Soil Data Explorer - PEKIN

Official Series Description

Lab Data Summary

Aggregate lab data for the PEKIN soil series. This aggregation is based on all pedons with a current taxon name of PEKIN, 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 PEKIN 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
114B	DC7811	1978IN031011	Pekin	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.3208583,-85.2986056
114B	JF7922	1979IN077022	Pekin	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.7621944,-85.636375
114B	06N0337	S2005IN079005	Pekin	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.8183327,-85.769722
115A	PK8108	1981IN125008	Pekin	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.3266056,-87.2898778
120B	MT8109	2016IN101002	Pekin	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.572375,-86.7806333
120B	OR7708	2016IN117003	Pekin	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.4739139,-86.6709139
120C	MR7616	1976IN109016	Pekin	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.3511306,-86.4670639
120C	BR8111	1981IN013011	Pekin	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.0897333,-86.2481778
120C	WS7904	2016IN175002	Pekin	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.5102083,-85.9990694
121	SW8115	1981IN155015	Pekin	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.7400694,-85.0831
121	RI8004	2017IN137003	Pekin	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.972131,-85.157077
122	LW7808	2016IN093001	Pekin	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.9474833,-86.6095361
n/a	AB-100	1960-OH007-100	Pekin	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	AD-s09	1961-OH001-S09	Pekin	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 PEKIN 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 PEKIN 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 PEKIN 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 PEKIN 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 PEKIN 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 PEKIN 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 PEKIN 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 PEKIN, 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

No block diagrams are available.

Map Units

Map units containing PEKIN 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
Pekin silt loam, 2 to 6 percent slopes, eroded	PcrB2	1915	202297	2w566	in005	2002	1:12000
Bartle-Pekin silt loams, 2 to 6 percent slopes	BbiB	658	243894	85sk	in005	2002	1:12000
Pekin silt loam, 6 to 12 percent slopes, severely eroded	PcrC3	652	202298	6shr	in005	2002	1:12000
Pekin silt loam, 6 to 12 percent slopes, eroded	PcrC2	614	243896	85sm	in005	2002	1:12000
Pekin silt loam, 6 to 12 percent slopes, eroded	PeC2	2523	535597	2zs5d	in013	1985	1:15840
Pekin silt loam, 2 to 6 percent slopes	PeB	1606	535596	2zs5c	in013	1985	1:15840
Pekin silt loam, 6 to 12 percent slopes, eroded	PcrC2	22	1651383	1sfdf	in013	1985	1:15840
Bartle-Pekin silt loams, 2 to 6 percent slopes	BbiB	15	1651373	1sfd3	in013	1985	1:15840
Pekin silt loam, 2 to 6 percent slopes, eroded	PcrB2	4720	210710	7283	in019	2001	1:12000
Pekin silt loam, 6 to 12 percent slopes, eroded	PcrC2	771	185139	66n7	in019	2001	1:12000
Pekin silt loam, 6 to 12 percent slopes, severely eroded	PcrC3	380	185143	66nc	in019	2001	1:12000
Pekin silt loam, 2 to 6 percent slopes	PcrB	464	1652588	2zs5c	in025	1970	1:20000
Pekin silt loam, 2 to 6 percent slopes, rarely flooded	PeB	2939	535645	kzcw	in037	1978	1:15840
Pekin silt loam, 6 to 12 percent slopes, eroded, rarely flooded	PeC2	419	535646	kzcx	in037	1978	1:15840
Pekin silt loam, 2 to 6 percent slopes, eroded	PcrB2	990	185192	66py	in043	2000	1:12000
Pekin silt loam, 0 to 2 percent slopes	PcrA	281	185190	2zs55	in043	2000	1:12000
Pekin silt loam, 2 to 6 percent slopes, eroded	PdB2	2042	161565	2w566	in055	1984	1:15840
Pekin silt loam, 0 to 2 percent slopes	PcrA	500	1676224	2zs55	in061	2007	1:12000
Pekin silt loam, 2 to 6 percent slopes, eroded	PcrB2	377	1676225	1t87s	in061	2007	1:12000
Pekin silt loam, 2 to 6 percent slopes, eroded	PcrB2	827	1907094	220h5	in071	1985	1:15840
Pekin silt loam, 6 to 12 percent slopes, eroded	PcrC2	6	620325	nthh	in071	1985	1:15840
Pekin silt loam, 6 to 12 percent slopes, severely eroded	PcrC3	3	2027081	261bq	in071	1985	1:15840
Pekin silt loam, 1 to 4 percent slopes, rarely flooded	PkB	913	964671	11ctf	in077	1982	1:15840
Pekin silt loam, 0 to 2 percent slopes	PkA	6	975662	11r7z	in077	1982	1:15840
Pekin silt loam, 2 to 6 percent slopes, eroded	PcrB2	2068	633219	2w566	in079	2010	1:12000
Pekin silt loam, 6 to 12 percent slopes, eroded	PcrC2	963	633220	p7xg	in079	2010	1:12000
Pekin silt loam, 0 to 2 percent slopes	PcrA	47	633218	p7xd	in079	2010	1:12000
Pekin silt loam, 2 to 6 percent slopes	PcrB	1224	1651501	2zs5c	in093	1982	1:15840
Pekin silt loam, 6 to 12 percent slopes, eroded	PcrC2	893	1651502	2zs5d	in093	1982	1:15840
Pekin silt loam, 2 to 6 percent slopes	PcrB	807	1708156	2zs5c	in101	1984	1:15840
Pekin silt loam, 6 to 12 percent slopes, eroded	PcrC2	8	1708157	2zs5d	in101	1984	1:15840
Pekin silt loam, 2 to 6 percent slopes	PeB	1378	535555	2zs5c	in105	1979	1:15840
Pekin silt loam, 6 to 12 percent slopes	PeC	820	535556	kz90	in105	1979	1:15840
Pekin silt loam, 0 to 2 percent slopes	PeA	452	535554	2zs55	in105	1979	1:15840
Pekin silt loam, 2 to 6 percent slopes	PnB	384	163240	5gvt	in109	1979	1:15840
Pekin silt loam, 2 to 6 percent slopes	PcrB	881	1442993	2zs5c	in117	1980	1:15840
Pekin silt loam, 6 to 12 percent slopes, eroded	PcrC2	465	1442994	2zs5d	in117	1980	1:15840
Wirt-Pekin silt loams, 0 to 6 percent slopes, frequently flooded, very long duration	WpyBJ	755	166378	5l41	in119	1997	1:12000
Pekin silt loam, 0 to 2 percent slopes, rarely flooded	PcrAQ	178	166225	5kz3	in119	1997	1:12000
Pekin silt loam, 6 to 12 percent slopes, eroded	PcrC2	41	166227	5kz5	in119	1997	1:12000
Pekin silt loam, 2 to 6 percent slopes, eroded	PcrB2	39	166226	5kz4	in119	1997	1:12000
Pekin silt loam, 2 to 6 percent slopes	PcB	904	161928	5fhh	in125	1983	1:15840
Pekin silt loam, 2 to 6 percent slopes, eroded, rarely flooded	PeB2	460	159903	5cd5	in129	1978	1:15840
Pekin silt loam, 0 to 2 percent slopes, rarely flooded	PeA	363	159902	5cd4	in129	1978	1:15840
Pekin silt loam, 2 to 6 percent slopes, eroded	PeB2	1360	1479643	1lnpf	in137	1982	1:15840
Pekin silt loam, 2 to 6 percent slopes, eroded	PcrB2	2306	165739	2w566	in143	1995	1:12000
Pekin silt loam, 6 to 12 percent slopes, severely eroded	PcrC3	719	165741	5kgh	in143	1995	1:12000
Pekin silt loam, 6 to 12 percent slopes, eroded	PcrC2	313	165740	5kgg	in143	1995	1:12000
Pekin silt loam, 0 to 2 percent slopes	PcrA	182	165738	5kgd	in143	1995	1:12000
Pekin silt loam, 2 to 6 percent slopes, eroded	PeB2	595	160041	5cjm	in147	1966	1:15840
Pekin silt loam, 0 to 2 percent slopes	PeA	246	160040	2zs55	in147	1966	1:15840
Pekin silt loam, rarely flooded, 1 to 4 percent slopes	PkB	366	535284	kz07	in155	1984	1:15840
Pekin silt loam, 1 to 4 percent slopes, eroded	PeB2	343	159973	5cgf	in173	1976	1:15840
Pekin silt loam, 2 to 6 percent slopes	PeB	5127	535499	2zs5c	in175	1984	1:15840
Pekin silt loam, 6 to 12 percent slopes, eroded	PeC2	894	535500	2zs5d	in175	1984	1:15840
Pekin silt loam, 0 to 2 percent slopes	PeA	499	535498	2zs55	in175	1984	1:15840
Pekin silt loam, 2 to 6 percent slopes	PeB	231	549610	2zs5c	ky607	1992	1:20000
Pekin silt loam, 0 to 2 percent slopes	PeA	136	549609	2zs55	ky607	1992	1:20000
Pekin silt loam, cobbly variant, 0 to 3 percent slopes	PkA	399	539547	l3fr	pa037	1965	1:20000
Pekin silt loam, cobbly variant, 3 to 8 percent slopes, moderately eroded	PkB2	256	539548	l3fs	pa037	1965	1:20000

Map of Series Extent

Approximate geographic distribution of the PEKIN 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).