Soil Data Explorer - JACKNIFE

Official Series Description

Lab Data Summary

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

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

Soil series sharing subgroup-level classification with JACKNIFE, 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 JACKNIFE 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
Jacknife-Aikman families association, 0 to 5 percent slopes.	190	3713	470505	hsll	ca703	1983	1:24000
Jacknife silt loam, 12 to 25 percent slopes	JaC	2932	154097	55bw	id618	1965	1:24000
Jacknife silt loam, 12 to 25 percent slopes, eroded	JaC2	1314	154098	55bx	id618	1965	1:24000
Jacknife-Mehlhorn silt loams, 25 to 45 percent slopes	JmD	1017	154104	55c3	id618	1965	1:24000
Jacknife silt loam, 7 to 12 percent slopes	JaB	609	154096	55bv	id618	1965	1:24000
Jacknife silt loam, 25 to 45 percent slopes	JaD	599	154099	55by	id618	1965	1:24000
Jacknife-Mehlhorn silt loams, 25 to 45 percent slopes, eroded	JmD2	250	154105	55c4	id618	1965	1:24000
Jacknife loam, 4 to 8 percent slopes	98	2981	81297	2qlh	id656	1992	1:24000
Jacknife very stony loam, 4 to 30 percent slopes	101	1820	81098	2qd2	id656	1992	1:24000
Jacknife loam, 1 to 4 percent slopes	97	1366	81296	2qlg	id656	1992	1:24000
Jacknife loam, 8 to 12 percent slopes	99	1133	81298	2qlj	id656	1992	1:24000
Jacknife loam, 12 to 30 percent slopes	100	1076	81097	2qd1	id656	1992	1:24000
Jacknife very cobbly loam, 0 to 30 percent slopes, extremely stony	JkE	2077	80579	2pvb	id660	1962	1:15840
Jacknife loam, 12 to 30 percent slopes	JcE	1482	80577	2pv8	id660	1962	1:15840
Jacknife loam, 7 to 12 percent slopes	JcD	1075	80576	2pv7	id660	1962	1:15840
Jacknife clay loam, 7 to 12 percent slopes	JaD	712	80573	2pv4	id660	1962	1:15840
Jacknife loam, 3 to 7 percent slopes	JcC	677	80575	2pv6	id660	1962	1:15840
Jacknife stony loam, 12 to 30 percent slopes	JfE	323	80578	2pv9	id660	1962	1:15840
Jacknife clay loam, 3 to 7 percent slopes	JaC	275	80572	2pv3	id660	1962	1:15840
Jacknife loam, 1 to 3 percent slopes	JcB	116	80574	2pv5	id660	1962	1:15840
Jacknife clay loam, 1 to 3 percent slopes	JaB	112	80571	2pv2	id660	1962	1:15840

Map of Series Extent

Approximate geographic distribution of the JACKNIFE 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).