Soil Data Explorer - RAVENNA

Official Series Description

Lab Data Summary

Aggregate lab data for the RAVENNA soil series. This aggregation is based on all pedons with a current taxon name of RAVENNA, 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 RAVENNA 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
144A	67PA095027	1967PA095027	Ravenna	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.8652778,-75.1791667
n/a	AB-009	1953-OH007-009	Ravenna	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	WN-S06	1954-OH169-S06	Ravenna	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	CO-015	1956-OH029-015	Ravenna	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	GA-s20	1956-OH055-S20	Ravenna	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	CO-025	1957-OH029-025	Ravenna	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	MH-021	1957-OH099-021	Ravenna	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	WN-s19	1957-OH169-S19	Ravenna	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	CO-058	1958-OH029-058	Ravenna	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	CO-059	1958-OH029-059	Ravenna	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	CO-105	1959-OH029-105	Ravenna	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	WN-s25	1959-OH169-S25	Ravenna	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	MH-025	1961-OH099-025	Ravenna	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	MH-027	1961-OH099-027	Ravenna	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	SK-003	1962-OH151-003	Ravenna	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	MH-036	1964-OH099-036	Ravenna	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	SK-018	1964-OH151-018	Ravenna	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	ST-016	1966-OH153-016	Ravenna	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	TR-015	1974-OH155-015	Ravenna	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	TR-017	1974-OH155-017	Ravenna	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	TR-019	1974-OH155-019	Ravenna	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	WN-058	1976-OH169-058	Ravenna	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 RAVENNA 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 RAVENNA 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 RAVENNA 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 RAVENNA 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 terrace figure.

There are insufficient data to create the 3D flats position figure.

Competing Series

Soil series competing with RAVENNA 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 RAVENNA 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 RAVENNA 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 RAVENNA, 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. OH-2010-09-29-10 | Columbiana County -

   Representative pattern of soils and parent materials in the Canfield-Ravenna soils association (Soil Survey of Columbiana County, Ohio).

2. OH-2012-02-16-17 | Columbiana County - February 1968

   A schematic drawing showing the relationship of soils on the Wisconsin glacial outwash plain (in the valley to the right) and on the Wisconsin till plain (Soil Survey of Columbiana County, Ohio; February 1968).

3. PA-2012-03-12-04 | Beaver and Lawrence Counties - April 1982

   Pattern of soils and parent material in Ravenna-Canfield-Frenchtown association (Soil Survey of Beaver and Lawrence Counties, PA; 1982).

4. PA-2012-03-12-05 | Beaver and Lawrence Counties - April 1982

   Pattern of soils and parent material in Canfield-Ravenna-Loudonville association (Soil Survey of Beaver and Lawrence Counties, PA; 1982).

5. PA-2012-03-13-63 | Mercer County - April 1971

   Relationship of soils and underlying material in association 1 (Soil Survey of Mercer County, PA; 1971).

6. PA-2012-03-14-25 | Venango County - December 1975

   Pattern of soils and underlying material in Canfield-Ravenna association (Soil Survey of Venango County, PA; 1975).

Map Units

Map units containing RAVENNA 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
Ravenna silt loam, 2 to 6 percent slopes	RnB	2452	288189	2v04q	oh005	1976	1:15840
Ravenna silt loam, 0 to 2 percent slopes	RnA	1742	288188	2v04m	oh005	1976	1:15840
Ravenna silt loam, 2 to 6 percent slopes	ReB	8422	298817	2v04q	oh029	2005	1:12000
Ravenna silt loam, 0 to 2 percent slopes	ReA	1678	298816	2v04m	oh029	2005	1:12000
Ravenna silt loam, 2 to 6 percent slopes	ReB	2550	287584	2v04q	oh055	1979	1:15840
Ravenna silt loam, 0 to 2 percent slopes	ReA	2278	287583	2v04m	oh055	1979	1:15840
Ravenna silt loam, 2 to 6 percent slopes	ReB	870	286929	2v04q	oh075	1989	1:15840
Ravenna silt loam, 0 to 2 percent slopes	ReA	255	286928	2v04m	oh075	1989	1:15840
Ravenna silt loam, 2 to 6 percent slopes	RaB	11971	816807	2v04q	oh099	1966	1:15840
Ravenna silt loam, 0 to 2 percent slopes	RaA	634	816806	2v04m	oh099	1966	1:15840
Ravenna silt loam, 0 to 2 percent slopes	ReA	1912	288378	2v04m	oh103	1974	1:15840
Ravenna-Urban land complex, 0 to 2 percent slopes	RnA	740	288380	2v04n	oh103	1974	1:15840
Ravenna silt loam, 2 to 6 percent slopes	ReB	397	288379	2v04q	oh103	1974	1:15840
Ravenna silt loam, 2 to 6 percent slopes	ReB	2	1593251	2v04q	oh117	1986	1:15840
Ravenna silt loam, 2 to 6 percent slopes	ReB	9734	288487	2v04q	oh133	1973	1:15840
Ravenna silt loam, 0 to 2 percent slopes	ReA	5643	288486	2v04m	oh133	1973	1:15840
Ravenna silt loam, 2 to 6 percent slopes	ReB	1754	170791	2v04q	oh139	1971	1:15840
Ravenna silt loam, 0 to 2 percent slopes	ReA	847	170790	2v04m	oh139	1971	1:15840
Ravenna silt loam, 2 to 6 percent slopes	ReB	12395	288064	2v04q	oh151	1967	1:15840
Ravenna silt loam, 0 to 2 percent slopes	ReA	9721	288063	2v04m	oh151	1967	1:15840
Ravenna-Urban land complex, 0 to 6 percent slopes	Rn	2462	288065	2v04r	oh151	1967	1:15840
Ravenna silt loam, 0 to 2 percent slopes	ReA	2950	825387	2v04m	oh153	1969	1:20000
Ravenna silt loam, 2 to 6 percent slopes	ReB	2620	825388	2v04q	oh153	1969	1:20000
Ravenna-Urban land complex, 0 to 2 percent slopes	Rn	1020	825389	2v04n	oh153	1969	1:20000
Ravenna silt loam, 2 to 6 percent slopes	RaB	11920	287134	2v04q	oh155	1986	1:15840
Ravenna silt loam, 0 to 2 percent slopes	RaA	9425	287133	2v04m	oh155	1986	1:15840
Ravenna silt loam, 2 to 6 percent slopes	ReB	5	1589438	2v04q	oh157	1981	1:15840
Ravenna silt loam, 0 to 2 percent slopes	ReA	8639	287219	2v04m	oh169	1981	1:15840
Ravenna silt loam, 2 to 6 percent slopes	ReB	7622	287220	2v04q	oh169	1981	1:15840
Ravenna silt loam, 3 to 8 percent slopes	RaB	866	2900299	2v04s	pa007	1978	1:15840
Ravenna silt loam, 8 to 15 percent slopes	RaC	405	2900300	2v04t	pa007	1978	1:15840
Ravenna silt loam, 0 to 3 percent slopes	RaA	294	2900298	2v04p	pa007	1978	1:15840
Ravenna silt loam, 3 to 8 percent slopes	RaB	2703	1913131	2v04s	pa019	1984	1:15840
Ravenna silt loam, 0 to 3 percent slopes	RaA	213	1913130	2v04p	pa019	1984	1:15840
Ravenna silt loam, 8 to 15 percent slopes	RaC	177	1913132	2v04t	pa019	1984	1:15840
Ravenna channery silt loam, 3 to 8 percent slopes	RaB	811	539550	l3fv	pa037	1965	1:20000
Ravenna channery silt loam, 0 to 3 percent slopes	RaA	209	539549	l3ft	pa037	1965	1:20000
Ravenna silt loam, 3 to 8 percent slopes	RaB	33999	2900451	2v04s	pa073	1978	1:15840
Ravenna silt loam, 0 to 3 percent slopes	RaA	9146	2900450	2v04p	pa073	1978	1:15840
Ravenna silt loam, 8 to 15 percent slopes	RaC	7266	2900452	2v04t	pa073	1978	1:15840
Ravenna silt loam, 3 to 8 percent slopes	RaB2	123551	296250	2v04s	pa085	1967	1:20000
Ravenna silt loam, 0 to 3 percent slopes	RaA	29839	296249	2v04p	pa085	1967	1:20000
Ravenna silt loam, 8 to 15 percent slopes	RaC2	7942	296251	2v04t	pa085	1967	1:20000
Ravenna silt loam, 0 to 15 percent slopes, very stony	ReC	2424	296254	2v04x	pa085	1967	1:20000
Ravenna silt loam, 15 to 25 percent slopes, eroded	RaD2	664	296253	2v04v	pa085	1967	1:20000
Ravenna silt loam, 8 to 15 percent slopes, severely eroded	RaC3	338	296252	2v04w	pa085	1967	1:20000
Alvira and Ravenna silt loams, 0 to 8 percent slopes, extremely stony	ArB	6388	2377818	2v04y	pa121	1971	1:20000
Ravenna silt loam, 3 to 8 percent slopes	RaB	5049	538942	2v04s	pa121	1971	1:20000
Ravenna silt loam, 8 to 15 percent slopes	RaC	916	538943	2v04t	pa121	1971	1:20000
Ravenna silt loam, 0 to 3 percent slopes	RaA	845	538941	2v04p	pa121	1971	1:20000

Map of Series Extent

Approximate geographic distribution of the RAVENNA 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).