Soil Data Explorer - IZO

Official Series Description

Lab Data Summary

Aggregate lab data for the IZO soil series. This aggregation is based on all pedons with a current taxon name of IZO, 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 IZO were used in the calculation. Source: KSSL snapshot (updated 2020-03-13). Methods used to assemble the KSSL snapshot used by SoilWeb / SDE

There are insufficient data to create the lab data summary figure.

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the IZO 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 IZO 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 IZO 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 IZO 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 IZO 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 IZO 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 IZO 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 mountains figure.

Soil series sharing subgroup-level classification with IZO, 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. NV-2012-05-09-18 | Mineral County Area - October 1991

   Appearance of some detailed soil map units as they occur in various positions on the landscape (Soil Survey of Mineral County Area, Nevada; October 1991).

2. NV-2012-05-09-19 | Mineral County Area - October 1991

   Landscape positions of each major soil component identified within the respective map units (Soil Survey of Mineral County Area, Nevada; October 1991).

Map Units

Map units containing IZO 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
Cliffdown-Izo families complex, 2 to 8 percent slopes	25	105	615912	nnx4	az701	2001	1:24000
Bluewing-Izo complex, 5-15% slopes	1002	681	3356321	2zzg5	ca763	1984	1:24000
Stonell-Wardenot-Izo association	482	323	3356315	312sl	ca763	1984	1:24000
Itme-Izo association	126	11227	3271037	j8lq	ca806		1:24000
Bluewing-Izo complex, 5-15% slopes	1002	8276	3271051	2zzg5	ca806		1:24000
Stonell-Wardenot-Izo association	482	5335	3271063	312sl	ca806		1:24000
Wardenot-Izo association	442	2104	3271039	2s220	ca806		1:24000
Maggie-Pintwater-Izo association	MA	7338	495597	2v417	nv622	1972	1:24000
Unsel-Izo complex	UT	10	3059654	2whn5	nv622	1972	1:24000
Izo-Misad association	200	11765	479082	j2j8	nv768	1985	1:63360
Izo-Bubus association	201	1545	479084	j2jb	nv768	1985	1:63360
Unsel-Annnaw-Izo association	1020	6016	476383	2s21z	nv770	1995	1:24000
Terlco-Annaw-Izo association	1040	2709	476392	2s21y	nv770	1995	1:24000
Luning-Izo association	710	37	476652	hzzw	nv770	1995	1:24000
Oricto-Gynelle-Izo association	5100	58233	476992	2xdmz	nv774	1985	1:24000
Gynelle-Izo association	1155	43603	476724	j026	nv774	1985	1:24000
Candelaria-Wardenot-Izo association	4181	27601	476962	j09w	nv774	1985	1:24000
Wardenot-Truhoy-Izo association	1894	17593	476830	j05m	nv774	1985	1:24000
Unsel-Annnaw-Izo association	1643	16679	476797	2s21z	nv774	1985	1:24000
Wardenot, moist-Izo association	1892	16034	476828	j05k	nv774	1985	1:24000
Izo, rarely flooded-Izo association	1910	13963	476832	j05p	nv774	1985	1:24000
Oricto-Izo association	5101	12431	476993	2s23p	nv774	1985	1:24000
Candelaria-Izo association	4180	11552	476961	j09v	nv774	1985	1:24000
Terlco-Annaw-Izo association	4162	11155	476949	2s21y	nv774	1985	1:24000
Candelaria-Gynelle-Izo association	4182	10837	476963	2v42w	nv774	1985	1:24000
Wardenot-Izo association	1891	10033	476827	2s220	nv774	1985	1:24000
Luning-Izo association	1877	8037	476823	2s23t	nv774	1985	1:24000
Belted-Izo association	1323	6893	476752	j033	nv774	1985	1:24000
Belted-Terlco-Izo association	1325	5294	476754	j035	nv774	1985	1:24000
Sodaspring-Izo association	2002	5284	476845	2v41q	nv774	1985	1:24000
Terlco-Izo association, moderately steep	4163	4727	476950	j09h	nv774	1985	1:24000
Smedley-Annaw-Izo association	3061	4560	476889	j07j	nv774	1985	1:24000
Candelaria, dry-Izo association	4184	4530	476965	2s22d	nv774	1985	1:24000
Wardenot-Annaw-Izo association, moist	1893	4379	476829	2s22f	nv774	1985	1:24000
Wardenot, moderately steep-Wardenot-Izo association	1890	3284	476826	j05h	nv774	1985	1:24000
Candelaria-Izo, rarely flooded, association	4183	2661	476964	j09y	nv774	1985	1:24000
Fawin-Izo association	1482	2552	476779	j03z	nv774	1985	1:24000
Candelaria-Roic-Izo association	4186	2524	476967	j0b1	nv774	1985	1:24000
Hawsley-Izo association	1173	2096	476728	j02b	nv774	1985	1:24000
Typic Torriorthents, 15 to 75 percent slopes	1940	2029	476835	j05s	nv774	1985	1:24000
Terlco-Izo association	4161	2019	476948	j09f	nv774	1985	1:24000
Wardenot-Stumble-Izo association	1897	2014	476831	j05n	nv774	1985	1:24000
Truhoy gravelly loamy sand, 2 to 8 percent slopes	4062	1445	476927	j08r	nv774	1985	1:24000
Lathrop-Terlco-Izo association	1950	929	476836	2whm6	nv774	1985	1:24000
Gynelle-Izo association, strongly sloping	1156	892	476725	j027	nv774	1985	1:24000
Celeton-Dumps-Izo association	6020	153	477002	j0c5	nv774	1985	1:24000
Unsel-Annnaw-Izo association	1142	15898	480694	2s21z	nv781	1994	1:24000
Unsel-Wardenot-Izo association	1141	11112	480693	2s239	nv781	1994	1:24000
Unsel-Silverbow-Izo association	1146	3346	480697	j46c	nv781	1994	1:24000
Oricto-Izo association	1291	2815	480726	2s23p	nv781	1994	1:24000
Stonell-Wardenot-Izo association	1930	2504	480833	2s21x	nv781	1994	1:24000
Luning-Izo association	2111	2429	480846	2s23t	nv781	1994	1:24000
Terlco-Annaw-Izo association	1323	1625	480735	2s21y	nv781	1994	1:24000
Maggie-Pintwater-Izo association	2080	1475	480842	2v417	nv781	1994	1:24000
Leo-Izo association	1704	1058	480804	j49t	nv781	1994	1:24000
Izo very gravelly sand, 2 to 8 percent slopes	1820	607	480817	j4b7	nv781	1994	1:24000
Pintwater-Izo association	1950	95	480834	j4bs	nv781	1994	1:24000
Unsel-Izo association	3139	2883	480916	2s23d	nv783	1991	1:24000
Lidan-Izo association	2540	5958	469178	hr6s	nv785	1995	1:24000
Ardivey-Stonell-Izo association	2671	5754	469191	hr76	nv785	1995	1:24000
Stonell-Wardenot-Izo association	2660	3918	469189	2s21x	nv785	1995	1:24000
Luning-Wardenot-Izo association	2650	2730	469188	hr73	nv785	1995	1:24000
Vigus-Fuegosta-Izo association	2520	2424	469174	hr6n	nv785	1995	1:24000
Stonewall-Izo-Lidan association	2550	1892	469179	hr6t	nv785	1995	1:24000
Ardivey-Izo association	2670	1433	469190	2s22r	nv785	1995	1:24000
Wardenot-Izo association	2580	1336	469181	2s220	nv785	1995	1:24000
Leo-Izo association	2690	1269	469195	hr7b	nv785	1995	1:24000
Fuegosta-Tomel-Izo association	2510	818	469172	hr6l	nv785	1995	1:24000
Fuegosta-Wardenot-Izo association	2511	564	469173	hr6m	nv785	1995	1:24000
Silverbow-Wardenot-Izo association	2750	457	469207	hr7q	nv785	1995	1:24000
Unsel-Wardenot-Izo association	101	95413	484883	2s239	nv796	1984	1:63360
Stonell-Wardenot-Izo association, moist	480	34608	485065	j8r8	nv796	1984	1:63360
Unsel-Izo association	108	24271	484899	2s23d	nv796	1984	1:63360
Wardenot-Izo association	442	18489	485043	2s220	nv796	1984	1:63360
Stonell-Wardenot-Izo association	482	13653	485067	2s21x	nv796	1984	1:63360
Wardenot-Annaw-Izo association	446	12799	485047	j8qp	nv796	1984	1:63360
Itme-Izo association	126	11480	484924	j8lq	nv796	1984	1:63360
Ardivey-Wardenot-Izo association	476	10850	485063	j8r6	nv796	1984	1:63360
Lyda-Ardivey-Izo association	780	10000	485145	j8tv	nv796	1984	1:63360
Silverbow-Wardenot-Izo association	510	9834	485073	2v41p	nv796	1984	1:63360
Yomba-Wardenot-Izo association	161	8361	484936	j8m3	nv796	1984	1:63360
Fuegosta-Tomel-Izo association	920	6462	485172	j8vq	nv796	1984	1:63360
Sodaspring-Izo association	990	6236	485183	2v41q	nv796	1984	1:63360
Wardenot-Annaw-Izo association, moist	447	5591	485048	2s22f	nv796	1984	1:63360
Papoose-Izo association	1034	5355	484892	j8kp	nv796	1984	1:63360
Ardivey-Tomel-Izo association	475	4826	485062	j8r5	nv796	1984	1:63360
Lathrop-Terlco-Izo association	273	4616	484976	2whm6	nv796	1984	1:63360
Ardivey-Izo association	471	4010	485059	2s22r	nv796	1984	1:63360
Unsel-Silverbow-Izo association	103	4010	484887	j8kj	nv796	1984	1:63360
Noyson-Stumble-Izo association	390	3562	485027	j8q1	nv796	1984	1:63360
Candelaria, dry-Izo association	334	2591	485002	2s22d	nv796	1984	1:63360
Leo-Izo association	122	1931	484922	j8ln	nv796	1984	1:63360
Vigus-Fuegosta-Izo association	421	1878	485036	2v426	nv796	1984	1:63360
Candelaria-Gynelle-Izo association	331	1693	485001	2v42w	nv796	1984	1:63360
Stumble-Belcher-Izo association	141	1363	484930	j8lx	nv796	1984	1:63360
Vigus-Unsel-Izo association	420	562	485035	j8q9	nv796	1984	1:63360
Celeton-Dumps-Izo association	520	457	485075	j8rl	nv796	1984	1:63360
Oricto-Gynelle-Izo association	170	1423	477609	2xdmz	nv799	1991	1:24000
Izo very gravelly sand, 2 to 4 percent slopes	110	290	477600	j0zg	nv799	1991	1:24000

Map of Series Extent

Approximate geographic distribution of the IZO 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).