Soil Data Explorer - HORSEHEAD

Official Series Description

Lab Data Summary

Aggregate lab data for the HORSEHEAD soil series. This aggregation is based on all pedons with a current taxon name of HORSEHEAD, 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 HORSEHEAD 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
94A	94P0553	S1993MI119002	Horsehead	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	44.9880562,-84.2222214

Water Balance

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

There are insufficient data to create the annual climate figure.

Geomorphic description summaries for the HORSEHEAD 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 HORSEHEAD, 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. MI-2010-09-07-23 | Montmorency County - 2003

   Typical pattern of soils and underlying material in the Rubicon-Grayling-Tawas and Millersburg-Klacking-Horsehead associations (Soil Survey of Montmorency County, Michigan; 2003).

Map Units

Map units containing HORSEHEAD 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
Horsehead-Graycalm sands, 0 to 6 percent slopes	390B	4596	192279	6g2k	mi119	1997	1:12000
Horsehead sand, 0 to 6 percent slopes	391B	4511	192283	6g2p	mi119	1997	1:12000
Horsehead-Graycalm sands, 6 to 18 percent slopes	390D	4272	192280	6g2l	mi119	1997	1:12000
Horsehead-Graycalm sands. 18 to 35 percent slopes	390E	2955	192281	6g2m	mi119	1997	1:12000
Horsehead-Graycalm sands, 35 to 70 percent slopes	390F	1680	192282	6g2n	mi119	1997	1:12000
Horsehead sand, 6 to 18 percent slopes	391D	1285	192284	6g2q	mi119	1997	1:12000
Horsehead gravelly sand, 6 to 18 percent slopes	389D	995	192276	6g2g	mi119	1997	1:12000
Horsehead gravelly sand, 18 to 35 percent slopes	389E	480	192277	6g2h	mi119	1997	1:12000
Horsehead gravelly sand, 0 to 6 percent slopes	389B	406	192275	6g2f	mi119	1997	1:12000
Horsehead-Graycalm sands, 0 to 6 percent slopes	390B	2726	209046	70jf	mi135	2003	1:12000
Coppler-Horsehead sands, 0 to 6 percent slopes	504B	2015	209078	70kg	mi135	2003	1:12000
Bamfield, sandy substratum-Millersburg-Horsehead complex, 6 to 18 percent slopes	503D	1731	209072	70k8	mi135	2003	1:12000
Horsehead-Graycalm sands, 6 to 18 percent slopes	390D	1300	209047	70jg	mi135	2003	1:12000
Ossineke-Millersburg-Horsehead complex, 0 to 6 percent slopes	505B	764	209085	70kp	mi135	2003	1:12000
Horsehead-Graycalm sands, 18 to 35 percent slopes	390E	686	209048	70jh	mi135	2003	1:12000
Bamfield, sandy substratum-Millersburg-Horsehead complex, 18 to 35 percent slopes	503E	512	209076	70kd	mi135	2003	1:12000
Coppler-Horsehead sands, 6 to 18 percent slopes	504D	463	209079	70kh	mi135	2003	1:12000
Ossineke-Millersburg-Horsehead complex, 6 to 12 percent slopes	505C	462	209075	70kc	mi135	2003	1:12000
Horsehead-Graycalm sands, 35 to 70 percent slopes	390F	286	209049	70jj	mi135	2003	1:12000
Coppler-Horsehead sands, 18 to 35 percent slopes	504E	133	209083	70km	mi135	2003	1:12000
Horsehead sand, 0 to 6 percent slopes	391B	15	241416	836m	mi135	2003	1:12000

Map of Series Extent

Approximate geographic distribution of the HORSEHEAD 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).