Soil Data Explorer - LEHMANS

Official Series Description

Lab Data Summary

Aggregate lab data for the LEHMANS soil series. This aggregation is based on all pedons with a current taxon name of LEHMANS, 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 LEHMANS 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
40	69C0205	S1969AZ019004	Lehmans	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	32.1769447,-111.0336075
41	74C0174	S1974AZ019003	LEHMANS	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	32.1888885,-110.7249985

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the LEHMANS 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 LEHMANS 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 LEHMANS 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 LEHMANS 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 LEHMANS 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 LEHMANS 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).

There are insufficient data to create the annual climate figure.

Geomorphic description summaries for the LEHMANS 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 2D hillslope position figure.

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

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 LEHMANS, 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. AZ-2011-05-27-01 | Aguila-Carefree Area, Parts of Maricopa and Pinal Counties - 1986

   Idealized soil-landscape profile (Soil Survey of Aguila-Carefree Area, Parts of Maricopa and Pinal Counties, Arizona; 1986).

2. NM-2012-02-14-05 | Hidalgo County - December 1973

   Diagram showing relationship of several soil associations and the topography in Hidalgo County (Soil Survey of Hidalgo County, New Mexico; December 1973).

Map Units

Map units containing LEHMANS 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
Lehmans gravelly clay loam, 8 to 45 percent slopes	Le	20644	52867	1s0d	az637	1968	1:31680
Lehmans extremely rocky clay loam, 8 to 60 percent slopes	Lh	15846	52868	1s0f	az637	1968	1:31680
Lehmans-Rock outcrop complex, low precipitation, 8 to 65 percent slopes	73	39550	53127	1s8s	az645	1982	1:24000
Lehmans-Rock outcrop complex, 8 to 65 percent slopes	72	36610	53126	1s8r	az645	1982	1:24000
Rock outcrop-Lehmans complex, 15 to 65 percent slopes	104	7547	52962	1s3g	az645	1982	1:24000
Rock outcrop-Lehmans complex, low precipitation, 15 to 65 percent slopes	105	4202	52963	1s3h	az645	1982	1:24000
Lehmans-Rock outcrop complex, 8 to 50 percent slopes	61	8813	1612779	1r474	az661	2009	1:24000
Akela-Lehmans-Rock outcrop complex, 9 to 60 percent slopes	1	15440	54431	1tmv	az663	1979	1:24000
Cellar-Lehmans complex, 5 to 25 percent slopes	13	8217	53745	1sxq	az669	1993	1:24000
Lehmans-Delthorny-Lajitas complex, 15 to 50 percent slopes	41	7801	53830	1t0g	az669	1993	1:24000
Lehmans extremely rocky loam, 10 to 25 percent slopes	LH	212639	57029	1xbn	nm023	1967	1:31680
Rock land	RL	113421	57047	1xc7	nm023	1967	1:31680
Lehmans-Nickel association, 1 to 9 percent slopes	LN	42694	57030	1xbp	nm023	1967	1:31680
Lehmans extremely rocky loam, 10 to 25 percent slopes	LK	78314	56040	1w9r	nm029	1967	1:24000
Lehmans very rocky loam, 0 to 10 percent slopes	LD	64477	56039	1w9q	nm029	1967	1:24000
Lehmans-Luzena association, very steep	50	11091	56533	1wtn	nm660	1981	1:48000
Lehmans-Lithic Haplargids complex, 5 to 15 percent slopes	23	16601	59290	2spsr	nm662	1979	1:48000
Tres Hermanos-Lehmans association, 1 to 15 percent slopes	71	11262	59343	1zr9	nm662	1979	1:48000

Map of Series Extent

Approximate geographic distribution of the LEHMANS 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).