Soil Data Explorer - PIVOT

Official Series Description

Lab Data Summary

Aggregate lab data for the PIVOT soil series. This aggregation is based on all pedons with a current taxon name of PIVOT, 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 PIVOT 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
65	81P0116	80NE149013	Pivot	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	42.6544456,-99.5205536
66	40A2158	S1976NE089002	Pivot	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	42.4499893,-98.5712204

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the PIVOT 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 PIVOT 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 PIVOT 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 PIVOT 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 PIVOT 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 PIVOT 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 PIVOT 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 PIVOT, 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. NE-2012-02-13-31 | Holt County - March 1983

   Typical pattern of soils in the Dunday-Pivot-Dunn association and their relationship to topography and parent material (Soil Survey of Holt County, Nebraska; March 1983).

2. NE-2012-02-13-81 | Rock County - May 1985

   Typical pattern of soils and parent material in the Pivot-Valentine association (Soil Survey of Rock County, Nebraska; May 1985).

Map Units

Map units containing PIVOT 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
Brunswick-Pivot complex, 11 to 30 percent slopes	6665	34	2218540	2dgkt	ne003	1975	1:20000
Valentine-Pivot complex, 0 to 9 percent slopes	4868	4091	100039	3c32	ne017	1987	1:20000
Pivot loamy sand, 0 to 3 percent slopes	4721	3069	100020	2wgf5	ne017	1987	1:20000
Oneill and Pivot loams, 0 to 2 percent slopes	3110	161	2228196	2dsm9	ne019	1967	1:20000
Pivot loamy fine sand, 0 to 3 percent slopes	4720	249	100424	3chh	ne031	1995	1:24000
Oneill and Pivot loams, 0 to 2 percent slopes	3110	10962	1700164	1v250	ne079	2003	1:12000
Boelus, Oneill, and Pivot complex, 0 to 3 percent slopes	6645	1896	1700102	1v230	ne079	2003	1:12000
Pivot loamy sand, 0 to 3 percent slopes	4721	48946	100151	2wgf5	ne089	1981	1:20000
Brunswick-Pivot complex, 11 to 30 percent slopes	6665	15997	100087	3c4m	ne089	1981	1:20000
Pivot loamy sand, 3 to 9 percent slopes	4722	10067	100152	3c6q	ne089	1981	1:20000
Pivot-Valentine complex, 0 to 9 percent slopes	4723	9	2219625	2dhpt	ne089	1981	1:20000
Oneill and Pivot loams, 0 to 2 percent slopes	3110	1327	2228251	2dsp2	ne121	1978	1:20000
Pivot loamy sand, 0 to 3 percent slopes	4721	18726	100252	2wgf5	ne149	1982	1:20000
Pivot-Valentine complex, 0 to 9 percent slopes	4723	8894	100253	3c9z	ne149	1982	1:20000
Valentine-Pivot complex, 0 to 9 percent slopes	4868	44	2219841	2dhxs	ne149	1982	1:20000
Pivot loamy sand, 0 to 3 percent slopes	4721	904	2605681	2qgpr	ne171	1963	1:24000

Map of Series Extent

Approximate geographic distribution of the PIVOT 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).