Soil Data Explorer - PORTERS

Official Series Description

Lab Data Summary

Aggregate lab data for the PORTERS soil series. This aggregation is based on all pedons with a current taxon name of PORTERS, 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 PORTERS 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
130B	85P0637	85NC113021	Porters	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	35.0927773,-83.5233307

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the PORTERS 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 PORTERS 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 PORTERS 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 PORTERS 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 terrace figure.

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

Competing Series

Soil series competing with PORTERS 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 PORTERS 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 PORTERS 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 PORTERS, 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. GA-2011-05-31-01 | Habersham County - 1963

   Location of some soil series in relation to their parent materials (Soil Survey of Habersham County, Georgia; 1963).

2. SC-2012-03-14-31 | Oconee County - February 1963

   Cross section showing relation of soils to physiography in Oconee County (Soil Survey of Oconee County, SC; 1963).

Map Units

Map units containing PORTERS 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
Porters loam, 25 to 60 percent slopes	PcF	3955	124546	45lm	ga137	1960	1:20000
Porters-Ashe stony loams, 60 to 95 percent slopes	PAG	1770	124543	45lj	ga137	1960	1:20000
Porters-Ashe stony loams, 25 to 60 percent slopes	PAF	1355	124542	45lh	ga137	1960	1:20000
Porters loam, 60 to 80 percent slopes	PcG	955	124547	45ln	ga137	1960	1:20000
Porters loam, 15 to 25 percent slopes	PcE	600	124545	45ll	ga137	1960	1:20000
Porters loam, 10 to 15 percent slopes	PcD	385	124544	45lk	ga137	1960	1:20000
Porters-Ashe stony loams, 15 to 25 percent slopes	PAE	150	124541	45lg	ga137	1960	1:20000
Porters loam, 6 to 15 percent slopes	PcD	995	531357	ktxk	ga622	1967	1:20000
Edneyville and Porters loams, 25 to 60 percent slopes	EPF	16670	125653	46rb	ga632	1967	1:15840
Edneyville and Porters loams, 15 to 25 percent slopes	EPE	4950	125652	46r9	ga632	1967	1:15840
Edneyville and Porters loams, 10 to 15 percent slopes	EPD	1210	125651	46r8	ga632	1967	1:15840
Edneyville and Porters loams, 60 to 80 percent slopes	EPG	610	125654	46rc	ga632	1967	1:15840
Porters loam, 25 to 45 percent slopes, stony	PsF	18595	531780	kvc6	ga637	1990	1:20000
Porters loam, 45 to 60 percent slopes, stony	PsG	8725	531781	kvc7	ga637	1990	1:20000
Saunook-Porters complex, 45 to 60 percent slopes, stony	SpG	7200	531786	kvcd	ga637	1990	1:20000
Porters-Rock outcrop complex, 60 to 90 percent slopes	PxH	1940	531782	kvc8	ga637	1990	1:20000
Porters association, stony, steep	PCF	22680	531399	ktyx	ga651	1976	1:20000
Porters association, stony, very steep	PCG	10900	531400	ktyy	ga651	1976	1:20000
Ashe-Porters association, moderately steep	ACE	5000	531383	ktyd	ga651	1976	1:20000
Porters stony loam, 25 to 45 percent slopes	PsF	3520	545921	lb2c	nc005	1967	1:15840
Porters stony loam, 45 to 65 percent slopes	PsG	2477	545922	lb2d	nc005	1967	1:15840
Porters loam, 25 to 45 percent slopes	PoF	1239	545919	lb29	nc005	1967	1:15840
Porters loam, 10 to 25 percent slopes	PoE	1025	545918	lb28	nc005	1967	1:15840
Porters stony loam, 10 to 25 percent slopes	PsE	823	545920	lb2b	nc005	1967	1:15840
Porters stony loam, 25 to 65 percent slopes	PsF	28085	545956	lb3h	nc009	1982	1:24000
Porters stony loam, 15 to 25 percent slopes	PsE	3018	545955	lb3g	nc009	1982	1:24000
Porters gravelly loam, 30 to 50 percent slopes, stony	PuE	10822	548090	ldbb	nc011	1997	1:12000
Unaka-Porters complex, 30 to 50 percent slopes, very rocky	UnE	6898	548120	ldc9	nc011	1997	1:12000
Unaka-Porters complex, 50 to 95 percent slopes, very rocky	UnF	5801	548121	ldcb	nc011	1997	1:12000
Porters gravelly loam, 15 to 30 percent slopes, stony	PuD	5455	548089	ldb9	nc011	1997	1:12000
Unaka-Porters complex, 15 to 30 percent slopes, very rocky	UnD	2082	548119	ldc8	nc011	1997	1:12000
Porters gravelly loam, 50 to 80 percent slopes, stony	PuF	458	548091	ldbc	nc011	1997	1:12000
Porters gravelly loam, 8 to 15 percent slopes, stony	PuC	332	548088	ldb8	nc011	1997	1:12000
Porters loam, 30 to 50 percent slopes, stony	PwE	62	557355	lpz6	nc011	1997	1:12000
Porters loam, 15 to 30 percent slopes, stony	PwD	18	557354	lpz5	nc011	1997	1:12000
Porters-Unaka complex, 50 to 95 percent slopes, rocky	PxF	11000	1672066	1t3xm	nc021	2006	1:12000
Porters-Unaka complex, 30 to 50 percent slopes, stony	PwE	7333	1672065	1t3xl	nc021	2006	1:12000
Porters-Unaka complex, 15 to 30 percent slopes, stony	PwD	2020	1672064	1t3xk	nc021	2006	1:12000
Porters-Unaka complex, 8 to 15 percent slopes, stony	PwC	205	1672067	1t3xn	nc021	2006	1:12000
Unaka-Porters complex, 50 to 95 percent slopes, very rocky	UkF	254	2679267	2r93z	nc027	2012	1:12000
Unaka-Porters complex, 30 to 50 percent slopes, very rocky	UkE	143	2679266	2r93y	nc027	2012	1:12000
Unaka-Porters complex, 15 to 30 percent slopes, very rocky	UkD	93	2679265	2r93x	nc027	2012	1:12000
Porters stony loam, 25 to 45 percent slopes	PoF	2213	546869	lc1y	nc089	1974	1:20000
Porters stony loam, 45 to 70 percent slopes	PoG	1603	546870	lc1z	nc089	1974	1:20000
Porters stony loam, 15 to 25 percent slopes	PoE	1009	546868	lc1x	nc089	1974	1:20000
Porters-Unaka complex, 30 to 50 percent slopes, stony	761E	877	2509256	2p7qy	nc089	1974	1:20000
Porters-Unaka complex, 15 to 30 percent slopes, stony	761D	77	2509255	2p7qx	nc089	1974	1:20000
Porters-Unaka complex, windswept, 50 to 95 percent slopes, rocky	765F	28	2509285	2p7yt	nc089	1974	1:20000
Porters-Unaka complex, windswept, 30 to 50 percent slopes, stony	765E	8	2509284	2p7ys	nc089	1974	1:20000
Porters-Unaka complex, windswept, 8 to 15 percent slopes, stony	765C	7	2509286	2p7yv	nc089	1974	1:20000
Porters-Unaka complex, 8 to 15 percent slopes, stony	761C	4	2509257	2p7r0	nc089	1974	1:20000
Porters-Unaka complex, windswept, 15 to 30 percent slopes, stony	765D	3	2509283	2p7yr	nc089	1974	1:20000
Porters loam, 25 to 80 percent slopes, stony	PoF	1795	547213	lcf1	nc111	1989	1:24000
Porters loam, 6 to 25 percent slopes, stony	PoD	471	547212	lcf0	nc111	1989	1:24000
Porters-Unaka complex, 50 to 95 percent slopes, rocky	PxF	9431	1671421	1t37t	nc115	2006	1:12000
Porters-Unaka complex, 30 to 50 percent slopes, stony	PwE	7244	1671420	1t37s	nc115	2006	1:12000
Porters-Unaka complex, 15 to 30 percent slopes, stony	PwD	2338	1671419	1t37r	nc115	2006	1:12000
Porters-Unaka complex, 8 to 15 percent slopes, stony	PwC	146	1671418	1t37q	nc115	2006	1:12000
Porters-Unaka complex, 30 to 50 percent slopes, stony	761E	4782	2501831	2q8kw	nc175	1968	1:12000
Unaka-Porters complex, 50 to 95 percent slopes, very rocky	BrG	981	2390360	2l7cd	nc175	1968	1:12000
Porters-Unaka complex, 15 to 30 percent slopes, stony	761D	845	2501830	2q8kv	nc175	1968	1:12000
Porters loam, 30 to 50 percent slopes, stony	PoF	265	2390389	2l7db	nc175	1968	1:12000
Porters-Unaka complex, 30 to 50 percent slopes, rocky	PrF	148	2390390	2l7dc	nc175	1968	1:12000
Porters-Unaka complex, windswept, 15 to 30 percent slopes, stony	765D	122	2501860	2q8kz	nc175	1968	1:12000
Porters-Unaka complex, windswept, 30 to 50 percent slopes, stony	765E	76	2501861	2q8l0	nc175	1968	1:12000
Porters-Unaka complex, 8 to 15 percent slopes, stony	761C	52	2501832	2q8kx	nc175	1968	1:12000
Unaka-Porters complex 30 to 50 percent slopes, very rocky	BrF	32	2390359	2l7cc	nc175	1968	1:12000
Porters-Unaka complex, windswept, 50 to 95 percent slopes, rocky	765F	19	2501862	2q8l1	nc175	1968	1:12000
Porters-Unaka complex, windswept, 8 to 15 percent slopes, stony	765C	18	2501863	2q8l2	nc175	1968	1:12000
Porters loam, 15 to 30 percent slopes, stony	PoE	3	2390388	2l7d9	nc175	1968	1:12000
Porters loam, 30 to 50 percent slopes, stony	PuE	12032	563354	lx6q	nc189	2001	1:12000
Unaka-Porters complex, 30 to 50 percent slopes, very rocky	UkE	11930	563219	lx2c	nc189	2001	1:12000
Porters loam, 15 to 30 percent slopes, stony	PuD	4382	563352	lx6n	nc189	2001	1:12000
Unaka-Porters complex, 15 to 30 percent slopes, very rocky	UkD	4319	563218	lx2b	nc189	2001	1:12000
Unaka-Porters complex, 50 to 95 percent slopes, very rocky	UkF	3395	563235	lx2w	nc189	2001	1:12000
Porters loam, 50 to 95 percent slopes, stony	PuF	971	563362	lx6z	nc189	2001	1:12000
Porters loam, 8 to 15 percent slopes, stony	PuC	928	563339	lx67	nc189	2001	1:12000
Unaka-Porters complex, 8 to 15 percent slopes, very rocky	UkC	451	563217	lx29	nc189	2001	1:12000
Porters loam, 15 to 25 percent slopes, stony	PwD	100	1383497	1hfmy	nc193	1993	1:24000
Porters-Unaka complex, 50 to 95 percent slopes, rocky	PwF	17549	547860	ld2x	nc199	1997	1:12000
Porters-Unaka complex, 30 to 50 percent slopes, stony	PuE	3958	547859	ld2w	nc199	1997	1:12000
Porters-Unaka complex, 15 to 30 percent slopes, stony	PuD	884	547858	ld2v	nc199	1997	1:12000
Porters-Unaka complex, 8 to 15 percent slopes, stony	PuC	195	547857	ld2t	nc199	1997	1:12000
Porters-Unaka complex, windswept, 30 to 50 percent slopes, stony	765E	56	2509086	2q1wb	nc606	1991	1:12000
Porters-Unaka complex, 30 to 50 percent slopes, stony	761E	47	2509058	2q1w8	nc606	1991	1:12000
Porters-Unaka complex, windswept, 50 to 95 percent slopes, rocky	765F	22	2509087	2q1wq	nc606	1991	1:12000
Porters-Unaka complex, windswept, 15 to 30 percent slopes, stony	765D	1	2509085	2q1w9	nc606	1991	1:12000
Porters loam, 15 to 40 percent slopes	PrF	454	132508	4fwg	sc045	1972	1:20000
Porters loam, 40 to 70 percent slopes	PrG	388	132509	4fwh	sc045	1972	1:20000
Porters loam, 6 to 15 percent slopes	PrD	297	132507	4fwf	sc045	1972	1:20000
Porters stony loam, 25 to 45 percent slopes	PsF	355	130996	4d9p	sc602	1960	1:20000
Porters loam, 25 to 45 percent slopes	PoF	272	130995	4d9n	sc602	1960	1:20000
Stony land	St	182	130998	4d9r	sc602	1960	1:20000
Porters gravelly loam, 50 to 80 percent slopes, stony	PnF	5574	526480	knv7	tn019	2000	1:24000
Porters gravelly loam, 30 to 50 percent slopes, stony	PnE	1328	526479	knv6	tn019	2000	1:24000
Porters gravelly loam, 15 to 30 percent slopes, stony	PnD	786	526478	knv5	tn019	2000	1:24000
Porters loam, 15 to 30 percent slopes, stony	PoE	297	526551	knxj	tn091	2000	1:24000
Porters stony loam, 25 to 65 percent slopes	PsF	239	526553	knxl	tn091	2000	1:24000
Unaka-Porters complex, 35 to 50 percent slopes	110F	587	2401344	2llsq	tn171	1980	1:24000
Porters loam, 20 to 35 percent slopes	PsE	289	524825	km3v	tn606	2001	1:24000
Porters-Unaka complex, 15 to 30 percent slopes, stony	PuD	264	524851	km4p	tn606	2001	1:24000
Porters loam, 35 to 50 percent slopes	PsF	194	524826	km3w	tn606	2001	1:24000
Porters-Unaka complex, 30 to 50 percent slopes, stony	PuE	17	524852	km4q	tn606	2001	1:24000
Porters very stony loam, 25 to 45 percent slopes	70E	1800	516449	kbdn	va003	1981	1:15840
Porters very stony loam, 15 to 25 percent slopes	70D	280	516448	kbdm	va003	1981	1:15840
Porters very stony loam, 7 to 15 percent slopes	70C	210	516447	kbdl	va003	1981	1:15840
Porters loam, steep	PoE	8521	519271	kfbp	va035	1965	1:15840
Porters loam, moderately steep	PoD	4129	519270	kfbn	va035	1965	1:15840
Porters loam, sloping	PoC	1513	519269	kfbm	va035	1965	1:15840
Porters loam, very steep	PoF	861	519272	kfbq	va035	1965	1:15840
Unaka-Porters complex, 15 to 35 percent slopes	47D	213	1914817	228j9	va063	2007	1:24000
Unaka-Porters complex, 8 to 15 percent slopes	47C	187	1914816	228j8	va063	2007	1:24000
Trimont-Porters complex, 45 to 95 percent slopes, very stony	37F	2130	582045	mjnn	va067	2004	1:24000
Trimont-Porters complex, 25 to 45 percent slopes, very stony	37E	737	582044	mjnm	va067	2004	1:24000
Porters very stony loam, 25 to 50 percent slopes	PoF	12106	517038	kc0n	va113	1967	1:15840
Porters very stony loam, 15 to 25 percent slopes	PoD	2333	517037	kc0m	va113	1967	1:15840
Porters very stony loam, 7 to 15 percent slopes	PoC	527	517036	kc0l	va113	1967	1:15840
Porters stony loam, steep phase	PoE	2929	517457	kcg5	va157	1958	1:20000
Porters stony loam, moderately steep phase	PoD	980	517456	kcg4	va157	1958	1:20000
Porters stony loam, sloping phase	PoC	872	517455	kcg3	va157	1958	1:20000
Porters stony loam, gently sloping phase	PoB	140	517454	kcg2	va157	1958	1:20000
Porters stony loam, 15 to 35 percent slopes	51D	757	2525250	2qm1j	va606		1:24000
Porters stony loam, 35 to 60 percent slopes, extremely stony	51E	493	2525251	2qm1k	va606		1:24000
Porters stony loam, 6 to 15 percent slopes	51C	465	2525249	2qm1h	va606		1:24000
Porters-Rock outcrop complex, 15 to 35 percent slopes, rubbly	25E	57	3086816	2yn82	va850		1:24000

Map of Series Extent

Approximate geographic distribution of the PORTERS 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).