Soil Data Explorer - FORSEY

Official Series Description

Lab Data Summary

Aggregate lab data for the FORSEY soil series. This aggregation is based on all pedons with a current taxon name of FORSEY, 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 FORSEY were used in the calculation. Source: KSSL snapshot (updated 2020-03-13). 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 FORSEY 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 FORSEY 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 FORSEY 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 FORSEY 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).

Competing Series

Soil series competing with FORSEY 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 FORSEY 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 FORSEY 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 terrace figure.

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

Soil series sharing subgroup-level classification with FORSEY, 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 FORSEY 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
Forsey cobbly loam, 25 to 65 percent slopes	AG47	40	1415085	1jhhx	co654		1:24000
Forsey cobbly loam, 3 to 12 percent slopes	AG45	28	1415083	1jhhv	co654		1:24000
Forsey cobbly loam, 12 to 25 percent slopes	AG46	25	1415084	1jhhw	co654		1:24000
Forsey cobbly loam, 25 to 65 percent slopes	47	12641	497988	jq64	co655	1984	1:24000
Forsey cobbly loam, 12 to 25 percent slopes	46	7175	497987	jq63	co655	1984	1:24000
Forsey cobbly loam, 3 to 12 percent slopes	45	1543	497986	jq62	co655	1984	1:24000
Forsey-Libeg complex, 3 to 25 percent slopes, very stony	83	6621	497263	jpfr	co686	1992	1:31680
Davtone-Forsey complex, 12 to 35 percent slopes, very stony	53	2488	497230	jpdp	co686	1992	1:31680
Davtone-Forsey complex, 12 to 35 percent slopes, very stony	15	140	506211	jzrd	co692	1998	1:24000
Namon-Forsey families, association, 35 to 75 percent slopes	177		625252	nzmf	ut649		1:24000
Woodhurst-Forsey families, association, 20 to 70 percent slopes	215		625267	nzmx	ut649		1:24000
Van Wagoner family-Forsey family, stony-Rock outcrop complex, 40 to 70 percent slopes	211		625271	nzn1	ut649		1:24000
Forsey-Forsey, moderately deep-Agassiz families, association, 30 to 70 percent slopes	155		581651	mj7y	ut649		1:24000
Agassiz-Forsey families-Rock outcrop complex, 30 to 70 percent slopes	102		625183	nzk6	ut649		1:24000
Genoa-Irigul, stony-Forsey families, association, 30 to 70 percent slopes	160		625227	nzlm	ut649		1:24000
Forsey-Woodhurst-Namon families, association, 25 to 65 percent slopes	158		625229	nzlp	ut649		1:24000
Forsey-Red Butte families, complex, 15 to 30 percent slopes	157		625230	nzlq	ut649		1:24000
Forsey family-Genoa family-Rock outcrop complex, 30 to 70 percent slopes	156		625231	nzlr	ut649		1:24000
Passar family-Forsey family-Namon family, stony complex, 30 to 70 percent slopes	179		625250	nzmc	ut649		1:24000
Namon-Forsey families, association, 35 to 75 percent slopes, cool	178		625251	nzmd	ut649		1:24000

Map of Series Extent

Approximate geographic distribution of the FORSEY 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).