Soil Data Explorer - KAPOWSIN

Official Series Description

Lab Data Summary

Aggregate lab data for the KAPOWSIN soil series. This aggregation is based on all pedons with a current taxon name of KAPOWSIN, 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 KAPOWSIN 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 KAPOWSIN 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 KAPOWSIN 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 KAPOWSIN 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 KAPOWSIN 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 KAPOWSIN 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 KAPOWSIN 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 KAPOWSIN 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 KAPOWSIN, 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 KAPOWSIN 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
Kapowsin gravelly ashy loam, 15 to 30 percent slopes	101	1315	73896	2t61y	wa634	1986	1:24000
Kapowsin gravelly ashy loam, 30 to 65 percent slopes	102	602	73897	2t620	wa634	1986	1:24000
Kapowsin gravelly ashy loam, 6 to 15 percent slopes	100	493	73895	2t61x	wa634	1986	1:24000
Kapowsin gravelly ashy loam, 0 to 6 percent slopes	22	11408	74192	2t61w	wa635	1977	1:24000
Kapowsin gravelly ashy loam, 6 to 15 percent slopes	23	5700	74193	2t61x	wa635	1977	1:24000
Kapowsin variant gravelly clay loam, 0 to 5 percent slopes	24	1090	74194	2y5vk	wa635	1977	1:24000
Kapowsin gravelly ashy loam, 0 to 6 percent slopes	19B	51836	74665	2t61w	wa653	1974	1:24000
Kapowsin gravelly ashy loam, 6 to 15 percent slopes	19C	18218	74666	2t61x	wa653	1974	1:24000
Kapowsin gravelly ashy loam, 15 to 30 percent slopes	19D	3657	74667	2t61y	wa653	1974	1:24000
Kapowsin gravelly loam, 50 to 70 percent slopes	19F	2555	74669	2hpp	wa653	1974	1:24000
Kapowsin gravelly ashy loam, 30 to 65 percent slopes	19E	1535	74668	2t620	wa653	1974	1:24000
Urban land-Kapowsin complex, 0 to 5 percent slopes	3068	334	3242056	2zl8h	wa653	1974	1:24000
Urban land-Kapowsin complex, 12 to 35 percent slopes	3070	6	3242058	2zl8k	wa653	1974	1:24000
Urban land-Kapowsin complex, 5 to 12 percent slopes	3069	3	3242057	2zl8j	wa653	1974	1:24000
Kapowsin silt loam, 3 to 15 percent slopes	51	8623	2454732	2ndbx	wa667	1983	1:24000
Kapowsin silt loam, 0 to 3 percent slopes	50	8059	2454679	2nd96	wa667	1983	1:24000
Kapowsin stony loam, 3 to 15 percent slopes	55	1542	2454736	2ndc1	wa667	1983	1:24000
Kapowsin silt loam, 15 to 30 percent slopes	52	1137	2454733	2ndby	wa667	1983	1:24000
Kapowsin silt loam, 30 to 50 percent slopes	53	872	2454734	2ndbz	wa667	1983	1:24000
Kapowsin stony loam, 0 to 3 percent slopes	54	539	2454735	2ndc0	wa667	1983	1:24000
Urban land-Kapowsin complex, 0 to 5 percent slopes	3068	736	3227061	2zl8h	wa776	2021	1:24000
Urban land-Kapowsin complex, 5 to 12 percent slopes	3069	12	3227062	2zl8j	wa776	2021	1:24000
Urban land-Kapowsin complex, 12 to 35 percent slopes	3070	9	3227063	2zl8k	wa776	2021	1:24000

Map of Series Extent

Approximate geographic distribution of the KAPOWSIN 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).