Soil Data Explorer - COLTHORP

Official Series Description

Lab Data Summary

Aggregate lab data for the COLTHORP soil series. This aggregation is based on all pedons with a current taxon name of COLTHORP, 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 COLTHORP 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 COLTHORP 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 COLTHORP 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 COLTHORP 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 COLTHORP 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.

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

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

Competing Series

Soil series competing with COLTHORP 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 COLTHORP 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 COLTHORP 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 flats position figure.

Soil series sharing subgroup-level classification with COLTHORP, 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 COLTHORP 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
Colthorp silt loam, 0 to 2 percent slopes	40	9331	2519014	2q9t	id001	2012	1:24000
Colthorp silt loam, 2 to 4 percent slopes	41	6755	2519015	2q9v	id001	2012	1:24000
Colthorp cobbly loam, 0 to 2 percent slopes	42	3171	2519016	2q9w	id001	2012	1:24000
Colthorp cobbly loam, 2 to 4 percent slopes	43	2441	2519017	2q9x	id001	2012	1:24000
Colthorp-Minveno complex, 1 to 8 percent slopes	4112	844	2519235	2prhx	id001	2012	1:24000
Colthorp-Kunaton complex, 0 to 8 percent slopes	33	61214	2519555	2r03	id685	2012	1:24000
Colthorp-Minveno silt loams, 0 to 8 percent slopes, stony	35	38922	2519557	2r05	id685	2012	1:24000
Colthorp stony silt loam, 0 to 8 percent slopes, very stony	31	19266	2519553	2r01	id685	2012	1:24000
Colthorp-Chilcott silt loams, 0 to 8 percent slopes	32	9456	2519554	2r02	id685	2012	1:24000
Colthorp-Kunaton-Rubble land complex, 8 to 20 percent slopes	34	8843	2519556	2r04	id685	2012	1:24000
Colthorp-Rock outcrop complex, 4 to 20 percent slopes	36	5966	2519558	2r06	id685	2012	1:24000
Colthorp cobbly silt loam, 1 to 4 percent slopes	29	40995	80232	2ph4	id704	1992	1:24000
Colthorp very cobbly silt loam, 1 to 15 percent slopes	30	9244	80234	2ph6	id704	1992	1:24000

Map of Series Extent

Approximate geographic distribution of the COLTHORP 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).