Soil Data Explorer - DOWNEYVILLE

Official Series Description

Lab Data Summary

Aggregate lab data for the DOWNEYVILLE soil series. This aggregation is based on all pedons with a current taxon name of DOWNEYVILLE, 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 DOWNEYVILLE 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
27	72C0011	1972NV001001	DOWNEYVILLE	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.0833333,-118.1291667
29	83P0614	83NV009003	DOWNEYVILLE	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	37.332222,-117.3838882

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the DOWNEYVILLE 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 DOWNEYVILLE 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 DOWNEYVILLE 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 DOWNEYVILLE 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 DOWNEYVILLE 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 DOWNEYVILLE 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 DOWNEYVILLE 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 DOWNEYVILLE, 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. NV-2012-05-09-18 | Mineral County Area - October 1991

   Appearance of some detailed soil map units as they occur in various positions on the landscape (Soil Survey of Mineral County Area, Nevada; October 1991).

2. NV-2012-05-09-19 | Mineral County Area - October 1991

   Landscape positions of each major soil component identified within the respective map units (Soil Survey of Mineral County Area, Nevada; October 1991).

Map Units

Map units containing DOWNEYVILLE 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
Downeyville-Gabbvally-Malmesa association	365ec	40	2390624	2l7mx	ca763	1984	1:24000
Downeyville-Pintwater-Rock outcrop association	1011	1360	3271061	312sj	ca806		1:24000
Downeyville-Silverbow-Rock outcrop association	SH	4633	495638	2s22j	nv622	1972	1:24000
Downeyville-Pintwater-Rock outcrop association	DPR	3209	495630	2v41c	nv622	1972	1:24000
Downeyville-Blacktop-Rock outcrop association	1011	14733	476379	2s21d	nv770	1995	1:24000
Downeyville-Stewval-Blacktop association	1010	8119	476378	2s219	nv770	1995	1:24000
Downeyville, moist-Downeyville-Gabbvally association	1013	5628	476381	2s22h	nv770	1995	1:24000
Downeyville, moist-Downeyville-Blacktop association	1012	2420	476380	2s22q	nv770	1995	1:24000
Nemico-Lapon-Downeyville association	7006	562	2229614	2dv31	nv770	1995	1:24000
Downeyville-Blacktop-Rock outcrop association	1240	83001	476739	2s21d	nv774	1985	1:24000
Downeyville, moist-Downeyville-Gabbvally association	4176	25408	476958	2s22h	nv774	1985	1:24000
Downeyville, moist-Downeyville-Blacktop association	4175	22250	476957	2s22q	nv774	1985	1:24000
Loomer-Rowel-Downeyville association	3140	6175	476905	j081	nv774	1985	1:24000
Downeyville-Stewval-Rock outcrop association	4173	5357	476955	j09n	nv774	1985	1:24000
Downeyville-Stewval-Blacktop association	4178	5092	476960	2s219	nv774	1985	1:24000
Belted-Downeyville association	1320	4805	476750	j031	nv774	1985	1:24000
Downeyville-Stewval-Mirkwood association	4174	3270	476956	j09p	nv774	1985	1:24000
Candelaria-Downeyville-Annaw association	4188	2177	476968	j0b2	nv774	1985	1:24000
Loomer-Downeyville-Rock outcrop association	3142	1903	476907	j083	nv774	1985	1:24000
Downeyville-Mirkwood-Nemico association	4177	1520	476959	j09s	nv774	1985	1:24000
Downeyville-Theon-Nemico association	7074	1406	2425589	2mf0t	nv774	1985	1:24000
Downeyville-Hawsley association	4171	734	476954	j09m	nv774	1985	1:24000
Stewval-Downeyville-Rock outcrop association	1227	35445	480710	2s22w	nv781	1994	1:24000
Downeyville-Rock outcrop complex, 15 to 50 percent slopes	1830	11727	480818	2s21f	nv781	1994	1:24000
Downeyville-Stewval-Blacktop association	1833	10050	480819	2s219	nv781	1994	1:24000
Downeyville-Blacktop-Rock outcrop association	1891	9825	480827	2s21d	nv781	1994	1:24000
Berzatic-Downeyville-Pintwater association	1263	9650	480724	j477	nv781	1994	1:24000
Stewval-Downeyville-Gabbvally association	1222	9252	480707	j46p	nv781	1994	1:24000
Pintwater-Stumble-Downeyville association	1955	4430	480838	j4bx	nv781	1994	1:24000
Downeyville-Goldyke-Blacktop association	1835	4404	480821	j4bc	nv781	1994	1:24000
Downeyville-Silverbow-Rock outcrop association	2040	235	480841	2s22j	nv781	1994	1:24000
Downeyville-Blacktop association	1834	1	480820	j4bb	nv781	1994	1:24000
Downeyville-Stewval association	3831	28777	481063	j4l5	nv783	1991	1:24000
Downeyville-Rock outcrop complex, 15 to 50 percent slopes	3830	18317	481062	2s21f	nv783	1991	1:24000
Downeyville-Tokoper association	3832	3737	481064	j4l6	nv783	1991	1:24000
Downeyville-Pintwater-Upspring association	2496	12597	469169	hr6h	nv785	1995	1:24000
Gabbvally-Downeyville association	2734	3716	469202	hr7k	nv785	1995	1:24000
Tokoper-Downeyville-Pintwater association	2251	3285	469118	hr4v	nv785	1995	1:24000
Gabbvally-Tognoni-Downeyville association	2732	2653	469201	hr7j	nv785	1995	1:24000
Downeyville-Blacktop-Tokoper association	2491	2591	469164	hr6b	nv785	1995	1:24000
Tokoper-Downeyville-Espint association	2254	2503	469121	hr4y	nv785	1995	1:24000
Downeyville-Unsel-Tokoper association	2760	1899	469208	hr7r	nv785	1995	1:24000
Gabbvally-Downeyville-Vindicator association	2731	1845	469200	hr7h	nv785	1995	1:24000
Downeyville-Vindicator-Stewval association	2494	1741	469167	hr6f	nv785	1995	1:24000
Downeyville-Advokay-Pintwater association	2640	1001	469185	hr70	nv785	1995	1:24000
Blacktop-Downeyville-Tognoni association	2741	890	469206	hr7p	nv785	1995	1:24000
Downeyville-Tognoni-Stonell association	2493	588	469166	hr6d	nv785	1995	1:24000
Downeyville-Silverbow-Rock outcrop association	2492	525	469165	2s22j	nv785	1995	1:24000
Downeyville-Gabbvally association	2495	143	469168	2s22g	nv785	1995	1:24000
Downeyville-Blacktop-Rock outcrop association	362	61103	485015	2s21d	nv796	1984	1:63360
Stewval-Downeyville-Rock outcrop association	230	36472	484957	2s22w	nv796	1984	1:63360
Downeyville-Silverbow-Rock outcrop association	363	28760	485016	2s22j	nv796	1984	1:63360
Downeyville-Gabbvally association	367	26521	485019	2s22g	nv796	1984	1:63360
Downeyville-Pintwater-Rock outcrop association	360	21224	485013	2v41c	nv796	1984	1:63360
Tokoper-Downeyville-Pintwater association	715	16671	485135	j8tj	nv796	1984	1:63360
Vindicator-Downeyville-Blacktop association	593	8270	485090	j8s2	nv796	1984	1:63360
Gabbvally-Downeyville-Rock outcrop association	658	6992	485113	j8st	nv796	1984	1:63360
Downeyville-Advokay-Pintwater association	369	5382	485021	2whm5	nv796	1984	1:63360
Downeyville-Pintwater-Upspring association	368	5010	485020	j8pt	nv796	1984	1:63360
Stewval-Downeyville, moist-Rock outcrop association	236	4724	484963	j8mz	nv796	1984	1:63360
Downeyville-Gabbvally-Malmesa association	365	3746	485018	j8pr	nv796	1984	1:63360
Pintwater-Blacktop-Downeyville association	414	3040	485034	j8q8	nv796	1984	1:63360
Downeyville-Vindicator-Advokay association	364	2939	485017	j8pq	nv796	1984	1:63360
Downeyville-Pumel-Rock outcrop association	361	2532	485014	j8pm	nv796	1984	1:63360
Tognoni-Blacktop-Downeyville association	281	2163	484980	j8nj	nv796	1984	1:63360
Terlco-Advokay-Downeyville association	191	1240	484943	j8mb	nv796	1984	1:63360
Ardivey-Downeyville-Leo association	477	1151	485064	j8r7	nv796	1984	1:63360
Downeyville-Blacktop-Rock outcrop association	251	4333	477621	2s21d	nv799	1991	1:24000
Downeyville, moist-Downeyville-Gabbvally association	250	2684	477620	2s22h	nv799	1991	1:24000
Downeyville, moist-Gabbvally association	252	1151	477622	j105	nv799	1991	1:24000
Downeyville, moist-Blacktop association	253	1070	477623	j106	nv799	1991	1:24000

Map of Series Extent

Approximate geographic distribution of the DOWNEYVILLE 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).