Soil Data Explorer - HERD

Official Series Description

Lab Data Summary

Aggregate lab data for the HERD soil series. This aggregation is based on all pedons with a current taxon name of HERD, 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 HERD 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	71C0030	S1971UT029005	Herd	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	41.2350006,-111.5566635
47	71C0029	S1971UT057003	Herd	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	41.3675003,-111.7386093

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the HERD 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 HERD 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 HERD 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 HERD 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 HERD 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 HERD 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 HERD 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 HERD, 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 HERD 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
Herd-Frisco families complex, sandstone substratum, 5 to 40 percent slopes	7503B	15529	762990	tlyl	co645		1:24000
Mikesell-Herd-Frisco families, complex, 20 to 60 percent slopes	375	51	2984239	535z	id713		1:24000
Herd-Yence complex, 3 to 15 percent slopes	HtC	12655	506561	k03p	ut609	1974	1:24000
Herd cobbly clay loam, 3 to 15 percent slopes	HrC	2795	506560	k03n	ut609	1974	1:24000
Richens-Herd complex, 3 to 15 percent slopes	69	901	55392	1vmv	ut633	1983	1:24000
Herd-Cluff families, association, 2 to 15 percent slopes, dry	166		625221	nzlf	ut649		1:24000
Herd-Cluff families, association, 2 to 35 percent slopes	165		625222	nzlg	ut649		1:24000
Mikesell-Herd-Frisco families, complex, 20 to 60 percent slopes	375	7	3083460	535z	wy623	1971	1:20000
Tigeron, stony-Herd-Stringam families, complex, 15 to 50 percent slopes	244	17520	151974	534d	wy663	2012	1:24000
Inceptic Haplocryalfs-Vandamore family-Herd family, complex, 20 to 60 percent slopes	314	9371	151998	5355	wy663	2012	1:24000
Mikesell-Herd-Frisco families, complex, 20 to 60 percent slopes	375	8541	152023	535z	wy663	2012	1:24000
Herd family-Vertic Haplocryalfs-Eutric Haplocryalfs complex, 10 to 50 percent slopes -- draft	304	2035	151992	534z	wy663	2012	1:24000
Herd family-Vertic Haplocryalfs-Eutric Haplocryalfs complex, 10 to 50 percent slopes -- draft	304	1072	2611984	534z	wy723		1:24000
Inceptic Haplocryalfs-Vandamore family-Herd family, complex, 20 to 60 percent slopes	314	0	2925209	5355	wy723		1:24000

Map of Series Extent

Approximate geographic distribution of the HERD 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).