Soil Data Explorer - DOWNSVILLE

Official Series Description

Lab Data Summary

Aggregate lab data for the DOWNSVILLE soil series. This aggregation is based on all pedons with a current taxon name of DOWNSVILLE, 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 DOWNSVILLE were used in the calculation. Source: KSSL snapshot (updated 2020-03-18). 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
147	05N0628	S2005WV037005	Downsville	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.2352778,-77.8213889
147	05N0629	S2005WV037006	Downsville	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.4936111,-77.7736111

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the DOWNSVILLE 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 DOWNSVILLE 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).

Select annual climate data summaries for the DOWNSVILLE 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 DOWNSVILLE 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 flats position figure.

Competing Series

Soil series competing with DOWNSVILLE 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 DOWNSVILLE 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 DOWNSVILLE 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 mountains 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 DOWNSVILLE, 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 DOWNSVILLE 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
Downsville silt loam, 3 to 8 percent slopes	DvB	763	2401129	2llks	md001	2009	1:12000
Downsville silt loam, 8 to 15 percent slopes	DvC	447	2401130	2llkt	md001	2009	1:12000
Downsville silt loam, 0 to 3 percent slopes	DvA	292	2401128	2llkr	md001	2009	1:12000
Downsville-Urban land complex, 8 to 15 percent slopes	DwC	148	2401020	2llg8	md001	2009	1:12000
Downsville-Urban land complex, 0 to 8 percent slope	DwB	123	2401019	2llg7	md001	2009	1:12000
Downsville gravelly loam, 8 to 15 percent slopes	DoC	554	534799	kyhl	md021	2001	1:12000
Downsville gravelly loam, 3 to 8 percent slopes	DoB	319	534802	kyhp	md021	2001	1:12000
Downsville gravelly loam, 3 to 8 percent slopes	DoB	3107	534273	kxym	md043	1998	1:12000
Downsville gravelly loam, 8 to 15 percent slopes	DoC	3087	534274	kxyn	md043	1998	1:12000
Downsville gravelly loam, 15 to 25 percent slopes	DoD	1422	534275	kxyp	md043	1998	1:12000
Downsville gravelly loam, 25 to 45 percent slopes	DoE	142	534276	kxyq	md043	1998	1:12000
Downsville gravelly loam, 0 to 3 percent slopes	DoA	31	534272	kxyl	md043	1998	1:12000
Downsville gravelly loam, 3 to 8 percent slopes	DoB	721	545103	l96z	pa055	1999	1:24000
Downsville gravelly loam, 8 to 25 percent slopes	DoD	93	545104	l970	pa055	1999	1:24000
Downsville gravelly loam, 3 to 8 percent slopes	DsB	1526	516231	kb5m	wv003	1997	1:24000
Downsville gravelly loam, 8 to 15 percent slopes	DsC	1164	516232	kb5n	wv003	1997	1:24000
Downsville gravelly loam, 15 to 25 percent slopes	DsD	184	516233	kb5p	wv003	1997	1:24000
Downsville gravelly loam, 8 to 15 percent slopes	DsC	1591	1710248	1vdn9	wv037		1:24000
Downsville gravelly loam, 15 to 25 percent slopes	DsD	1161	1710249	1vdnb	wv037		1:24000
Downsville gravelly loam, 3 to 8 percent slopes	DsB	594	1710247	1vdn8	wv037		1:24000
Downsville gravelly loam, 25 to 35 percent slopes	DsE	176	1710250	1vdnc	wv037		1:24000
Downsville gravelly loam, 8 to 15 percent slopes	DsC	206	555683	ln78	wv065	2003	1:24000
Downsville gravelly loam, 3 to 8 percent slopes	DsB	183	555682	ln77	wv065	2003	1:24000

Map of Series Extent

Approximate geographic distribution of the DOWNSVILLE 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).