Soil Data Explorer - ALEXANDRIA

Official Series Description

Lab Data Summary

Aggregate lab data for the ALEXANDRIA soil series. This aggregation is based on all pedons with a current taxon name of ALEXANDRIA, 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 ALEXANDRIA were used in the calculation. Source: KSSL snapshot (updated 2025-01-21). 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
111	CR-030	1974-OH033-030	Alexandria	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	HU-E02	1942-OH077-E02	Alexandria	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	RO-062	1958-OH141-062	Alexandria	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	RO-064	1958-OH141-064	Alexandria	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	MW-002	1961-OH117-002	Alexandria	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	PY-017	1970-OH129-017	Alexandria	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	WN-067	1977-OH169-067	Alexandria	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	LC-024	1979-OH089-024	Alexandria	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	MW-005	YYYY-OH117-005	Alexandria	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	MW-010	YYYY-OH117-010	Alexandria	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	MW-011	YYYY-OH117-011	Alexandria	n/a	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 ALEXANDRIA 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 ALEXANDRIA series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot (updated 2025-10-03), parsed OSD records (updated 2025-10-07) and snapshot of SC database (updated 2025-12-01).

Select annual climate data summaries for the ALEXANDRIA 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 2025-10-08).

Geomorphic description summaries for the ALEXANDRIA 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 2025-10-06).

Competing Series

Soil series competing with ALEXANDRIA share the same family level classification in Soil Taxonomy. Source: parsed OSD records (updated 2025-10-07) and snapshot of the SC database (updated 2025-12-01).

Select annual climate data summaries for the ALEXANDRIA 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 2025-10-08).

Geomorphic description summaries for the ALEXANDRIA 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 2025-10-06).

There are insufficient data to create the 3D mountains figure.

Soil series sharing subgroup-level classification with ALEXANDRIA, 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 2025-12-01).

Block Diagrams

Click a link below to display the diagram. Note that these diagrams may be from multiple survey areas.

1. OH-2012-02-16-28 | Delaware County - July 1969

   Major soils in the Bennington-Pewamo-Cardington soil association and their underlying material (Soil Survey of Delaware County, Ohio; July 1969).

2. OH-2012-02-16-32 | Huron County - June 1994

   Typical pattern of soils and parent material in the Bennington-Cardington-Condit association (Soil Survey of Huron County, Ohio; June 1994).

Map Units

Map units containing ALEXANDRIA 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
Alexandria silt loam, 25 to 50 percent slopes	AdF	1295	288126	31b8v	oh005	1976	1:15840
Alexandria silt loam, 12 to 18 percent slopes, moderately eroded	AdD2	1272	288124	31b8q	oh005	1976	1:15840
Alexandria silt loam, 18 to 25 percent slopes	AdE	520	288125	31b8r	oh005	1976	1:15840
Alexandria silty clay loam, 12 to 18 percent slopes, moderately eroded	AeD2	7	1592618	31b8y	oh005	1976	1:15840
Alexandria silt loam, 6 to 12 percent slopes, moderately eroded	AdC2	1	1592603	31b8x	oh005	1976	1:15840
Alexandria silt loam, 6 to 12 percent slopes, moderately eroded	AdC2	2066	168536	31b8x	oh033	1975	1:15840
Alexandria silt loam, 2 to 6 percent slopes	AdB	1038	168535	31b8t	oh033	1975	1:15840
Hennepin-Alexandria silt loams, 18 to 50 percent slopes	HpE	775	168570	5ndr	oh033	1975	1:15840
Alexandria silt loam, 12 to 18 percent slopes, moderately eroded	AdD2	573	168537	31b8q	oh033	1975	1:15840
Alexandria silt loam, 25 to 50 percent slopes	AgF	44	1653919	1sj17	oh043	1998	1:12000
Alexandria silt loam, 18 to 25 percent slopes, eroded	AdE2	1707	167869	5mp4	oh049	1977	1:15840
Alexandria silt loam, 12 to 18 percent slopes, moderately eroded	AdD2	1120	167868	31b8q	oh049	1977	1:15840
Alexandria silt loam, 6 to 12 percent slopes, eroded	AdC2	514	167867	5mp2	oh049	1977	1:15840
Alexandria silt loam, 2 to 6 percent slopes	AdB	401	167866	31b8t	oh049	1977	1:15840
Alexandria silt loam, 12 to 18 percent slopes, moderately eroded	AdD2	369	1398044	31b8q	oh073	1986	1:15840
Alexandria silt loam, 18 to 25 percent slopes	AdE	299	1398045	1hxs7	oh073	1986	1:15840
Alexandria silt loam, 25 to 40 percent slopes	AdF	213	1398046	1hxs8	oh073	1986	1:15840
Alexandria silt loam, 18 to 35 percent slopes	AbE	95	1398175	1hxxf	oh073	1986	1:15840
Alexandria silt loam, 20 to 35 percent slopes, eroded	AcE2	13	1398181	1hxxm	oh073	1986	1:15840
Alexandria silt loam, 6 to 12 percent slopes, eroded	AcC2	1	1398180	1hxxl	oh073	1986	1:15840
Alexandria silt loam, 25 to 50 percent slopes	AcF	2532	167954	31b8v	oh077	1988	1:15840
Alexandria silty clay loam, 12 to 18 percent slopes, moderately eroded	AdD2	1573	167955	31b8y	oh077	1988	1:15840
Alexandria silt loam, 12 to 18 percent slopes	AcD	11	1605960	1qx45	oh077	1988	1:15840
Alexandria silt loam, 6 to 12 percent slopes, moderately eroded	AcC2	1	1605959	31b8x	oh077	1988	1:15840
Alexandria silt loam, 6 to 12 percent slopes, moderately eroded	AcC2	6	1593258	31b8x	oh117	1986	1:15840
Alexandria silt loam, 12 to 18 percent slopes, moderately eroded	AcD2	5	1593259	31b8q	oh117	1986	1:15840
Alexandria silt loam, 2 to 6 percent slopes	AcB	1	1593257	31b8t	oh117	1986	1:15840
Alexandria silt loam, 2 to 6 percent slopes, eroded	AdB2	1737	171227	5r5g	oh129	1977	1:15840
Alexandria silt loam, 6 to 12 percent slopes, eroded	AdC2	1680	171228	5r5h	oh129	1977	1:15840
Alexandria silt loam, 12 to 18 percent slopes, moderately eroded	AdD2	790	171229	31b8q	oh129	1977	1:15840
Alexandria silt loam, 18 to 35 percent slopes	AdE	634	171230	5r5k	oh129	1977	1:15840
Alexandria silt loam, 20 to 35 percent slopes, eroded	AdE2	7	1402978	1j2xc	oh129	1977	1:15840
Alexandria silt loam, 20 to 35 percent slopes, eroded	AcE2	42	1688993	1tpjn	oh131	1984	1:15840
Alexandria silt loam, 12 to 18 percent slopes, moderately eroded	AdD2	2084	170709	31b8q	oh139	1971	1:15840
Alexandria silt loam, 12 to 18 percent slopes	AdD	1556	170708	5qmq	oh139	1971	1:15840
Alexandria silt loam, 6 to 12 percent slopes, moderately eroded	AdC2	880	170707	31b8x	oh139	1971	1:15840
Alexandria silt loam, 18 to 25 percent slopes	AdE	640	170710	31b8r	oh139	1971	1:15840
Alexandria silt loam, 6 to 12 percent slopes	AdC	494	170706	5qmn	oh139	1971	1:15840
Alexandria silt loam, 2 to 6 percent slopes	AdB	361	170705	31b8t	oh139	1971	1:15840
Alexandria silt loam, 25 to 40 percent slopes	AdF	233	170712	5qmv	oh139	1971	1:15840
Alexandria silt loam, 18 to 25 percent slopes, moderately eroded	AdE2	182	170711	5qmt	oh139	1971	1:15840
Alexandria silty clay loam, 12 to 18 percent slopes, severely eroded	AeD3	147	170713	5qmw	oh139	1971	1:15840
Alexandria silty clay loam, 12 to 18 percent slopes, moderately eroded	AcD2	2	1406529	31b8y	oh139	1971	1:15840
Alexandria silt loam, 20 to 35 percent slopes, eroded	AcE2	2580	170835	5qrt	oh141	1997	1:15840
Alexandria silt loam, 12 to 20 percent slopes, eroded	AcD2	1463	170834	5qrs	oh141	1997	1:15840
Alexandria-Fox complex, 20 to 35 percent slopes, eroded	AeE2	1174	170836	5qrv	oh141	1997	1:15840
Alexandria silt loam, 6 to 12 percent slopes, eroded	AcC2	522	170833	5qrr	oh141	1997	1:15840
Alexandria silt loam, 18 to 50 percent slopes	AdF	679	287157	9mt4	oh169	1981	1:15840
Alexandria silt loam, 12 to 18 percent slopes	AdD	274	287156	9mt3	oh169	1981	1:15840
Alexandria silt loam, 25 to 50 percent slopes	AeF	38	2216933	31b8v	oh169	1981	1:15840
Alexandria silt loam, 18 to 25 percent slopes	AeE	37	2216932	31b8r	oh169	1981	1:15840
Alexandria silt loam, 6 to 12 percent slopes, moderately eroded	AdC2	1	1542618	31b8x	oh175	1980	1:15840
Hennepin-Alexandria silt loams, 18 to 50 percent slopes	HpE	1	1542626	1ns74	oh175	1980	1:15840

Map of Series Extent

Approximate geographic distribution of the ALEXANDRIA 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 2025-10-19).