Soil Data Explorer - LEDGEFORK

Official Series Description

Lab Data Summary

Aggregate lab data for the LEDGEFORK soil series. This aggregation is based on all pedons with a current taxon name of LEDGEFORK, 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 LEDGEFORK 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 LEDGEFORK 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 LEDGEFORK 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 LEDGEFORK 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 LEDGEFORK 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 LEDGEFORK 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 LEDGEFORK 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 LEDGEFORK 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 LEDGEFORK, 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 LEDGEFORK 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
Ledgefork family, 10 to 35 percent slopes, extremely stony surface	806	168	2663434	2rq53	id713		1:24000
Como-Wander-Ledgefork families, complex, valley trough walls	228X	1458	148558	4zl6	mt605	2007	1:24000
Ledgefork-Dunkleber-Wichup, rarely flooded families, complex, ice-margin slopes	468G	1433	149336	50d9	mt605	2007	1:24000
Kamack-Ledgefork-Wander families, complex, valley trough walls	227C	745	149337	50db	mt605	2007	1:24000
Marcetta-Ledgefork-Ledgefork, moderately deep, families, complex, steep mountain slopes	541C	566	149198	507v	mt605	2007	1:24000
Marcetta-Bearmouth-Branham families complex, steep mountain slopes	541C	19	1707991	1vb9h	mt623	1988	1:24000
Cuberant-Ledgefork-Rock outcrop association, 15 to 70 percent slopes, extremely stony	93	11592	757996	tfrh	ut647		1:24000
Cuberant-Ledgefork-Rubble land, talus association, 15 to 70 percent slopes, extremely stony	100	3557	757997	tfrj	ut647		1:24000
Ledgefork very gravelly loamy fine sand, 20 to 60 percent slopes	46	2431	758304	tg2f	ut647		1:24000
Ledgefork-Kamack association, 20 to 60 percent slopes	46-47	1739	758308	tg2k	ut647		1:24000
Rock outcrop-Ledgefork family, very stony complex, 10 to 55 percent slopes	98	561	758336	tg3g	ut647		1:24000
Ledgefork family, 5 to 30 percent slopes, very stony	27	555	758307	tg2j	ut647		1:24000
Ledgefork, extremely stony-Ledgefork complex, 20 to 80 percent slopes	45-46	521	758306	tg2h	ut647		1:24000
Ledgefork very stony loamy fine sand, 40 to 80 percent slopes, extremely stony	45	471	758305	tg2g	ut647		1:24000
Cuberant, extremely stony-Ledgefork association, 30 to 70 percent slopes	43-46	421	757995	tfrg	ut647		1:24000
Ledgefork cobbly sandy loam, 3 to 5 percent slopes	NS748	85	3254037	2zw70	ut647		1:24000
Kimpton, extremely stony-Foxpoint, rubbly-Ledgefork families, complex, 8 to 25 percent slopes	77	1874	815230	wc9r	ut651		1:24000
Ledgefork cobbly sandy loam, 3 to 5 percent slopes	143	635	503993	jxfv	wy638	1990	1:24000
Ledgefork-Como-Targhee families, complex, 7 to 40 percent slopes	309L	14100	1685582	1tkzm	wy656	2008	1:24000
Ledgefork-Como families-Rock outcrop complex, 7 to 40 percent slopes	317L	3082	1685584	1tkzp	wy656	2008	1:24000
Bullflat-Ledgefork families, complex, 7 to 40 percent slopes	44L	1149	157759	5950	wy656	2008	1:24000
Ledgefork family, 7 to 40 percent slopes	306L	160	1857582	20bz0	wy656	2008	1:24000
Ledgefork family-Aquic Cumulic Haplocryolls complex, 0 to 5 percent slopes	130	659	151946	533h	wy663	2012	1:24000
Como-Ledgefork families-Typic Cryaquepts, complex	1267	30817	3056497	2xtrg	wy665	1996	1:62500
Como-Matcher-Ledgefork families, complex	182	26568	3056486	2xtr7	wy665	1996	1:62500
Idmonton, Ledgefork families and Typic Cryaquolls, soils	2261	22966	3056516	2xtsc	wy665	1996	1:62500
Kangas, Ledgefork families and Typic Cryaquolls, soils	8261	18132	3056550	2xtt9	wy665	1996	1:62500
Midfork-Ledgefork families, complex	2207	4613	3056517	2xts5	wy665	1996	1:62500

Map of Series Extent

Approximate geographic distribution of the LEDGEFORK 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).