Soil Data Explorer - FEWKES

Official Series Description

Lab Data Summary

Aggregate lab data for the FEWKES soil series. This aggregation is based on all pedons with a current taxon name of FEWKES, 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 FEWKES 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 FEWKES 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 FEWKES 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 FEWKES 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 FEWKES 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 FEWKES 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 FEWKES 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 FEWKES 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 FEWKES, 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 FEWKES 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
Doeknoll-Fewkes-Cloud Rim complex, 8 to 40 percent slopes	520	4824	2677831	2pw0l	ut013		1:24000
Heiners-Fewkes-Hades complex, 30 to 70 percent slopes	141	46496	508185	k1t2	ut613	1999	1:24000
Fewkes-Hades complex, 30 to 60 percent slopes	133	32589	508175	k1sr	ut613	1999	1:24000
Hades-Fewkes complex, 30 to 60 percent slopes	138	17497	508181	k1sy	ut613	1999	1:24000
Lucky Star-Fewkes gravelly loams, 30 to 60 percent slopes	153	10475	508194	k1tc	ut613	1999	1:24000
Fewkes gravelly loam, 15 to 30 percent slopes	130	8991	508178	k1sv	ut613	1999	1:24000
Heiners-Fewkes gravelly loams, 15 to 30 percent slopes	140	7025	508184	k1t1	ut613	1999	1:24000
Fewkes gravelly loam, 8 to 15 percent slopes	129	6448	508173	k1sp	ut613	1999	1:24000
Fewkes-Yeates Hollow complex, 15 to 30 percent slopes	135	6394	508172	k1sn	ut613	1999	1:24000
Fewkes-Hades complex, 15 to 30 percent slopes	132	5881	508176	k1ss	ut613	1999	1:24000
Fewkes-Yeates Hollow complex, 5 to 15 percent slopes	134	4004	508179	k1sw	ut613	1999	1:24000
Fewkes-Heiners gravelly loams, 30 to 70 percent slopes	131	2538	508177	k1st	ut613	1999	1:24000
Fewkes gravelly loam, 2 to 8 percent slopes	128	2433	508174	k1sq	ut613	1999	1:24000
Hades-Fewkes complex, 15 to 30 percent slopes	137	2303	508182	k1sz	ut613	1999	1:24000
Fewkes gravelly loam, 2 to 8 percent slopes	504	8452	1480225	1lp96	wy041		1:24000
Heiners-Fewkes gravelly loams, 15 to 30 percent slopes	510	3624	1480231	1lp9d	wy041		1:24000
Heiners-Fewkes-Hades complex, 30 to 70 percent slopes	511	2429	1480241	1lp9q	wy041		1:24000
Fewkes gravelly loam, 8 to 15 percent slopes	505	2106	1480236	1lp9k	wy041		1:24000
Fewkes gravelly loam 15 to 30 percent slopes	506	780	1480235	1lp9j	wy041		1:24000
Fewkes-Heiners gravelly loams, 30 to 70 percent slopes	507	66	1480234	1lp9h	wy041		1:24000

Map of Series Extent

Approximate geographic distribution of the FEWKES 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).