Soil Data Explorer - LOUISA

Official Series Description

Lab Data Summary

Aggregate lab data for the LOUISA soil series. This aggregation is based on all pedons with a current taxon name of LOUISA, 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 LOUISA 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
136	S92AL-123-4	S1992AL123004	Louisa	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	33.0547222,-85.695

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the LOUISA 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 LOUISA 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 LOUISA 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 LOUISA 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 LOUISA 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 LOUISA 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 LOUISA 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 LOUISA, 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. AL-2011-05-27-01 | Randolph County - 1967

   Representative pattern of soils and parent materials (Soil Survey of Randolph County, Alabama; 1967).

2. AL-2012-04-24-14 | Chambers County - June 1959

   Soil associations of Chambers County, Alabama (Soil Survey of Chambers County, Alabama; June 1959).

Map Units

Map units containing LOUISA 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
Louisa stony sandy loam, steep	LkF	1918	122747	43ql	al017	1957	1:20000
Louisa gravelly sandy loam, moderately steep and steep	LhE	1153	122746	43qk	al017	1957	1:20000
Madison-Louisa association, steep	MLS	25675	122803	43sd	al029	1974	1:24000
Madison-Louisa complex, 15 to 30 percent slopes, moderately eroded	MdE2	60920	1895730	2tx3s	al037	2006	1:24000
Louisa-Mountain Park complex, 30 to 50 percent slopes	LoF	17141	1895725	21mnf	al037	2006	1:24000
Louisa stony sandy loam, 15 to 40 percent slopes	LtE	79888	122856	2tfgy	al111	1965	1:15840
Louisa gravelly sandy loam, 15 to 40 percent slopes	LgE	50043	122849	43tw	al111	1965	1:15840
Louisa slaty loam, 15 to 40 percent slopes	LoE	21929	122851	43ty	al111	1965	1:15840
Louisa gravelly sandy loam, 10 to 15 percent slopes	LgD	7270	122848	43tv	al111	1965	1:15840
Louisa stony sandy clay loam, 15 to 40 percent slopes, eroded	LsE2	3024	122854	43v1	al111	1965	1:15840
Louisa stony sandy loam, 10 to 15 percent slopes	LtD	2910	122855	43v2	al111	1965	1:15840
Louisa stony sandy clay loam, 10 to 15 percent slopes, eroded	LsD2	1620	122853	43v0	al111	1965	1:15840
Louisa gravelly sandy loam, 6 to 10 percent slopes	LgC	1576	122847	43tt	al111	1965	1:15840
Louisa slaty loam, 10 to 15 percent slopes	LoD	1354	122850	43tx	al111	1965	1:15840
Louisa stony sandy clay loam, 6 to 10 percent slopes, eroded	LsC2	842	122852	43tz	al111	1965	1:15840
Madison-Louisa complex, 15 to 30 percent slopes, moderately eroded	MdE2	31930	1476430	2tx3s	al123	2005	1:24000
Louisa-Mountain Park complex, 30 to 50 percent slopes	LoF	1398	1476423	1lkbk	al123	2005	1:24000
Louisa soils, 25 to 60 percent slopes	LNF	3758	124204	457l	ga067	1969	1:15840
Louisa gravelly sandy loam, 10 to 25 percent slopes	LkE	3597	124205	457m	ga067	1969	1:15840
Louisa fine sandy loam, 15 to 25 percent slopes	LjE	10500	126256	47cs	ga097	1960	1:15840
Louisa fine sandy loam, 25 to 40 percent slopes	LjF	6400	126258	47cv	ga097	1960	1:15840
Louisa fine sandy loam, 15 to 25 percent slopes, eroded	LjE2	2120	126257	47ct	ga097	1960	1:15840
Louisa fine sandy loam, 10 to 15 percent slopes, eroded	LjD2	1195	126255	47cr	ga097	1960	1:15840
Louisa fine sandy loam, 10 to 15 percent slopes	LjD	970	126254	47cq	ga097	1960	1:15840
Louisa fine sandy loam, steep phase	LcF	1585	124359	45dl	ga117	1957	1:20000
Louisa fine sandy loam, moderately steep phase	LcE	465	124358	45dk	ga117	1957	1:20000
Louisa fine sandy clay loam, severely eroded moderately steep phase	LdE3	445	124360	45dm	ga117	1957	1:20000
Louisa fine sandy loam, eroded sloping phase	LcD2	265	124357	45dj	ga117	1957	1:20000
Louisa fine sandy loam, eroded gently sloping phase	LcC2	235	124356	45dh	ga117	1957	1:20000
Louisa fine sandy loam, 25 to 60 percent slopes	LjF	4830	124516	45kn	ga137	1960	1:20000
Louisa fine sandy loam, 15 to 25 percent slopes	LjE	1755	124515	45km	ga137	1960	1:20000
Louisa fine sandy loam, 60 to 90 percent slopes	LjG	1020	124517	45kp	ga137	1960	1:20000
Louisa fine sandy clay loam, 15 to 25 percent slopes, severely eroded	LkE3	275	124518	45kq	ga137	1960	1:20000
Louisa fine sandy loam, 15 to 25 percent slopes	LjE	1349	124597	45n8	ga147	1961	1:20000
Louisa fine sandy loam, 6 to 15 percent slopes	LjD	719	124596	45n7	ga147	1961	1:20000
Louisa coarse sandy loam, 15 to 25 percent slopes	LEE	1360	124714	45s1	ga199	1960	1:15840
Louisa coarse sandy loam, 10 to 15 percent slopes	LED	580	124713	45s0	ga199	1960	1:15840
Louisa coarse sandy loam, 6 to 10 percent slopes	LEC	265	124712	45rz	ga199	1960	1:15840
Louisa fine sandy loam, 15 to 45 percent slopes	LjF	465	125051	463x	ga297	1962	1:15840
Madison-Louisa-Tallapoosa complex, 25 to 60 percent slopes	MAF	10380	125273	46c2	ga605	1967	1:15840
Louisa-Tallapoosa complex, 10 to 25 percent slopes	LOE	1835	125269	46by	ga605	1967	1:15840
Louisa gravelly fine sandy loam, 15 to 40 percent slopes	LkE	20245	125446	2tx3d	ga618	1966	1:15840
Louisa gravelly fine sandy loam, 10 to 15 percent slopes	LkD	3005	125445	46jm	ga618	1966	1:15840
Louisa gravelly fine sandy loam, 6 to 10 percent slopes	LkC	795	125444	46jl	ga618	1966	1:15840
Madison-Louisa complex, 15 to 25 percent slopes, eroded	MmE2	1795	125498	46lb	ga623	1965	1:15840
Madison-Louisa complex, 10 to 15 percent slopes, eroded	MmD2	315	125497	46l9	ga623	1965	1:15840
Madison-Louisa complex, 6 to 10 percent slopes, eroded	MmC2	30	125496	46l8	ga623	1965	1:15840
Louisa gravelly fine sandy loam, 15 to 40 percent slopes	LoF	14760	125612	2tx3d	ga629	1976	1:20000
Louisa gravelly fine sandy loam, 6 to 15 percent slopes	LoD	2285	125611	46pz	ga629	1976	1:20000
Louisa gravelly loam, 10 to 30 percent slopes	LoE	3211	125728	46tr	ga636	1975	1:20000
Louisa sandy loam, 25 to 45 percent slopes	LsF	102	1485598	1lvwj	nc037	2005	1:24000
Louisa fine sandy loam, 25 to 45 percent slopes	LoF	2779	113112	3sps	nc085	1984	1:24000
Louisa fine sandy loam, 15 to 35 percent slopes	LoF	1065	118747	3zkk	va037	1970	1:15840
Louisa and Louisburg soils, 15 to 25 percent slopes, severely eroded	LsE3	656	118748	3zkl	va037	1970	1:15840
Louisa fine sandy loam, 6 to 15 percent slopes	LoD	442	118746	3zkj	va037	1970	1:15840
Louisa loam, variant, 20 to 45 percent slopes	505F	260	118911	3zqv	va041	1974	1:15840
Louisa loam, variant, 12 to 20 percent slopes	505D	148	118910	3zqt	va041	1974	1:15840
Louisa loam, hilly and steep phases	Lg	661	121802	42r3	va065	1950	1:15840
Louisa loam, rolling phase	Lh	212	121803	42r4	va065	1950	1:15840
Louisa fine sandy loam, eroded hilly phase	Lg	2195	120264	414h	va147	1950	1:20000
Louisa fine sandy loam, eroded rolling phase	Lh	1405	120265	414j	va147	1950	1:20000
Louisa fine sandy loam, eroded undulating phase	Ll	997	120267	414l	va147	1950	1:20000
Louisa fine sandy loam, eroded steep phase	Lk	579	120266	414k	va147	1950	1:20000
Louisa fine sandy loam, severely eroded hilly phase	Lm	419	120268	414m	va147	1950	1:20000
Louisa fine sandy loam, severely eroded steep phase	Ln	181	120269	414n	va147	1950	1:20000

Map of Series Extent

Approximate geographic distribution of the LOUISA 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).