Soil Data Explorer - REPP

Official Series Description

Lab Data Summary

Aggregate lab data for the REPP soil series. This aggregation is based on all pedons with a current taxon name of REPP, 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 REPP were used in the calculation. Source: KSSL snapshot (updated 2020-03-18). 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 REPP 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 REPP 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 REPP 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 REPP 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 flats position figure.

Competing Series

Soil series competing with REPP 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 REPP 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 REPP 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 REPP, 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 REPP 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
Repp-Kingspoint-Rock outcrop complex, 40 to 80 percent slopes	931G	165	2409892	2lwpg	mt617	1958	1:20000
Repp-Kingspoint-Rock outcrop complex, 40 to 80 percent slopes	931G	1541	1452500	1krfv	mt618	2008	1:24000
Repp-Kingspoint-Rock outcrop complex, 40 to 80 percent slopes	931G	75	2409960	2lwrn	mt619	1988	1:24000
Repp, cool-Rock outcrop complex, 30 to 60 percent slopes	139	7846	145030	4vxd	mt629	1991	1:20000
Repp gravelly loam, 30 to 60 percent slopes	138	2542	145028	4vxb	mt629	1991	1:20000
Repp-Kingspoint-Rock outcrop complex, 40 to 80 percent slopes	931G	72	2409916	2lwq7	mt629	1991	1:20000
Whitecow-Windham-Repp families, complex, high relief mountain slopes and ridges	71CAF	1938	149477	50jv	mt635	2006	1:24000
Whitecow-Windham-Repp families, complex, high relief mountain slopes and ridges	262	384	1703442	1v5kr	mt636	1983	1:24000
Repp very gravelly loam, cool, 30 to 60 percent slopes	91	23543	145514	4wf0	mt638	1985	1:24000
Repp very gravelly loam, 30 to 60 percent slopes	89	20210	145511	4wdx	mt638	1985	1:24000
Repp very gravelly loam, cool, 8 to 30 percent slopes	90	3839	145513	4wdz	mt638	1985	1:24000
Whitore gravelly clay loam, 30 to 60 percent slopes	123	3245	145413	4w9r	mt638	1985	1:24000
Repp-Rock outcrop complex, 50 to 80 percent slopes	92	1697	145515	4wf1	mt638	1985	1:24000
Repp gravelly loam, cool, 35 to 60 percent slopes	26F	1932	155946	578j	mt651	1997	1:24000
Repp gravelly loam, 35 to 60 percent slopes	24F	795	155923	577s	mt651	1997	1:24000
Repp-Rock outcrop complex, 40 to 70 percent slopes	126G	128	155811	5745	mt651	1997	1:24000
Repp gravelly loam, 15 to 35 percent slopes	24E	120	155921	577q	mt651	1997	1:24000
Minnimaud-Repp families complex, 5 to 30 percent slopes	24	19666	3312847	30gvq	ut645		1:24000
Repp-Doney-Minnimaud families complex, 10 to 40 percent slopes	24S	4031	3312848	30gvr	ut645		1:24000

Map of Series Extent

Approximate geographic distribution of the REPP 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).