Soil Data Explorer - GRAYFORD

Official Series Description

Lab Data Summary

Aggregate lab data for the GRAYFORD soil series. This aggregation is based on all pedons with a current taxon name of GRAYFORD, 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 GRAYFORD 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
114A	93P0028	S1992IN119026	Grayford	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.3277779,-86.6944427
114B	JF7702	1977IN077002	Grayford	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.7553528,-85.5385667
114B	RI7903	1979IN137003	Grayford	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.1950639,-85.4103472
114B	RI7905	1979IN137005	Grayford	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.1901861,-85.4224694
114B	06N0333	S2005IN079001	Grayford	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.0419426,-85.5287476
114B	06N0334	S2005IN079002	Grayford	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.0449982,-85.5283356
n/a	HY-s43	1961-OH071-S43	Grayford	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	HY-060	1967-OH071-060	Grayford	4	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 GRAYFORD 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 GRAYFORD 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 GRAYFORD 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 GRAYFORD 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 GRAYFORD 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 GRAYFORD 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 GRAYFORD 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 flats position figure.

Soil series sharing subgroup-level classification with GRAYFORD, 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. IN-2010-09-24-16 | Owen County -

   Typical pattern of soils and parent materials in the Stinesville-Grayford-Ryker association (Soil Survey of Owen County, Indiana).

2. IN-2012-01-19-34 | Jefferson County - May 1985

   Pattern of soils and parent material in the Ryker-Grayford map unit (Soil Survey of Jefferson County, Indiana; 1985).

3. KY-2012-01-31-11 | Henry and Trimble Counties - April 1992

   Pattern of soils and parent material in the Cincinnati-Ryker-Beasley general soil map unit in Trimble County (Soil Survey of Henry and Trimble Counties, Kentucky; April 1992).

Map Units

Map units containing GRAYFORD 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
Ryker-Grayford silt loams, karst, rolling, eroded	RzvC2	2618	185178	66ph	in019	2001	1:12000
Ryker-Grayford silt loams, 6 to 12 percent slopes, eroded	RztC2	2251	210676	7270	in019	2001	1:12000
Ryker-Grayford silt loams, 6 to 12 percent slopes, severely eroded	RztC3	1452	201113	6r8j	in019	2001	1:12000
Ryker-Grayford silt loams, karst, rolling, severely eroded	RzvC3	1289	185179	66pj	in019	2001	1:12000
Grayford silt loam, karst, hilly, severely eroded	GykD3	625	198262	6n9k	in019	2001	1:12000
Grayford silt loam, karst, hilly, eroded	GykD2	581	201118	6r8p	in019	2001	1:12000
Grayford silt loam, 12 to 25 percent slopes, eroded	GyaD2	436	210678	7272	in019	2001	1:12000
Grayford silt loam, 12 to 25 percent slopes, severely eroded	GyaD3	148	210679	7273	in019	2001	1:12000
Grayford silt loam, 12 to 25 percent slopes, gullied	GyaD5	23	201122	6r8t	in019	2001	1:12000
Grayford-Ryker silt loams, 4 to 10 percent slopes, eroded	GrC2	1318	162385	5fz7	in031	1980	1:15840
Grayford silt loam, 10 to 20 percent slopes	GfD	765	162384	5fz6	in031	1980	1:15840
Grayford silt loam, 12 to 18 percent slopes, eroded	GrD2	2931	964652	11cst	in077	1982	1:15840
Grayford silt loam, 6 to 12 percent slopes, eroded	GrC2	1290	964650	11csr	in077	1982	1:15840
Grayford silt loam, 12 to 18 percent slopes, severely eroded	GrD3	1081	964653	11csv	in077	1982	1:15840
Grayford silt loam, 6 to 12 percent slopes, severely eroded	GrC3	320	964651	11css	in077	1982	1:15840
Hickory-Grayford silt loams, 12 to 25 percent slopes, eroded	HizE2	3119	1716797	1vmgk	in079	2010	1:12000
Ryker-Grayford-Muscatatuck complex, karst, rolling, severely eroded	RzhC3	1481	848708	xh4p	in079	2010	1:12000
Caneyville and Grayford silt loams, 12 to 25 percent slopes, eroded	CcgD2	1418	1612735	1r45q	in079	2010	1:12000
Hickory-Grayford silt loams, 12 to 25 percent slopes, severely eroded	HizE3	1090	1716799	1vmgm	in079	2010	1:12000
Bonnell-Grayford silt loams, karst, hilly, eroded	BnxE2	610	1861470	20h0f	in079	2010	1:12000
Caneyville and Grayford silt loams, 12 to 25 percent slopes, severely eroded	CcgD3	594	709113	rswm	in079	2010	1:12000
Bonnell-Grayford silt loams, karst, hilly, severely eroded	BnxE3	51	2427927	2mhg7	in079	2010	1:12000
Grayford silt loam, 6 to 12 percent slopes	GrC	1189	163217	5gv2	in109	1979	1:15840
Grayford silt loam, 12 to 18 percent slopes, eroded	GrD2	244	163218	5gv3	in109	1979	1:15840
Stinesville-Ryker-Grayford silt loams, karst, hilly, eroded	StgD2	2614	166309	5l1t	in119	1997	1:12000
Grayford silt loam, 18 to 25 percent slopes, eroded	GmcE2	1956	166007	5kr2	in119	1997	1:12000
Grayford-Ryker silt loams, 12 to 18 percent slopes, eroded	GmhD2	1534	166008	5kr3	in119	1997	1:12000
Grayford silt loam, 12 to 18 percent slopes, severely eroded	GmcD3	1006	166006	5kr1	in119	1997	1:12000
Stinesville-Ryker-Grayford silt loams, karst, rolling, eroded	StgC2	800	166308	5l1s	in119	1997	1:12000
Grayford silt loam, 6 to 12 percent slopes, eroded	GrC2	1137	159833	5c9x	in133	1979	1:15840
Grayford silt loam, 12 to 18 percent slopes, eroded	GrD2	990	159834	5c9y	in133	1979	1:15840
Grayford silt loam, 18 to 25 percent slopes, eroded	GrE2	529	159835	5c9z	in133	1979	1:15840
Grayford silt loam, 18 to 35 percent slopes	GrE	3035	1479635	1lnp5	in137	1982	1:15840
Grayford silty clay loam, 12 to 18 percent slopes, eroded	GrD2	2476	1479634	1lnp4	in137	1982	1:15840
Grayford-Beasley complex, 12 to 20 percent slopes, eroded	GbD2	5204	551921	lj9x	ky622	1989	1:20000
Boston-Grayford silt loams, 2 to 6 percent slopes, moderately eroded	BnB2	3631	1420369	1jp0c	oh071	1973	1:15840
Boston-Grayford silt loams, 2 to 6 percent slopes	BnB	2220	1420368	1jp0b	oh071	1973	1:15840

Map of Series Extent

Approximate geographic distribution of the GRAYFORD 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).