfork complex, 5 to 10 percent slopes, eroded	934C2	1545	2109199	28ssp	il025	1993	1:12000
Blair silt loam, 5 to 10 percent slopes, eroded	5C2	6505	174665	2t963	il027	1992	1:15840
Blair silty clay loam, 5 to 10 percent slopes, severely eroded	5C3	5945	174666	2t964	il027	1992	1:15840
Blair-Grantfork complex, 5 to 10 percent slopes, eroded	934C2	5285	174688	5vs3	il027	1992	1:15840
Blair silty clay loam, 10 to 18 percent slopes, severely eroded	5D3	1810	174667	2t967	il027	1992	1:15840
Blair-Grantfork complex, 2 to 5 percent slopes, eroded	934B2	555	174687	5vs2	il027	1992	1:15840
Ava-Blair complex, 2 to 7 percent slopes, eroded	844B2	13425	174864	5vys	il035	1992	1:15840
Blair silt loam, 2 to 5 percent slopes, eroded	5B2	639	174844	5vy4	il035	1992	1:15840
Blair-Atlas complex, 5 to 10 percent slopes, eroded	927C2	265	174878	5vz7	il035	1992	1:15840
Blair silt loam, 2 to 5 percent slopes, severely eroded	5B3	215	174845	5vy5	il035	1992	1:15840
Blair silt loam, 5 to 10 percent slopes, eroded	5C2	1325	843528	2t963	il045	1997	1:12000
Blair soils, 7 to 12 percent slopes, severely eroded	5D3	3145	175484	5wls	il047	1967	1:15840
Blair silt loam, 7 to 12 percent slopes, eroded	5D2	3041	175483	5wlr	il047	1967	1:15840
Blair silty clay loam, 5 to 10 percent slopes, severely eroded	5C3	11380	807095	2t964	il055	2005	1:12000
Blair-Atlas silty clay loams, 10 to 18 percent slopes, severely eroded	927D3	2579	807190	w2yd	il055	2005	1:12000
Blair silty clay loam, 5 to 10 percent slopes, severely eroded	5C3	19949	1540451	2t964	il081	2005	1:12000
Blair-Atlas silty clay loams, 10 to 18 percent slopes, severely eroded	927D3	4900	1540497	1nq0g	il081	2005	1:12000
Blair silt loam, 5 to 10 percent slopes, eroded	5C2	25	1540506	2t963	il081	2005	1:12000
Blair silt loam, 5 to 10 percent slopes, eroded	5C2	2363	176746	2t963	il101	1952	1:42240
Blair silty clay loam, 5 to 10 percent slopes, severely eroded	5C3	385	176747	2t964	il101	1952	1:42240
Blair silty clay loam, 7 to 15 percent slopes, severely eroded	5D3	169	176749	5xxl	il101	1952	1:42240
Blair silt loam, 7 to 15 percent slopes, eroded	5D2	130	176748	5xxk	il101	1952	1:42240
Blair silty clay loam, 5 to 10 percent slopes, severely eroded	5C3	95	2023910	2t964	il121	2008	1:12000
Blair silt loam, 5 to 10 percent slopes, eroded	5C2	1095	1721156	2t963	il135	2007	1:12000
Blair silty clay loam, 5 to 10 percent slopes, severely eroded	5C3	361	1721160	2t964	il135	2007	1:12000
Blair silty clay loam, 5 to 10 percent slopes, severely eroded	5C3	11559	1403689	2t964	il145	2005	1:12000
Blair silty clay loam, 10 to 18 percent slopes, severely eroded	5D3	8397	1403685	2t967	il145	2005	1:12000
Blair silt loam, 10 to 18 percent slopes	5D	2781	1403688	2t965	il145	2005	1:12000
Blair silt loam, 5 to 10 percent slopes, eroded	5C2	2296	200445	2t963	il157	2001	1:12000
Blair silty clay loam, 5 to 10 percent slopes, severely eroded	5C3	2026	200446	2t964	il157	2001	1:12000
Blair-Grantfork silt loams, 10 to 18 percent slopes, severely eroded	934D3	1301	200540	6qp1	il157	2001	1:12000
Blair silty clay loam, 10 to 18 percent slopes, severely eroded	5D3	784	200448	2t967	il157	2001	1:12000
Blair silt loam, 10 to 18 percent slopes, eroded	5D2	331	200447	2t966	il157	2001	1:12000
Blair-Atlas silty clay loams, 10 to 18 percent slopes, severely eroded	927D3	206	200524	6qnj	il157	2001	1:12000
Blair soils, 7 to 12 percent slopes, severely eroded	5D3	3910	2026805	2611t	il159	1967	1:12000
Blair silt loam, 7 to 12 percent slopes, eroded	5D2	3114	2026804	2611s	il159	1967	1:12000
Blair silty clay loam, 10 to 18 percent slopes, severely eroded	5D3	315	183092	2t967	il163	1997	1:12000
Blair silty clay loam, 5 to 10 percent slopes, severely eroded	5C3	303	183091	2t964	il163	1997	1:12000
Blair silt loam, 5 to 10 percent slopes, eroded	5C2	216	183090	2t963	il163	1997	1:12000
Blair silty clay loam, 5 to 10 percent slopes, severely eroded	5C3	1046	179702	2t964	il185	1962	1:20000
Blair silt loam, 5 to 10 percent slopes, eroded	5C2	170	179701	2t963	il185	1962	1:20000
Blair silty clay loam, 5 to 10 percent slopes, severely eroded	5C3	15309	1528897	2t964	il189	2006	1:12000
Blair silt loam, 5 to 10 percent slopes, eroded	5C2	9348	1528898	2t963	il189	2006	1:12000
Blair silty clay loam, 10 to 18 percent slopes, severely eroded	5D3	3337	1528895	2t967	il189	2006	1:12000
Blair silt loam, 10 to 18 percent slopes	5D	906	1528896	2t965	il189	2006	1:12000
Blair-Grantfork silt loams, 10 to 18 percent slopes, severely eroded	934D3	437	1528975	1nb0s	il189	2006	1:12000
Blair silt loam, 5 to 10 percent slopes, eroded	5C2	6283	1906358	2t963	il191	2008	1:12000
Blair silty clay loam, 5 to 10 percent slopes, severely eroded	5C3	785	1478036	2t964	il199	2007	1:12000
Blair-Atlas silty clay loams, 10 to 18 percent slopes, severely eroded	927D3	5	1902867	21w2t	il199	2007	1:12000

Map of Series Extent

Approximate geographic distribution of the BLAIR 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).