Soil Data Explorer - FALKIRK

Official Series Description

Lab Data Summary

Aggregate lab data for the FALKIRK soil series. This aggregation is based on all pedons with a current taxon name of FALKIRK, 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 FALKIRK 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 FALKIRK 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 FALKIRK 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 FALKIRK 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 FALKIRK 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 FALKIRK 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 FALKIRK 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 FALKIRK 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).

Soil series sharing subgroup-level classification with FALKIRK, 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 FALKIRK 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
Williams-Falkirk loams, 3 to 6 percent slopes	C164B	22633	2564292	2q2jk	nd029	1979	1:20000
Williams-Falkirk loams, 0 to 3 percent slopes	C164A	12749	2564293	2q2jl	nd029	1979	1:20000
Williams-Falkirk loams, 3 to 6 percent slopes	E3510B	46	2661809	2qkx5	nd029	1979	1:20000
Williams-Falkirk loams, 0 to 3 percent slopes	E3510A	31	2661808	2qkx4	nd029	1979	1:20000
Williams-Falkirk loams, 0 to 3 percent slopes	C164A	10	2596646	2q2jl	nd043	1985	1:20000
Williams-Falkirk loams, 3 to 6 percent slopes	C164B	38	2596729	2q2jk	nd051	1992	1:24000
Williams-Falkirk loams, 0 to 3 percent slopes	C164A	1	2596730	2q2jl	nd051	1992	1:24000
Falkirk loam, 0 to 3 percent slopes	C160A	21178	2566694	2q4x1	nd055	1974	1:20000
Williams-Falkirk loams, 3 to 6 percent slopes	C164B	18151	2596989	2q2jk	nd055	1974	1:20000
Williams-Falkirk loams, 0 to 3 percent slopes	C164A	14138	2596990	2q2jl	nd055	1974	1:20000
Falkirk loam, 3 to 6 percent slopes	C160B	2921	2566695	2q4x2	nd055	1974	1:20000
Williams-Falkirk loams, 6 to 9 percent slopes	C164C	1333	2596994	2q3hn	nd055	1974	1:20000
Falkirk-Haplustolls complex, 0 to 3 percent slopes	C1014A	221	2775257	2xfnt	nd055	1974	1:20000
Falkirk loam, 0 to 3 percent slopes	E3509A	48	2662479	2qkx3	nd055	1974	1:20000
Williams-Falkirk loams, 3 to 6 percent slopes	E3510B	38	2662480	2qkx5	nd055	1974	1:20000
Falkirk loam, 0 to 3 percent slopes	E3509A	1009	2699255	2qkx3	nd057	1976	1:20000
Williams-Falkirk loams, 3 to 6 percent slopes	C164B	1	2597002	2q2jk	nd061	1988	1:24000
Williams-Falkirk loams, 0 to 3 percent slopes	C164A	1	2597003	2q2jl	nd061	1988	1:24000
Williams-Falkirk loams, 3 to 6 percent slopes	C164B	6	2597017	2q2jk	nd083	1990	1:20000
Williams-Falkirk loams, 3 to 6 percent slopes	C164B	3	2797861	2q2jk	sd021	1978	1:20000

Map of Series Extent

Approximate geographic distribution of the FALKIRK 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).