Soil Data Explorer - PENA

Official Series Description

Lab Data Summary

Aggregate lab data for the PENA soil series. This aggregation is based on all pedons with a current taxon name of PENA, 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 PENA were used in the calculation. Source: KSSL snapshot (updated 2020-03-13). Methods used to assemble the KSSL snapshot used by SoilWeb / SDE

There are insufficient data to create the lab data summary figure.

Water Balance

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

Soil series sharing subgroup-level classification with PENA, 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 PENA 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
Ascalon-Pena complex, 6 to 25 percent slopes	7	6300	496814	jnz8	co683	1977	1:24000
Hogadero-Pena association, moderately undulating	30	51914	375589	dlts	nm632	1981	1:63360
Pena-Hogadero association, hilly	59	21924	375620	dlvs	nm632	1981	1:63360
Pena-Dioxice complex, moderately sloping	58	3404	375619	dlvr	nm632	1981	1:63360
Pena-Irock association, strongly sloping	PA	6155	56674	1wz6	nm636	1970	1:31680
Hogadero-Pena association, moderately rolling	HGC	18982	375770	dm0m	nm644	1981	1:24000
Pena-Cale-Kerrick association, nearly level	PCB	36241	635681	pbgv	nm646	1976	1:24000
Pena-Aztec variant association, strongly sloping	PAE	9571	635680	pbgt	nm646	1976	1:24000
Pena variant-Rock outcrop association, steep	PDF	2139	635682	pbgw	nm646	1976	1:24000
Pena gravelly sandy loam, 2 to 15 percent slopes	246	6382	56240	1wj6	nm650	1989	1:24000
Goldust-Pena association, hilly	39	20539	56482	1ws0	nm660	1981	1:48000
Guy-Dioxice-Pena association, 1 to 8 percent slopes	510	51837	57129	1xfw	nm664	1984	1:24000
Cuevoland-Ancho association	CA	5079	55949	1w6t	nm666	1974	1:24000
Pena-Penasco association	PK	2486	55975	1w7n	nm666	1974	1:24000
Pena gravelly sandy loam, 2 to 15 percent slopes	PxC	475	2934614	2wl35	nm678		1:24000
Pena-Pachic Argiustolls-Riverwash complex, 0 to 20 percent slopes	64	2730	2440227	2mx80	nm688	2014	1:24000

Map of Series Extent

Approximate geographic distribution of the PENA 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).