Soil Data Explorer - CENTRALIA

Official Series Description

Lab Data Summary

Aggregate lab data for the CENTRALIA soil series. This aggregation is based on all pedons with a current taxon name of CENTRALIA, 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 CENTRALIA were used in the calculation. Source: KSSL snapshot (updated 2020-03-13). Methods used to assemble the KSSL snapshot used by SoilWeb / SDE

Pedons used in the lab summary:

MLRA	Lab ID	Pedon ID	Taxonname	CI	NSSL / NASIS Reports	Link To SoilWeb GMap
1	84P0911	84WA015005	Centralia	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.3666649,-123.0833359

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the CENTRALIA 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 CENTRALIA 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 CENTRALIA 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 CENTRALIA 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 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 CENTRALIA 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 CENTRALIA 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 CENTRALIA 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 hills 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 CENTRALIA, 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

Click a link below to display the diagram. Note that these diagrams may be from multiple survey areas.

1. WA-2012-05-11-24 | Grays Harbor County Area, Pacific County, and Wahkiakum County - July 1986

   Pattern of soils and parent material in general soil map unit 9 (Soil Survey of Grays Harbor County Area, Pacific County, and Wahkiakum County, Washington; July 1986).

2. WA-2012-05-11-33 | Lewis County Area - May 1987

   Pattern of soils and parent material in the Melbourne-Buckpeak-Centralia map unit (Soil Survey of Lewis County Area, Washington; May 1987).

Map Units

Map units containing CENTRALIA 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
Centralia silt loam, 20 to 30 percent slopes	23	17500	72320	2f7x	wa015	1994	1:24000
Centralia silt loam, 8 to 20 percent slopes	22	4700	72299	2f77	wa015	1994	1:24000
Centralia silt loam, 0 to 8 percent slopes	21	810	72281	2f6n	wa015	1994	1:24000
Centralia loam, 8 to 30 percent slopes	28	23271	73621	2glw	wa627	1979	1:24000
Centralia loam, 30 to 65 percent slopes	29	3934	73622	2glx	wa627	1979	1:24000
Centralia loam, 1 to 8 percent slopes	27	3900	73620	2glv	wa627	1979	1:24000
Centralia loam, 15 to 30 percent slopes	44	19509	74437	2hg6	wa641	1980	1:24000
Centralia loam, 8 to 15 percent slopes	43	10117	74436	2hg5	wa641	1980	1:24000
Centralia loam, 0 to 8 percent slopes	42	2160	74435	2hg4	wa641	1980	1:24000
Centralia variant loam, 8 to 30 percent slopes	46	1517	74439	2hg8	wa641	1980	1:24000
Centralia variant loam, 0 to 8 percent slopes	45	898	74438	2hg7	wa641	1980	1:24000
Centralia silt loam, 30 to 60 percent slopes	256	471	1155395	17s8t	wa641	1980	1:24000
Centralia silt loam, 30 to 60 percent slopes	25	3545	2454659	2nd8k	wa667	1983	1:24000
Centralia silt loam, 15 to 30 percent slopes	24	3027	2454658	2nd8j	wa667	1983	1:24000
Centralia silt loam, 8 to 15 percent slopes	23	2476	2454657	2nd8h	wa667	1983	1:24000

Map of Series Extent

Approximate geographic distribution of the CENTRALIA 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).