Soil Data Explorer - PRESA

Official Series Description

Lab Data Summary

Aggregate lab data for the PRESA soil series. This aggregation is based on all pedons with a current taxon name of PRESA, 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 PRESA 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
47	13N57559	S2012UT043001	Presa	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.6750389,-111.2176944

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the PRESA 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 PRESA 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 PRESA 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 PRESA 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 PRESA 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 PRESA 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 PRESA 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 terrace figure.

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

Soil series sharing subgroup-level classification with PRESA, 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 PRESA 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
Presa cobbly loam, 15 to 40 percent slopes	PrF	13281	507872	k1gz	nm670	1976	1:24000
Presa cobbly loam, 40 to 80 percent slopes	PrG	11227	507873	k1h0	nm670	1976	1:24000
Presa-Cryaquolls association, steep	PYF	8627	507865	k1gr	nm670	1976	1:24000
Presa-Rock outcrop complex, very steep	PSG	7553	507864	k1gq	nm670	1976	1:24000
Presa cobbly loam, 0 to 15 percent slopes	PrD	1612	507871	k1gy	nm670	1976	1:24000
Owlcreek-Presa families association, eroded, 0 to 15 percent slopes	133	9179	2770049	2sdll	nm672		1:24000
Owlcreek-Presa families complex, dry, 15 to 40 percent slopes	321	8273	2770094	2sdn1	nm672		1:24000
Washboard-Presa families complex, 0 to 40 percent slopes	183	5309	2770076	2sdmg	nm672		1:24000
Owlcreek-Presa families complex, 15 to 40 percent slopes	127	4970	2770045	2sdlg	nm672		1:24000
Owlcreek-Presa families complex, eroded, 0 to 15 percent slopes	131	4317	2770047	2sdlj	nm672		1:24000
Presa-Leighcan families complex, dry, 0 to 15 percent slopes	471	3737	2770107	2sw5h	nm672		1:24000
Presa family, 15 to 40 percent slopes	224	16275	2934293	2wgkj	nm678		1:24000
Presa, moist, stony-Spinney-Cujob families association, 0 to 40 percent slopes	234	9385	2934298	2wgkp	nm678		1:24000
Presa family, moist, 15 to 40 percent slopes	261	9245	2934305	2wgkx	nm678		1:24000
Presa family, dry, 15 to 40 percent slopes	230	3781	2934297	2wgkn	nm678		1:24000
Presa family, moist, 30 to 80 percent slopes	262	3617	2934306	2wgky	nm678		1:24000
Presa-Garlet-Owlcreek families, complex, 20 to 50 percent slopes	295		3302917	596h	wy629		1:24000
Presa family-Agneston complex, 0 to 10 percent slopes	80	5963	708364	rs3g	wy632		1:24000
Ansel-Presa family complex, 0 to 10 percent slopes	67	3715	708352	rs32	wy632		1:24000
Ansel-Presa family complex, 10 to 25 percent slopes	68	3551	708351	rs31	wy632		1:24000
Presa family-Ansel complex, 25 to 40 percent slopes	81	1027	708363	rs3f	wy632		1:24000
Presa-Owlcreek families, complex, 15 to 40 percent slopes	169	12030	157739	594c	wy647		1:24000
Presa-Garlet-Owlcreek families, complex, 20 to 50 percent slopes	604	4009	1857229	20blm	wy647		1:24000
Garlet-Presa-Owlcreek families, complex, 15 to 40 percent slopes	605	40	1857237	20blw	wy647		1:24000
Garlet-Presa-Leavitt families, complex, 15 to 40 percent slopes	190	11	157742	594g	wy647		1:24000
Presa-Garlet-Owlcreek families, complex, 20 to 50 percent slopes	295	39811	157805	596h	wy656	2008	1:24000
Garlet-Presa families, complex, 15 to 40 percent slopes	121	10009	157848	597w	wy656	2008	1:24000
Owlcreek-Presa families, complex, 15 to 30 percent slopes	276	7989	157864	598d	wy656	2008	1:24000
Garlet-Presa-Leavitt families, complex, 15 to 40 percent slopes	298	6949	157868	598j	wy656	2008	1:24000
Quazar-Owlcreek-Presa families, complex, 5 to 25 percent slopes	135	6511	157856	5984	wy656	2008	1:24000
Owlcreek-Presa-Garlet families, complex, 15 to 25 percent slopes	126	5886	157852	5980	wy656	2008	1:24000
Presa-Owlcreek families, complex, 15 to 40 percent slopes	262	5872	157772	595f	wy656	2008	1:24000
Owlcreek-Presa-Quazar families, complex, 5 to 20 percent slopes	249	3663	157808	596l	wy656	2008	1:24000
Garlet-Presa-Owlcreek families, complex, 15 to 40 percent slopes	297	2424	157896	599f	wy656	2008	1:24000
Kamack-Sawpit-Presa families, complex, 20 to 50 percent slopes	293	2218	157804	596g	wy656	2008	1:24000
Garlet-Presa-Quazar families, complex, 5 to 35 percent slopes	252	1159	157803	596f	wy656	2008	1:24000

Map of Series Extent

Approximate geographic distribution of the PRESA 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).