Soil Data Explorer - PARR

Official Series Description

Lab Data Summary

Aggregate lab data for the PARR soil series. This aggregation is based on all pedons with a current taxon name of PARR, 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 PARR were used in the calculation. Source: KSSL snapshot (updated 2020-03-13). 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
108A	78IL103015	1978IL103015	Parr	1	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	41.6418042,-89.3989564
108A	78IL103019	1978IL103019	Parr	1	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	41.6551125,-89.3901006
108A	83P0554	83IL011067	Parr	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	41.3933334,-89.6600037
110	76IL019024	1976IL019024	Parr	1	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.3272373,-87.9837028
111C	JR7922	1979IN073022	Parr	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.9689472,-87.1703944
111C	JR8028	1980IN073028	Parr	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.9689472,-87.16945
111D	MY8001	1980IN107001	Parr	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.2113389,-86.8787389
111D	82P0840	S1982IN107003	Parr	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.211113,-86.8731003
111D	82P0841	S1982IN107004	Parr	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.2109756,-86.8731003
n/a	WA-017	1958-OH165-017	Parr	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	WA-019	1958-OH165-019	Parr	3	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 PARR 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 PARR series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot (updated 2024-02-21), parsed OSD records (updated 2023-10-02) and snapshot of SC database (updated 2023-10-02).

Select annual climate data summaries for the PARR 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 PARR 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 PARR share the same family level classification in Soil Taxonomy. Source: parsed OSD records (updated 2023-10-02) and snapshot of the SC database (updated 2023-10-02).

Select annual climate data summaries for the PARR 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 PARR 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 flats position figure.

Soil series sharing subgroup-level classification with PARR, 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-2010-09-01-58 | McLean County - 1998

   Typical pattern of soils and parent material in the Parr-Lisbon-Drummer association (Soil Survey of McLean County, Illinois; 1998).

2. IL-2011-08-03-01 | Bureau County - 1992

   Typical pattern of soils and parent material in the Saybrook-Parr-La Rose association (Soil Survey of Bureau County, Illinois; 1992).

3. IL-2011-08-04-06 | De Witt County - 1991

   Typical pattern of soils and parent material in the Catlin-Dana association (Soil Survey of De Witt County, Illinois; 1991).

4. IL-2011-08-04-56 | Macon County - 1990

   Typical landscape pattern of soils and parent materials in the Catlin-Dana-Parr association (Soil Survey of Macon County, Illinois; 1990).

5. IN-2012-01-19-42 | Pulaski County - January 1968

   Prairie soils that formed in loam till and adjoining soils that formed in outwash and lacustrine deposits (Soil Survey of Pulaski County, Indiana; 1968).

Map Units

Map units containing PARR 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
Parr silt loam, 2 to 5 percent slopes	221B	6734	199793	6pwy	il007	2006	1:12000
Parr silt loam, 5 to 10 percent slopes, eroded	221C2	1239	1395360	1htzm	il007	2006	1:12000
Parr silt loam, 5 to 10 percent slopes, eroded	221C2	8073	183914	65cq	il037	1998	1:12000
Parr silt loam, 2 to 5 percent slopes, eroded	221B2	7256	183913	65cp	il037	1998	1:12000
Parr clay loam, 5 to 10 percent slopes, severely eroded	221C3	461	198363	6ndt	il053	2001	1:12000
Parr silt loam, 5 to 10 percent slopes, eroded	221C2	163	198379	6nfb	il053	2001	1:12000
Parr silt loam, 2 to 5 percent slopes	221B	473	271466	93gz	il089	2000	1:12000
Parr silt loam, 5 to 10 percent slopes, eroded	221C2	258	271306	939t	il089	2000	1:12000
Parr silt loam, 2 to 5 percent slopes, eroded	221B2	37	271307	939v	il089	2000	1:12000
Parr silt loam, 5 to 10 percent slopes, eroded	221C2	76	1145146	17fm6	il103	2004	1:12000
Parr silt loam, 2 to 5 percent slopes, eroded	221B2	27	1145145	17fm5	il103	2004	1:12000
Parr silt loam, 2 to 5 percent slopes	221B	5047	182493	63ww	il111	1997	1:12000
Parr silt loam, 5 to 10 percent slopes, eroded	221C2	1016	182494	63wx	il111	1997	1:12000
Parr silt loam, 5 to 10 percent slopes, eroded	221C2	4079	179007	608f	il173	1990	1:15840
Parr silt loam, 2 to 5 percent slopes, eroded	221B2	2909	179006	608d	il173	1990	1:15840
Parr silt loam, 2 to 5 percent slopes, eroded	221B2	2684	1613218	1r4p9	il183	2006	1:12000
Parr clay loam, 5 to 10 percent slopes, severely eroded	221C3	268	1612770	1r46v	il183	2006	1:12000
Parr silt loam, 1 to 5 percent slopes	PgB	745	162348	5fy1	in023	1978	1:20000
Parr fine sandy loam, 2 to 6 percent slopes	PaB	2345	161378	5dxr	in073	1985	1:15840
Parr-Ayr complex, 2 to 6 percent slopes	PdB	2006	161379	5dxs	in073	1985	1:15840
Parr loam, 0 to 2 percent slopes	PrA	2329	272624	94pb	in087	1978	1:20000
Parr silt loam, 2 to 6 percent slopes	PfB	1084	163048	5gnm	in107	1984	1:15840
Parr loam, 0 to 2 percent slopes	PdA	880	272565	94mf	in113	1974	1:15840
Parr silt loam, 1 to 4 percent slopes	PbB	28	1413814	1jg5x	oh021	1966	1:15840
Parr silt loam, 1 to 4 percent slopes	PaB	926	171153	5r32	oh091	1977	1:15840

Map of Series Extent

Approximate geographic distribution of the PARR 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).