Soil Data Explorer - PORTERVILLE

Official Series Description

Lab Data Summary

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

There are insufficient data to create the sibling sketch figure.

Select annual climate data summaries for the PORTERVILLE 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).

There are insufficient data to create the annual climate figure.

Geomorphic description summaries for the PORTERVILLE 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 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.

Competing Series

Soil series competing with PORTERVILLE 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 PORTERVILLE 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 PORTERVILLE 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 PORTERVILLE, 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 PORTERVILLE 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
Porterville clay, 2 to 10 percent slopes	PtB	503	458817	hdfk	ca021	1961	1:20000
Porterville clay, 0 to 2 percent slopes	PtA	374	458816	hdfj	ca021	1961	1:20000
Porterville clay, o to 3 percent slopes	PwA	5515	463122	hjxf	ca648	1959	1:20000
Porterville clay, 3 to 8 percent slopes	PwB	150	463123	hjxg	ca648	1959	1:20000
Porterville clay, 3 to 8 percent slopes	PfB	593	463480	hk8z	ca651	1959	1:20000
Porterville clay, 0 to 3 percent slopes	PfA	321	463479	hk8y	ca651	1959	1:20000
Porterville rocky clay, 3 to 8 percent slopes	PgB	171	463481	hk90	ca651	1959	1:20000
Porterville clay, 0 to 3 percent slopes	PxA	6915	464421	hl8b	ca654	1966	1:24000
Porterville clay, 3 to 15 percent slopes	PxC	2265	464422	hl8c	ca654	1966	1:24000
Porterville cobbly clay, 3 to 15 percent slopes	PyC	1365	464423	hl8d	ca654	1966	1:24000
Porterville very cobbly clay, 0 to 30 percent slopes	PzD	1031	464424	hl8f	ca654	1966	1:24000
Porterville clay, 2 to 9 percent slopes	148	18187	463613	hkf8	ca660	1977	1:24000
Porterville clay, 0 to 2 percent slopes	147	11504	463612	hkf7	ca660	1977	1:24000
Porterville cobbly clay, 2 to 15 percent slopes	150	6809	463615	hkfb	ca660	1977	1:24000
Porterville clay, 9 to 15 percent slopes	149	3342	463614	hkf9	ca660	1977	1:24000
Porterville cobbly clay, 5 to 9 percent slopes	164	717	463868	hkph	ca670	1977	1:24000
Porterville clay, 5 to 9 percent slopes	163	299	463867	hkpg	ca670	1977	1:24000
Porterville clay, moderately deep, slightly saline-alkali, 0 to 5 percent slopes	PtB	1751	458336	hcy1	ca679	1967	1:15840
Porterville clay, 0 to 8 percent slopes	PoC	939	458333	hcxy	ca679	1967	1:15840
Porterville cobbly clay, 2 to 15 percent slopes	PrD	873	458334	hcxz	ca679	1967	1:15840
Porterville clay, moderately deep, 2 to 8 percent slopes	PsC	766	458335	hcy0	ca679	1967	1:15840
Porterville gravelly clay, moderately deep, 2 to 15 per cent slopes, eroded	PvD2	298	458337	hcy2	ca679	1967	1:15840

Map of Series Extent

Approximate geographic distribution of the PORTERVILLE 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).