Soil Data Explorer - NAKAI

Official Series Description

Lab Data Summary

Aggregate lab data for the NAKAI soil series. This aggregation is based on all pedons with a current taxon name of NAKAI, 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 NAKAI 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
35	82P0888	82AZ017009	Nakai	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	35.5711098,-110.558609
n/a	82P0787	82UT037007	Nakai	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 NAKAI 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 NAKAI 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 NAKAI 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 NAKAI 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 NAKAI 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 NAKAI 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 NAKAI 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 NAKAI, 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 NAKAI 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
Urban land-Nakai complex, 1 to 15 percent slopes	62	714	1678282	2sdvv	az711	2008	1:24000
Monue-Sheppard-Nakai complex, 1 to 6 percent slopes	32	96118	2408417	2sdx9	az713	2011	1:24000
Nakai-Somorent family complex, 1 to 15 percent slopes	34	72189	2433344	2sdxl	az713	2011	1:24000
Nakai very fine sandy loam, 0 to 6 percent slopes	33	830	2495423	2sdyt	az713	2011	1:24000
Nakai-Monue very fine sandy loams,	23	77820	54711	1txw	az714	1985	1:24000
Sheppard-Nakai complex, 1 to 8 percent slopes	33	6475	54724	1ty9	az714	1985	1:24000
Nakai fine sandy loam, 3 to 15 percent slopes	22	4190	54710	1txv	az714	1985	1:24000
Nakai-Monue very fine sandy loams, 1 to 5 percent slopes	67	9192	57981	2qsx9	az715	2007	1:24000
Nakai fine sandy loam, 3 to 10 percent slopes	40	21617	504535	jy0b	ut624	1985	1:24000
Nakai-Sheppard complex	43	10281	504538	jy0f	ut624	1985	1:24000
Nakai-Redlands complex	42	10271	504537	jy0d	ut624	1985	1:24000
Nakai-Moenkopie complex	41	7602	504536	jy0c	ut624	1985	1:24000
Shalet-Nakai complex	65	5176	504562	jy16	ut624	1985	1:24000
Nakai fine sand, 2 to 8 percent slopes	58	3659	55380	1vmg	ut633	1983	1:24000
Bluechief-Limeridge-Nakai complex, 1 to 6 percent slopes	7	40753	55493	1vr3	ut638	1985	1:24000
Myton family-Nakai-Redhouse complex	32	19075	55456	1vpx	ut638	1985	1:24000
Nakai-Moffat-Sheppard association	37	16324	55461	1vq2	ut638	1985	1:24000
Nakai fine sandy loam, 1 to 6 percent slopes	36	6203	55460	1vq1	ut638	1985	1:24000
Sheppard-Nakai complex, 0 to 8 percent slopes	92	12244	2397989	2lh9h	ut642		1:63360
Nakai very fine sandy loam, 2 to 6 percent slopes	NbC	38425	55293	1vjn	ut643	1976	1:63000
Deleco-Nakai-Rock outcrop association, sloping	DND	24410	55272	1vhz	ut643	1976	1:63000
Nakai loamy fine sand, 1 to 8 percent slopes	NaB	5410	55292	1vjm	ut643	1976	1:63000
Moffat-Sheppard-Nakai complex, 2 to 30 percent slopes	5046	13635	59791	206r	ut686	2004	1:24000
Nakai-Sheppard complex, 2 to 15 percent slopes	5138	9033	59865	2094	ut686	2004	1:24000

Map of Series Extent

Approximate geographic distribution of the NAKAI 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).