Soil Data Explorer - ALO

Official Series Description

Lab Data Summary

Aggregate lab data for the ALO soil series. This aggregation is based on all pedons with a current taxon name of ALO, 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 ALO 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
n/a	71C0059	S1971CA059008	Alo	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	71C0060	S1971CA059009	ALO	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a

Water Balance

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

Competing Series

Soil series competing with ALO 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 ALO 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 ALO 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).

Soil series sharing subgroup-level classification with ALO, 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

No block diagrams are available.

Map Units

Map units containing ALO 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
Alo clay, 30 to 50 percent slopes, MLRA 15	AaF	4085	455757	2tyzm	ca013	1973	1:24000
Alo clay, 15 to 30 percent slopes	AaE	2750	455756	2y8sn	ca013	1973	1:24000
Alo clay, 50 to 75 percent slopes	AaG	635	455758	h97w	ca013	1973	1:24000
Alo-Millsholm complex	Ab	13000	455541	h90w	ca053	1972	1:24000
Alo silty clay, 30 to 50 percent slopes	AaF	10165	455540	h90v	ca053	1972	1:24000
Millsholm-Alo association	Mk	9700	455665	h94w	ca053	1972	1:24000
San Benito-Alo complex, 50 to 75 percent slopes, MLRA 15	SdG	8050	455716	2wv85	ca053	1972	1:24000
Alo silty clay, 15 to 30 percent slopes	AaE	5605	455539	h90t	ca053	1972	1:24000
Alo silty clay, 2 to 9 percent slopes	AaC	770	455537	h90r	ca053	1972	1:24000
Alo silty clay, 9 to 15 percent slopes	AaD	750	455538	h90s	ca053	1972	1:24000
Alo-Vaquero complex, 30 to 50 percent slopes, MLRA 15	104	4450	461996	2tyzl	ca077	1990	1:24000
Alo-Vaquero complex, 8 to 30 percent slopes, MLRA 15	103	2025	461995	2tyzk	ca077	1990	1:24000
Sehorn-Altamont complex, 15 to 30 percent slopes	305scl		2483676	2pcgl	ca609	1963	1:20000
Alo clay, 30 to 50 percent slopes, warm MAAT, MLRA 20	102	592	725837	2tyzn	ca638	1967	1:24000
Alo clay, 15 to 30 percent slopes, dry	101	1	757262	2y8sm	ca638	1967	1:24000
Alo-Altamont complex, 15 to 30 percent slopes	305	8371	1882923	216bg	ca641	2009	1:24000
Alo-Altamont complex, 30 to 50 percent slopes	306	1931	1882922	216bf	ca641	2009	1:24000
Kawenga-Alo complex, 20 to 40 percent slopes	307	1130	2027472	261rb	ca641	2009	1:24000
Urbanland-Altamont-Alo complex, 9 to 15 percent slopes	309	993	2425950	2mfdg	ca641	2009	1:24000
Urbanland-Altamont-Alo complex, 15 to 30 percent slopes	314	913	2425953	2mfdk	ca641	2009	1:24000
Alo-Altamont complex, 9 to 15 percent slopes	385	381	2425958	2mfdq	ca641	2009	1:24000
Alo-Vaquero complex, 30 to 50 percent slopes, MLRA 15	401	9480	466968	2tyzl	ca642	1998	1:24000
Alo-Vaquero complex, 8 to 30 percent slopes, MLRA 15	400	80	466967	2tyzk	ca642	1998	1:24000
Alo clay, 30 to 50 percent slopes, warm MAAT, MLRA 20	AaF	1080	457945	2tyzn	ca677	1972	1:24000
Alo clay, 15 to 30 percent slopes, dry	101oc	3	1483991	2y8sm	ca677	1972	1:24000
Alo clay, 15 to 30 percent slopes, dry	101	10930	458002	2y8sm	ca678	1974	1:24000
Alo clay, 30 to 50 percent slopes, warm MAAT, MLRA 20	102	10530	458003	2tyzn	ca678	1974	1:24000
Alo clay, 9 to 15 percent slopes	100	5445	458001	hcl7	ca678	1974	1:24000
Alo variant clay, 15 to 30 percent slopes	104	1165	458005	hclc	ca678	1974	1:24000
Alo variant clay, 30 to 50 percent slopes	105	620	458006	hcld	ca678	1974	1:24000
Alo variant clay, 9 to 15 percent slopes	103	240	458004	hclb	ca678	1974	1:24000
Alo clay, 9 to 15 percent slopes	100oc	20	2911730	hcl7	ca696	2016	1:24000

Map of Series Extent

Approximate geographic distribution of the ALO 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).