Soil Data Explorer - BREVARD

Official Series Description

Lab Data Summary

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

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

Competing Series

Soil series competing with BREVARD 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 BREVARD 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 BREVARD 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 BREVARD, 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. NC-2010-09-27-07 | Burke County - 2006

   Typical relationship between soils, landform, and parent material in the Cliffield-Pigeonroost general soil map unit in the South Mountains (Soil Survey of Burke County, North Carolina; 2006).

2. NC-2010-09-28-12 | Surry County - 2007

   Relationship of soils, landscape, and geology in the Cowee-Evard general soil map unit and the Chestnut-Peaks general soil map unit (Soil Survey of Surry County, North Carolina; 2007).

Map Units

Map units containing BREVARD 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
Brevard fine sandy loam, 1 to 6 percent slopes, rarely flooded	BvB	770	116783	3xj6	nc023	2000	1:24000
Brevard loam, 7 to 15 percent slopes	BrC	2899	546842	lc12	nc089	1974	1:20000
Brevard loam, 15 to 25 percent slopes	BrE	2634	546843	lc13	nc089	1974	1:20000
Brevard loam, 25 to 45 percent slopes	BrF	65	546844	lc14	nc089	1974	1:20000
Brevard-Greenlee complex, 8 to 25 percent slopes, very bouldery	BrE	126	2424776	2md5l	nc097	2011	1:12000
Brevard-Greenlee complex, 25 to 60 percent slopes, very bouldery	BrF	24	2424777	2md5m	nc097	2011	1:12000
Brevard sandy loam, 8 to 15 percent slopes	BrC	356	111074	3ql1	nc149	1992	1:24000
Brevard-Greenlee complex, 25 to 60 percent slopes, extremely bouldery	BrE	3148	1383669	1hfth	nc169	1992	1:24000
Brevard-Greenlee complex, 8 to 25 percent slopes, extremely bouldery	BrD	652	1383670	1hftj	nc169	1992	1:24000
Brevard-Greenlee complex, 8 to 25 percent slopes, very bouldery	BrD	652	1427553	1jxh3	nc171	2005	1:24000
Brevard-Greenlee complex, 25 to 60 percent slopes, very bouldery	BrE	528	127509	48p6	nc171	2005	1:24000
Brevard loam, 10 to 25 percent slopes	BvE	3343	2390361	2l7cf	nc175	1968	1:12000
Brevard loam, 25 to 45 percent slopes	BvF	486	2390363	2l7ch	nc175	1968	1:12000
Evard-Brevard association, steep	EVF	20813	132480	4fvk	sc045	1972	1:20000
Brevard-Evard complex, 15 to 25 percent slopes	BvE	16942	132463	4fv0	sc045	1972	1:20000
Brevard fine sandy loam, 10 to 15 percent slopes	BrD	4863	132460	4ftx	sc045	1972	1:20000
Brevard fine sandy loam, 6 to 10 percent slopes	BrC	3914	132459	4ftw	sc045	1972	1:20000
Brevard sandy clay loam, 10 to 25 percent slopes, eroded	BsE2	1278	132462	4ftz	sc045	1972	1:20000
Brevard sandy clay loam, 2 to 10 percent slopes, eroded	BsC2	568	132461	4fty	sc045	1972	1:20000
Tusquitee loam, 4 to 10 percent slopes	TuC	510	131077	4dd9	sc077	1967	1:20000
Brevard fine sandy loam, 7 to 15 percent slopes	7C	1309	130747	4d1n	sc604	1982	1:24000
Brevard fine sandy loam, 15 to 50 percent slopes	7E	721	130748	4d1p	sc604	1982	1:24000
Brevard loam, 15 to 25 percent slopes	BrD	1803	523733	kkzm	tn139	1997	1:24000
Brevard loam, 25 to 45 percent slopes	BrE	974	523734	kkzn	tn139	1997	1:24000
Brevard loam, 5 to 15 percent slopes	BrC	854	523732	kkzl	tn139	1997	1:24000
Brevard-Greenlee complex, 8 to 25 percent slopes, very bouldery	7D	20	1670504	1t297	va077	2006	1:24000

Map of Series Extent

Approximate geographic distribution of the BREVARD 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).