Soil Data Explorer - WATCHUNG

Official Series Description

Lab Data Summary

Aggregate lab data for the WATCHUNG soil series. This aggregation is based on all pedons with a current taxon name of WATCHUNG, 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 WATCHUNG 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
148	87P0187	86MD510005	Watchung	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.3713875,-76.6869431

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the WATCHUNG 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 WATCHUNG 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 WATCHUNG 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 WATCHUNG 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 mountains figure.

Competing Series

Soil series competing with WATCHUNG 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 WATCHUNG 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 WATCHUNG 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 mountains figure.

Soil series sharing subgroup-level classification with WATCHUNG, 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. MD-2010-09-10-04 | Cecil County -

   Neshaminy-Montalto-Chrome-Watchung association (Soil Survey of Cecil County, Maryland).

2. PA-2010-09-30-02 | Adams County - 2005

   Typical pattern of soils and parent material in the Lehigh-Neshiminy general soil map unit (Soil Survey of Adams County, Pennsylvania; 2005).

Map Units

Map units containing WATCHUNG 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
Watchung silt loam, 0 to 3 percent slopes	WaA	452	2479897	2p7jp	de003	2009	1:24000
Watchung silt loam, 3 to 8 percent slopes	WaB	259	2479898	2p7jq	de003	2009	1:24000
Watchung silt loam, 0 to 8 percent slopes, very stony	WcB	185	2479899	2p7jr	de003	2009	1:24000
Watchung silt loam, 3 to 8 percent slopes	WaB	935	2406083	2lrql	md005	2010	1:12000
Watchung-Urban land complex, 0 to 8 percent slopes	WdB	574	2483386	2pc57	md005	2010	1:12000
Watchung silt loam, 3 to 8 percent slopes, stony	WcB	485	2406088	2lrqr	md005	2010	1:12000
Watchung silt loam, 0 to 3 percent slopes	WaA	86	2406080	2lrqh	md005	2010	1:12000
Conowingo-Watchung complex, 0 to 8 percent slopes, very stony	CrB	290	2440775	2mxtp	md015	2009	1:12000
Watchung silt loam, 0 to 3 percent slopes	WaA	221	2440773	2mxtm	md015	2009	1:12000
Watchung silt loam, 3 to 8 percent slopes	WaB	73	2440774	2mxtn	md015	2009	1:12000
Watchung silt loam, 0 to 8 percent slopes	WcB	449	530780	kt9y	md021	2001	1:12000
Watchung silt loam, 3 to 8 percent slopes, stony	WcB	423	793659	vmvx	md027	2004	1:12000
Watchung silt loam, 0 to 3 percent slopes	WaA	97	793658	vmvw	md027	2004	1:12000
Watchung silty clay loam, 0 to 3 percent slopes	28A	838	533617	kx8g	md031	1989	1:15840
Watchung very stony silt loam, 0 to 8 percent slopes	WcB	2969	533459	kx3c	md600	1972	1:15840
Watchung silt loam, 3 to 8 percent slopes	WaB	2281	533458	kx3b	md600	1972	1:15840
Watchung silt loam, 0 to 3 percent slopes	WaA	1302	533457	kx39	md600	1972	1:15840
Mount Lucas-Watchung silt loams, 0 to 6 percent slopes, very stony	MopBb	3323	548634	ldww	nj019	1970	1:24000
Watchung silt loam, 0 to 2 percent slopes	WasA	138	1427788	1jxqp	nj019	1970	1:24000
Watchung silt loam, 0 to 3 percent slopes, very rubbly	WasAe	236	607168	nct2	nj021	1969	1:24000
Watchung silt loam, 0 to 2 percent slopes	WasA	197	1427042	1jwym	nj021	1969	1:24000
Mount Lucas-Watchung silt loams, 0 to 6 percent slopes, very stony	MopBb	79	135101	4jl3	nj021	1969	1:24000
Mount Lucas-Watchung silt loams, 6 to 12 percent slopes, very stony	MopCb	14	135102	4jl4	nj021	1969	1:24000
Watchung silt loam, 0 to 2 percent slopes, very stony	WasAb	788	1395439	1hv25	nj023	1985	1:24000
Mount Lucas-Watchung silt loams, 6 to 12 percent slopes, very stony	MopCb	21	1455179	1kv78	nj023	1985	1:24000
Mount Lucas-Watchung silt loams, 6 to 12 percent slopes, very stony	MopCb	6159	1405048	1j524	nj035	1972	1:24000
Watchung silt loam, 0 to 2 percent slopes	WasA	1710	1443931	1kgjf	nj035	1972	1:24000
Mount Lucas-Watchung silt loams, 0 to 6 percent slopes, very stony	MopBb	105	1405047	1j523	nj035	1972	1:24000
Watchung silt loam, 0 to 3 percent slopes	WaA	5911	545658	l9sw	pa001	1991	1:24000
Watchung silt loam, 3 to 8 percent slopes	WaB	809	545659	l9sx	pa001	1991	1:24000
Watchung silt loam, 0 to 8 percent slopes, extremely bouldery	WbB	512	545660	l9sy	pa001	1991	1:24000
Watchung silt loam, 0 to 3 percent slopes	WaA	642	641642	pjp4	pa029	2008	1:24000
Watchung silt loam, 3 to 8 percent slopes	WaB	417	641643	pjp5	pa029	2008	1:24000
Watchung silt loam	Wa	627	540773	l4q9	pa043	1967	1:15840
Watchung very stony silt loam	Wc	380	540774	l4qb	pa043	1967	1:15840
Watchung silt loam, 3 to 8 percent slopes	WaB	14	984456	2zhhw	pa045	1960	1:20000
Watchung silt loam, 0 to 3 percent slopes	WaA	13	984455	2zhhv	pa045	1960	1:20000
Watchung silt loam, 0 to 8 percent slopes, very stony	WcB	3	984530	30cgl	pa045	1960	1:20000
Watchung extremely stony silt loam, 0 to 8 percent slopes	WbB	48	558454	lr3n	pa071	1982	1:15840
Watchung extremely stony silt loam, 0 to 8 percent slopes	WbB	970	541342	l59n	pa075	1976	1:20000
Watchung silt loam, 0 to 5 percent slopes	WaA	809	541341	l59m	pa075	1976	1:20000
Watchung silt loam, 0 to 8 percent slopes, extremely stony	WcB	1415	541261	l571	pa091	2008	1:12000
Watchung silt loam, 3 to 8 percent slopes	WaB	534	541260	l570	pa091	2008	1:12000
Watchung silt loam, 0 to 3 percent slopes	WaA	325	541259	l56z	pa091	2008	1:12000
Watchung silt loam, 0 to 8 percent slopes, extremely bouldery	WbB	4294	542963	l6zy	pa133	1990	1:24000
Watchung silt loam, 0 to 3 percent slopes	WaA	1965	542961	l6zw	pa133	1990	1:24000
Watchung silt loam, 3 to 8 percent slopes	WaB	267	542962	l6zx	pa133	1990	1:24000

Map of Series Extent

Approximate geographic distribution of the WATCHUNG 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).