Soil Data Explorer - JOHNSTON

Official Series Description

Lab Data Summary

Aggregate lab data for the JOHNSTON soil series. This aggregation is based on all pedons with a current taxon name of JOHNSTON, 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 JOHNSTON 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
133A	08N0249	S08SC061002	Johnston	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	33.9824982,-80.1816635
133A	08N0250	S08SC085001	Johnston	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	33.9602776,-80.2277756
133A	08N0251	S08SC085002	Johnston	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	33.9597206,-80.2202759
133A	08N0252	S08SC085003	Johnston	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	33.980278,-80.223053
133A	08N0253	S08SC085004	Johnston	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	33.9813881,-80.2197189
133A	S89SC017-15	S1993SC017014	Johnston	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	33.5688868,-80.6679973
133A	S92SC069-39	S1995SC069023	Johnston	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	34.3680549,-79.5952365
153A	08N0256	S08SC085007	Johnston	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	33.9097214,-80.1761093
153A	08N0259	S08SC085010	Johnston	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	33.8805542,-80.1463852

Water Balance

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

There are insufficient data to create the annual climate figure.

Geomorphic description summaries for the JOHNSTON 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 2D hillslope position figure.

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 JOHNSTON, 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-2012-02-07-40 | Sampson County - August 1985

   Pattern of soils in map units 1, 2, and 5 north of Clinton (Soil Survey of Sampson County, North Carolina; August 1985).

Map Units

Map units containing JOHNSTON 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
Wet loamy alluvial land	Wm	41030	328224	c0jw	al003	1961	1:20000
Johnston, Bibb and Pamlico soils, 0 to 1 percent slopes, frequently flooded	JBA	36222	2995061	2x5qy	al097	2018	1:24000
Johnston, Pamlico and Dorovan soils, 0 to 1 percent slopes, frequently flooded	JPA	15860	2995021	2x5q8	al097	2018	1:24000
Johnston, Bibb and Smithton soils, 0 to 3 percent slopes, frequently flooded	JOA	11591	2995062	2x5qz	al097	2018	1:24000
Dorovan and Johnston soils, 0 to 1 percent slopes, frequently flooded	DJA	7844	2995025	2x5s1	al097	2018	1:24000
Bibb, Johnston and Kinston soils, 0 to 1 percent slopes, frequently flooded	BJK	3250	2994966	2x5rk	al097	2018	1:24000
Bibb, Johnston and Kinston soils, 0 to 1 percent slopes, frequently flooded	BJK	74887	2642057	2x5rk	al129	2013	1:24000
Kinston, Johnston, and Bibb soils, frequently flooded	43	44700	1444725	1khc1	fl091	1989	1:20000
Kinston-Johnston-Bibb complex, frequently flooded	15	38970	323984	bw43	fl131	1985	1:20000
Johnston loam	Jo	30275	324842	bx0s	ga185	1975	1:20000
Kinston and Johnston soils, 0 to 2 percent slopes, frequently flooded	KJA	23115	2408357	2wwt9	ga299	2008	1:24000
Johnston and Rains soils	Jd	43777	125137	466p	ga601	1969	1:20000
Kinston and Johnston soils, 0 to 2 percent slopes, frequently flooded	KJ	99290	125174	2wwt9	ga602	1983	1:20000
Johnston-Osier-Bibb association	Job	31886	125350	46fk	ga609	1967	1:20000
Osier-Johnston-Bibb association	Ojb	8835	125355	46fq	ga609	1967	1:20000
Kinston and Johnston soils, 0 to 2 percent slopes, frequently flooded	KJA	60245	2686767	2wwt9	ga611	2012	1:24000
Johnston loam	Je	1705	125379	46gh	ga613	1969	1:20000
Kinston and Johnston soils, 0 to 2 percent slopes, frequently flooded	KJA	49615	2686805	2wwt9	ga626	2013	1:24000
Johnston soils	Jo	3760	326001	by75	ga643	1974	1:20000
Johnston and Bibb soils	JB	21735	125808	46xb	ga644	1980	1:20000
Johnston loam	Jo	907	332001	c4gq	ms023	1963	1:15840
Swamp (johnston loam)	Sw	4935	332197	c4p1	ms031	1962	1:15840
Dorovan-Johnston association	Dh	32916	332260	c4r2	ms039	1967	1:20000
Bibb, Johnston and Kinston soils, 0 to 1 percent slopes, frequently flooded	BJK	13957	2642164	2x5rk	ms041	2012	1:24000
Dorovan and Johnston soils, 0 to 1 percent slopes, frequently flooded	DJA	3501	2642178	2x5s1	ms041	2012	1:24000
Croatan and Johnston soils, 0 to 2 percent slopes, frequently flooded	88	39918	332606	c537	ms059	1997	1:24000
Johnston-Croatan complex, frequently flooded	Jt	2421	333125	c5mz	ms091	1983	1:20000
Johnston mucky loam, occasionally flooded	Jo	913	333264	c5sg	ms099	1979	1:20000
Johnston loam (0 to 2 percent slopes)	Ja	1404	333321	c5v9	ms101	1957	1:20000
Johnston and Croatan soils, frequently flooded	13	5502	334085	c6my	ms131	1997	1:24000
Johnston sandy loam, 0 to 2 percent slopes, frequently flooded	JoA	2374	114526	3v5d	nc007	1999	1:24000
Bibb and Johnston loams, frequently flooded	BB	19630	111391	3qx8	nc015	1984	1:24000
Johnston mucky loam	JO	17468	115493	3w5l	nc017	1983	1:24000
Johnston loam, frequently flooded	Js	27633	115649	3wbm	nc047	1986	1:24000
Johnston loam	JT	26855	811107	w70r	nc051	1981	1:24000
Bibb sandy loam, 0 to 1 percent slopes, frequently flooded	BbA	25445	1865947	20mnv	nc061	1955	1:24000
Johnston and Pamlico soils, 0 to 1 percent slopes, frequently flooded	JpA	2624	1865968	20mpj	nc061	1955	1:24000
Bibb soils	BB	15661	1015483	132pj	nc065	1976	1:20000
Johnston soils	JS	2449	1015703	132xm	nc065	1976	1:20000
Bibb loam, frequently flooded	BB	7196	112796	3scl	nc079	1978	1:24000
Johnston loam, frequently flooded	JS	3634	112803	3sct	nc079	1978	1:24000
Bibb soils, frequently flooded	Bb	25546	113084	3snw	nc085	1984	1:24000
Bibb soils	BB	10668	113150	3sr0	nc091	1981	1:24000
Johnston loam	JT	19280	811283	w76f	nc093	1981	1:24000
Bibb sandy loam, 0 to 2 percent slopes, frequently flooded	Bb	28749	113519	3t3x	nc101	1986	1:24000
Johnston soils	JS	9005	116000	3wpy	nc107	1973	1:20000
Bibb soils, frequently flooded	BB	8590	115992	3wpp	nc107	1973	1:20000
Bibb loam, frequently flooded	Bb	22795	111119	3qmh	nc117	1985	1:24000
Johnston muck, 0 to 2 percent slopes, frequently flooded	JoA	480	2233588	2dz77	nc123	2007	1:24000
Bibb loam, 0 to 2 percent slopes, frequently flooded	Bb	9582	110892	3qd5	nc127	1984	1:24000
Johnston soils	JO	4886	116038	3wr5	nc129	1974	1:15840
Bibb complex	Bb	24783	114313	3tyj	nc147	1969	1:15840
Swamp (Johnston)	Sw	5551	114345	3tzk	nc147	1969	1:15840
Johnston mucky loam, 0 to 2 percent slopes, frequently flooded	JmA	11853	1402236	1j24f	nc153	1996	1:24000
Johnston soils	JT	75721	114768	3vf6	nc155	1972	1:20000
Bibb soils	BB	24080	114758	3vdw	nc155	1972	1:20000
Bibb and Johnston soils, frequently flooded	BH	42794	115041	3vq0	nc163	1982	1:24000
Johnston mucky loam	JT	22079	115053	3vqd	nc163	1982	1:24000
Johnston soils, 0 to 2 percent slopes, frequently flooded	JmA	12945	1408606	1j8rx	nc165	2006	1:12000
Pamlico and Johnston soils, 0 to 1 percent slopes, frequently flooded	PcA	8013	1414621	1jh0y	nc165	2006	1:12000
Bibb soils, 0 to 2 percent slopes, frequently flooded	BaA	2436	1408605	1j8rw	nc165	2006	1:12000
Bibb sandy loam	Bb	18809	116229	3wyb	nc191	1968	1:20000
Johnston loam	Js	12698	116238	3wym	nc191	1968	1:20000
Bibb loam, 0 to 2 percent slopes, frequently flooded	Bb	21014	116424	3x4m	nc195	1980	1:24000
Johnston sandy loam, 0 to 2 percent slopes, frequently flooded	JsA	6385	138116	4mqc	sc009	1997	1:24000
Johnston fine sandy loam, frequently flooded	Jo	6334	132328	4fpn	sc017	1993	1:24000
Johnston sandy loam, frequently flooded	Jo	31614	132020	4fcq	sc025	1989	1:20000
Portsmouth-Johnston association	PT	11167	132237	4flq	sc027	1972	1:20000
Johnston soils	JS	9151	132227	4fld	sc027	1972	1:20000
Johnston sandy loam, 0 to 2 percent slopes,frequently flooded	JoA	20763	619093	ns6r	sc031	1998	1:24000
Johnston-Rutlege association, frequently flooded	JR	18540	129751	4c0j	sc033	1976	1:20000
Wehadkee and Johnston soils, frequently flooded	Wn	31647	129993	4c8b	sc041	1969	1:20000
Johnston loam	34	13850	639587	pgjv	sc043	1980	1:20000
Johnston loam	Jo	51125	130150	4cfd	sc051	1983	1:20000
Johnston loam	Jo	58	2394348	2lcj1	sc057	1967	1:20000
Johnston muck, 0 to 2 percent slopes, frequently flooded	JoA	17194	1606571	1qxrw	sc061	2005	1:24000
Johnston-Mouzon complex, 0 to 2 percent slopes, frequently flooded	JzA	1842	1606573	1qxry	sc061	2005	1:24000
Johnston soils	JO	17841	130519	4ct9	sc063	1972	1:20000
Johnston association, frequently flooded	JN	14800	130569	4cvx	sc067	1975	1:20000
Johnston mucky loam, frequently flooded	Jo	1879	130638	4cy4	sc069	1995	1:24000
Johnston sandy loam	Js	34249	130890	4d68	sc075	1985	1:20000
Johnston loam	Jo	18047	131105	4df6	sc079	1976	1:20000
Johnston mucky sandy loam, 0 to 2 percent slopes, frequently flooded	JnA	22910	2485919	2pfsy	sc085	1969	1:20000
Johnston mucky sandy loam, 0 to 2 percent slopes, ponded	JoA	5144	2485921	2pft0	sc085	1969	1:20000
Johnston sandy loam, frequently flooded	Js	3704	131527	4dvt	sc089	1985	1:20000
Johnston loam	Jo	16732	130205	4ch5	sc610	1985	1:20000
Johnston mucky loam	Jo	24998	131756	4f36	sc615	1981	1:20000
Johnston soils, frequently flooded	JO	18908	1151488	17n6s	sc665	1973	1:24000
Johnston mucky loam, 0 to 2 percent slopes, frequently flooded	16A	5890	119666	40j6	va127	1985	1:15840
Johnston complex	17	5917	120807	41q0	va695	1981	1:15840
Johnston silt loam, 0 to 2 percent slopes, frequently flooded	12	727	122412	43cs	va715	1995	1:12000
Johnston mucky loam, 0 to 3 percent slopes, frequently flooded	21A	288	140096	4ps7	va760	2004	1:24000

Map of Series Extent

Approximate geographic distribution of the JOHNSTON 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).