Soil Data Explorer - RION

Official Series Description

Lab Data Summary

Aggregate lab data for the RION soil series. This aggregation is based on all pedons with a current taxon name of RION, 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 RION 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
136	88P0477	88NC157001	Rion	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	36.378334,-79.6905594

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the RION 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 RION series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot (updated 2024-10-24), parsed OSD records (updated 2025-02-20) and snapshot of SC database (updated 2025-02-20).

Select annual climate data summaries for the RION 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 2024-10-23).

Geomorphic description summaries for the RION 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 2024-10-23).

There are insufficient data to create the 3D mountains figure.

Competing Series

Soil series competing with RION share the same family level classification in Soil Taxonomy. Source: parsed OSD records (updated 2025-02-20) and snapshot of the SC database (updated 2025-02-20).

Select annual climate data summaries for the RION 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 2024-10-23).

Geomorphic description summaries for the RION 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 2024-10-23).

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

Soil series sharing subgroup-level classification with RION, 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 2025-02-20).

Block Diagrams

Click a link below to display the diagram. Note that these diagrams may be from multiple survey areas.

1. NC-2010-09-27-04 | Burke County - 2006

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

2. NC-2010-09-28-02 | Cleveland County - 2006

   The relationship between soils, landform, and parent material in the Pacolet-Bethlehem general soil map unit. The very deep Pacolet soils are in concave landform positions. They formed in residuum derived from schist or gneiss bedrock. The moderately deep Bethlehem soils are in convex landform positions. They formed in residuum derived from schist bedrock (Soil Survey of Cleveland County, North Carolina; 2006).

3. NC-2010-09-28-05 | Rutherford County - 1997

   Typical relationship of soils, landform position, and parent material in the Madison-Pacolet-Grover general soil map unit (Soil Survey of Rutherford County, North Carolina; 1997).

4. NC-2012-02-07-29 | Lincoln County - January 1995

   Relationship of soils and parent material in the Pacolet-Madison-Rion general soil map unit (Soil Survey of Lincoln County, North Carolina; January 1995).

5. NC-2012-02-07-38 | Polk County - 1998

   The relationship between soils, landscape, and parent material in the Pacolet-Madison-Rion general soil map unit. The clayey Pacolet, Madison, and Cecil soils occur on ridgetops. The loamy Rion, Grover, and Ashlar soils are on the adjacent side slopes (Soil Survey of Polk County, North Carolina; 1998).

6. NC-2012-02-07-39 | Polk County - 1998

   The relationship between soils, landscape, and parent material in the Riverview-Chewacla-Buncombe general soil map unit. The Buncombe soils are in convex areas adjacent to the stream channel; the Chewacla soils are in the lower, concave areas further from the channel; and the Riverview soils occur in the remaining areas of the flood plain. The clayey Masada, Dogue, and Roanoke soils are on the higher stream terraces (Soil Survey of Polk County, North Carolina; 1998).

Map Units

Map units containing RION 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
Pacolet-Rion complex, 6 to 15 percent slopes, moderately eroded, stony	PrD2	27790	1895733	2twx3	al037	2006	1:24000
Pacolet-Rion complex, 15 to 25 percent slopes, moderately eroded, stony	PrE2	16647	1895734	2twx2	al037	2006	1:24000
Louisburg-Rion-Rock outcrop complex, 15 to 35 percent slopes, very bouldery	LrE	15274	1895727	21mnh	al037	2006	1:24000
Louisburg-Rion-Rock outcrop complex, 6 to 15 percent slopes, very bouldery	LrD	5925	1895726	21mng	al037	2006	1:24000
Pacolet-Rion complex, 6 to 15 percent slopes, moderately eroded, stony	PrD2	64127	1476440	2twx3	al123	2005	1:24000
Pacolet-Rion complex, 15 to 25 percent slopes, moderately eroded, stony	PrE2	26459	1476439	2twx2	al123	2005	1:24000
Louisburg-Rion-Rock outcrop complex, 15 to 35 percent slopes, very bouldery	LrE	2730	1476425	1lkbm	al123	2005	1:24000
Louisburg-Rion-Rock outcrop complex, 6 to 15 percent slopes, very bouldery	LrD	2290	1476426	1lkbn	al123	2005	1:24000
Rion sandy loam, 10 to 15 percent slopes	RnD	806	2421713	2m8zs	ga015	2013	1:12000
Rion sandy loam, 15 to 25 percent slopes	RnE	546	2421752	2tfg2	ga015	2013	1:12000
Rion sandy loam, 6 to 10 percent slopes	RnC	105	2421712	2m8zr	ga015	2013	1:12000
Wateree-Rion complex, 10 to 25 percent slopes	LnE	3530	124206	2xpws	ga067	1969	1:15840
Ashlar-Rion complex, 25 to 55 percent slopes	LeF	845	124363	2xpwv	ga117	1957	1:20000
Ashlar-Rion complex, 15 to 25 percent slopes	LeE	535	124362	2xpwy	ga117	1957	1:20000
Ashlar-Rion complex, 2 to 15 percent slopes	LeC2	500	124361	2xpww	ga117	1957	1:20000
Rion sandy loam, 10 to 15 percent slopes	ReD	42215	1672352	2tffr	ga121	2007	1:12000
Urban land-Rion complex, 10 to 25 percent slopes	UrE	21320	1672421	1t492	ga121	2007	1:12000
Rion sandy loam, 15 to 25 percent slopes	ReE	10085	1654021	2tfg2	ga121	2007	1:12000
Rion-Louisburg complex, 10 to 20 percent slopes, bouldery	RoE	9455	1672350	1t46s	ga121	2007	1:12000
Rion-Louisburg complex, 20 to 35 percent slopes, bouldery	RoF	4320	1672351	1t46t	ga121	2007	1:12000
Ashlar-Rion complex, 6 to 25 percent slopes, stony	ArE	2420	1672354	1t46x	ga121	2007	1:12000
Urban land-Ashlar-Rion complex, 10 to 25 percent slopes, stony	UeE	1720	1654041	1sj55	ga121	2007	1:12000
Urban land-Rion-Louisburg complex, 10 to 25 percent slopes, bouldery	UsE	980	1672420	1t491	ga121	2007	1:12000
Ashlar, Rion, and Wateree soils, 10 to 25 percent slopes	ARE	10960	640009	pgzg	ga135	1966	1:15840
Rawlings and Rion soils, 2 to 10 percent slopes	RAC	6710	640007	pgzd	ga135	1966	1:15840
Rion and Bethlehem soils, 15 to 45 percent slopes, stony	RNF	2470	640004	pgz9	ga135	1966	1:15840
Rion sandy loam, 15 to 40 percent slopes	ReF	670	126976	4840	ga159	1997	1:24000
Rion sandy loam, 10 to 15 percent slopes	RnD	11635	2511217	2tffr	ga223	2010	1:12000
Rion sandy loam, 6 to 10 percent slopes	RnC	7340	2511216	1tjs7	ga223	2010	1:12000
Rion sandy loam, 15 to 25 percent slopes	RnE	7275	2511218	2tfg2	ga223	2010	1:12000
Wateree-Rion complex, 15 to 25 percent slopes	WnE	4205	2511224	218cy	ga223	2010	1:12000
Wateree-Rion complex, 10 to 15 percent slopes	WnD	2005	2511223	218cx	ga223	2010	1:12000
Wateree-Rion complex, 6 to 10 percent slopes	WnC	1555	2511222	218ct	ga223	2010	1:12000
Wateree-Rion complex, 15 to 25 percent slopes, bouldery	WeE	800	2511213	1tjqz	ga223	2010	1:12000
Wateree-Rion complex, 6 to 15 percent slopes, bouldery	WeD	490	2511214	1tjr0	ga223	2010	1:12000
Rion-Wateree complex, 10 to 25 percent slopes	LuE	11845	125319	2xn6j	ga606	1973	1:20000
Wateree-Rion-Rock outcrop complex, 2 to 15 percent slopes	WaD	3435	2639093	2rj4n	ga639	2012	1:24000
Rion-Ashlar-Wake complex, 10 to 25 percent slopes	RaE	5780	127117	488k	ga645	1995	1:12000
Rion-Wateree-Wake complex, 2 to 10 percent slopes	ReC	2350	127118	488l	ga645	1995	1:12000
Rion sandy loam, 15 to 35 percent slopes	ReE	800	127380	48k1	ga649	1992	1:12000
Rion sandy loam, 6 to 15 percent slopes	ReD	250	127379	48k0	ga649	1992	1:12000
Rion-Cliffside complex, 25 to 60 percent slopes, very stony	RsE	98	117021	3xrw	nc023	2000	1:24000
Rion-Cliffside complex, 25 to 60 percent slopes, very stony	RnE	1632	117093	3xv6	nc045	2000	1:24000
Rion-Ashlar complex, 25 to 60 percent slopes, rocky	RaE	817	117092	3xv5	nc045	2000	1:24000
Rion sandy loam, 15 to 45 percent slopes	RnD	1648	2440125	2mx4q	nc059	1988	1:24000
Rion sandy loam, 8 to 15 percent slopes	RnC	265	2440124	2mx4p	nc059	1988	1:24000
Wateree-Rion-Wedowee complex, 15 to 25 percent slopes	WcE	273	2433569	2mpb7	nc067	1970	1:15840
Wateree-Rion complex, 15 to 45 percent slopes	WaF	99	2433562	2mpb0	nc067	1970	1:15840
Wateree-Rion complex, 6 to 15 percent slopes	WaD	29	2433565	2mpb3	nc067	1970	1:15840
Ashlar-Rion complex, 15 to 45 percent slopes	AsF	27	2434002	2mps6	nc067	1970	1:15840
Wateree-Rion-Wedowee complex, 15 to 30 percent slopes	WdE	134	112625	3s62	nc069	1997	1:24000
Rion-Wateree-Wedowee complex, 8 to 15 percent slopes	ReD	80	112605	3s5f	nc069	1997	1:24000
Wateree-Rion-Wedowee complex, 15 to 30 percent slopes	WaE	821	112789	3scc	nc077	1993	1:24000
Rion-Wateree-Wedowee complex, 8 to 15 percent slopes	RwD	767	112782	3sc4	nc077	1993	1:24000
Rion sandy loam, 15 to 45 percent slopes	RiF	2391	2424368	2mcrf	nc097	2011	1:12000
Rion sandy loam, 8 to 15 percent slopes	RiD	175	2424367	2mcrd	nc097	2011	1:12000
Rion sandy loam, 15 to 40 percent slopes	RnF	3576	113554	3t51	nc101	1986	1:24000
Rion sandy loam, 2 to 8 percent slopes	RnB	1194	113644	3t7y	nc109	1989	1:24000
Rion sandy loam, 8 to 15 percent slopes	RnC	763	113645	3t7z	nc109	1989	1:24000
Rion sandy loam, 25 to 45 percent slopes	RoF	521	2439313	2mw9j	nc145	1987	1:24000
Rion sandy loam, 25 to 45 percent slopes	RnE	11559	111103	3qlz	nc149	1992	1:24000
Rion-Cliffside complex, 25 to 45 percent slopes, very stony	RtE	2521	111105	3qm1	nc149	1992	1:24000
Rion-Ashlar-Rock outcrop complex, 45 to 70 percent slopes	RoF	1624	111104	3qm0	nc149	1992	1:24000
Rion loamy sand, 8 to 15 percent slopes	RnC	1004	117461	3y72	nc151	1998	1:24000
Rion loamy sand, 15 to 25 percent slopes	RnD	542	117462	3y73	nc151	1998	1:24000
Rion-Wedowee complex, 2 to 8 percent slopes	RnB	4443	115010	3vp0	nc159	1996	1:24000
Rion-Wedowee-Ashlar complex, 2 to 8 percent slopes	RoB	4273	115012	3vp2	nc159	1996	1:24000
Rion-Wedowee complex, 8 to 15 percent slopes	RnC	3175	115011	3vp1	nc159	1996	1:24000
Rion-Wedowee-Ashlar complex, 8 to 15 percent slopes	RoC	1028	115013	3vp3	nc159	1996	1:24000
Rion sandy loam, 25 to 45 percent slopes	RaE	8758	117644	3ydz	nc161	1997	1:24000
Rion-Cliffside complex, 25 to 60 percent slopes, very stony	RnE	2247	117646	3yf1	nc161	1997	1:24000
Rion-Ashlar-Rock outcrop complex, 45 to 70 percent slopes	RcF	2114	117645	3yf0	nc161	1997	1:24000
Rawlings-Rion complex, 6 to 10 percent slopes	RgC	27434	3050268	2xhbb	nc183	1966	1:24000
Rawlings-Rion complex, 10 to 15 percent slopes	RgD	21254	3050266	2xhb8	nc183	1966	1:24000
Rawlings-Rion complex, 2 to 6 percent slopes	RgB	14852	3050267	2xhb9	nc183	1966	1:24000
Rion loamy sand, 15 to 40 percent slopes	RnF	5660	132201	4fkk	sc023	1977	1:20000
Wateree-Rion complex, 15 to 40 percent slopes	WaF	4575	132209	4fkt	sc023	1977	1:20000
Wateree-Rion complex, 6 to 15 percent slopes	WaD	1295	132208	4fks	sc023	1977	1:20000
Rion sandy loam, 15 to 40 percent slopes, very bouldery	RoF	3443	132039	4fdb	sc025	1989	1:20000
Rion sandy loam, 2 to 6 percent slopes	RnB	1614	132037	4fd8	sc025	1989	1:20000
Rion sandy loam, 6 to 15 percent slopes, very bouldery	RoD	1130	132038	4fd9	sc025	1989	1:20000
Wateree-Rion complex, 15 to 40 percent slopes	WaF	20815	129935	4c6g	sc039	1977	1:20000
Rion loamy sand, 15 to 40 percent slopes	RnF	11090	129925	4c64	sc039	1977	1:20000
Wateree-Rion complex, 6 to 15 percent slopes	WaD	9095	129934	4c6f	sc039	1977	1:20000
Rion gravelly sandy loam, 6 to 15 percent slopes	RoD	36	2394369	2lcjq	sc057	1967	1:20000
Rion gravelly sandy loam, 15 to 40 percent slopes	RoF	9	2394370	2lcjr	sc057	1967	1:20000
Rion sandy loam, 15 to 25 percent slopes, moderately eroded	RnE2	9978	639487	pgfm	sc071	2005	1:24000
Rion sandy loam, 10 to 15 percent slopes, moderately eroded	RnD2	5676	639486	pgfl	sc071	2005	1:24000
Rion sandy loam, 15 to 25 percent slopes, moderately eroded	47D2	4262	1459296	1kzj2	sc071	2005	1:24000
Rion sandy loam, 6 to 10 percent slopes, moderately eroded	RnC2	3186	639485	pgfk	sc071	2005	1:24000
Rion sandy loam, 25 to 50 percent slopes, moderately eroded	RnF2	1890	639488	pgfn	sc071	2005	1:24000
Rion sandy loam, 25 to 50 percent slopes, moderately eroded	47E2	1045	1459295	1kzj1	sc071	2005	1:24000
Rion sandy loam, 7 to 15 percent slopes, moderately eroded	47C2	1024	1459297	1kzj3	sc071	2005	1:24000
Rion sandy clay loam, 15 to 25 percent slopes, severely eroded	48D3	2	1459294	1kzj0	sc071	2005	1:24000
Rion sandy loam, 10 to 15 percent slopes	RnD	1578	2513862	2lq36	sc091	2013	1:15840
Rawlings-Rion complex, 6 to 10 percent slopes	RaC	1479	2513861	2lq35	sc091	2013	1:15840
Rion sandy loam, 15 to 25 percent slopes	RnE	1156	2513863	2lq37	sc091	2013	1:15840
Appling sandy loam, 15 to 30 percent slopes	ApE	445	130920	4d77	sc602	1960	1:20000
Rion gravelly sandy loam, 15 to 40 percent slopes	RoF	5251	130233	4cj2	sc610	1985	1:20000
Rion gravelly sandy loam, 6 to 15 percent slopes	RoD	2953	130232	4cj1	sc610	1985	1:20000
Rion-Ashlar sandy loam, 8 to 15 percent slopes	24C	12617	2420756	2m7zx	va025	2007	1:24000
Rion sandy loam, 2 to 8 percent slopes	23B	2257	2420754	2m7zv	va025	2007	1:24000
Rion sandy loam, 15 to 25 percent slopes	23D	1244	2420755	2m7zw	va025	2007	1:24000
Rion sandy loam, 15 to 25 percent slopes	17D	1157	121043	41ym	va033	1996	1:24000
Rion sandy loam, 15 to 25 percent slopes	923D	320	2453153	2nbpz	va135	1956	1:20000
Rion-Ashlar sandy loam, 8 to 15 percent slopes	924C	179	2453154	2nbq0	va135	1956	1:20000
Rion sandy loam, 2 to 8 percent slopes	923B	10	2453152	2nbpy	va135	1956	1:20000
Rion-Ashlar sandy loam, 8 to 15 percent slopes	924C	970	2481882	2p9lq	va653	1991	1:24000
Rion sandy loam, 15 to 25 percent slopes	923D	330	2481881	2p9lp	va653	1991	1:24000
Rion sandy loam, 2 to 8 percent slopes	923B	249	2481880	2p9ln	va653	1991	1:24000

Map of Series Extent

Approximate geographic distribution of the RION 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 2024-10-30).