Soil Data Explorer - TOLSTOI

Official Series Description

Lab Data Summary

Aggregate lab data for the TOLSTOI soil series. This aggregation is based on all pedons with a current taxon name of TOLSTOI, 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 TOLSTOI 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
220	79P0085	78AK130001	Tolstoi	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	55.4680557,-131.6444397
222	82P0618	82AK100002	Tolstoi	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	59.3291664,-135.8458405
n/a	40A0656	S1962AK201006	TOLSTOI	3	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 TOLSTOI 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.

There are insufficient data to create the water balance bar figure.

There are insufficient data to create the water balance line figure.

Sibling Summary

Siblings are those soil series that occur together in map units, in this case with the TOLSTOI 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 TOLSTOI 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).

There are insufficient data to create the annual climate figure.

Geomorphic description summaries for the TOLSTOI 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 TOLSTOI 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 TOLSTOI 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 TOLSTOI 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 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 TOLSTOI, 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 TOLSTOI 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
Tolstoi-Passage complex, 70 to 100 percent slopes	140	15632	51729	1qtp	ak641	1985	1:31680
Tolstoi, Passage, and Kupreanof silt loams, 20 to 70 percent slopes	141	12950	51730	1qtq	ak641	1985	1:31680
Tolstoi-Passage complex, 40 to 70 percent slopes	136	10717	51725	1qtk	ak641	1985	1:31680
Rock outcrop-Tolstoi complex, 70 to 100 percent slopes	129	8109	51718	1qtb	ak641	1985	1:31680
Rock outcrop-Tolstoi-Passage complex, 70 to 100 percent slopes	130	6463	51719	1qtc	ak641	1985	1:31680
Tolstoi-Rock outcrop complex, 40 to 70 percent slopes	139	5394	51728	1qtn	ak641	1985	1:31680
Tolstoi-Passage complex, 20 to 40 percent slopes	135	3412	51724	1qtj	ak641	1985	1:31680
Tolstoi-Passage complex, 5 to 20 percent slopes	134	886	51723	1qth	ak641	1985	1:31680
Tolstoi-Rock outcrop complex, 20 to 40 percent slopes	138	419	51727	1qtm	ak641	1985	1:31680
Tolstoi-Rock outcrop complex, 10 to 20 percent slopes	137	58	51726	1qtl	ak641	1985	1:31680
Karta-Tolstoi complex, 35 to 75 percent slopes	351DE	70972	49710	1nqk	ak644	1994	1:31680
Tolstoi very fine sandy loam, 5 to 100 percent slopes	53CFX	58431	49754	1nrz	ak644	1994	1:31680
Tolstoi-McGilvery complex, 75 to 100 percent slopes	528F	42959	49752	1nrx	ak644	1994	1:31680
McGilvery and Tolstoi soils, 5 to 60 percent slopes	28	31298	49671	1np9	ak644	1994	1:31680
Tolstoi-McGilvery complex, 60 to 75 percent slopes	528E	29452	49751	1nrw	ak644	1994	1:31680
Tolstoi-McGilvery complex, 35 to 100 percent slopes	528DF	21810	49750	1nrv	ak644	1994	1:31680
St. Nicholas-Tolstoi complex, 35 to 60 percent slopes	35D	15689	49713	1nqn	ak644	1994	1:31680
Tolstoi-McGilvery complex, 35 to 60 percent slopes	528D	11931	49749	1nrt	ak644	1994	1:31680
Tolstoi very fine sandy loam, 35 to 60 percent slopes	53D	9868	49755	1ns0	ak644	1994	1:31680
Tolstoi silt loam, 60 to 75 percent slopes	53E	8104	49756	1ns1	ak644	1994	1:31680
St. Nicholas-Tolstoi complex, 60 to 75 percent slopes	35E	7248	49714	1nqp	ak644	1994	1:31680
Tolstoi and Karta soils, 60 to 75 percent slopes	50E	6958	49744	1nrn	ak644	1994	1:31680
Tolstoi very fine sandy loam, 5 to 35 percent slopes	53C	6228	49753	1nry	ak644	1994	1:31680
Tolstoi and Karta soils, 75 to 100 percent slopes	50F	5646	49745	1nrp	ak644	1994	1:31680
Karta-Tolstoi complex, 60 to 75 percent slopes	351E	4690	49711	1nql	ak644	1994	1:31680
Karta-Tolstoi complex, 35 to 60 percent slopes	351D	4242	49709	1nqj	ak644	1994	1:31680
St. Nicholas-Tolstoi complex, 75 to 100 percent slopes	35F	3834	49715	1nqq	ak644	1994	1:31680
Tolstoi silt loam, 75 to 100 percent slopes	53F	3778	49757	1ns2	ak644	1994	1:31680
St. Nicholas-Tolstoi complex, 5 to 35 percent slopes	35C	3547	49712	1nqm	ak644	1994	1:31680
Tolstoi and Karta soils, 5 to 100 percent slopes	50CFX	3290	49742	1nrl	ak644	1994	1:31680
Tolstoi and Karta soils, 35 to 60 percent slopes	50D	2020	49743	1nrm	ak644	1994	1:31680
Tolstoi-McGilvery complex, 5 to 60 percent slopes	528CD	547	49748	1nrs	ak644	1994	1:31680
Sunnyhay-Tolstoi complex, 15 to 120 percent slopes, alpine	95	150470	49583	1nlg	ak645	1992	1:31680
Sunnyhay-Tolstoi-St. Nicholas complex, 20 to 120 percent slopes, subalpine	96	63676	49584	1nlh	ak645	1992	1:31680
Kupreanof-Tolstoi association, 5 to 35 percent slopes	11B	57801	49457	1ngd	ak645	1992	1:31680
Kupreanof-Tolstoi association, 35 to 75 percent slopes	11D	40185	49458	1ngf	ak645	1992	1:31680
Tolstoi-St. Nicholas association, 35 to 75 percent slopes, subalpine	54D	29562	49553	1nkh	ak645	1992	1:31680
Tolstoi-St. Nicholas association, 75 to 120 percent slopes, subalpine	54F	13548	49554	1nkj	ak645	1992	1:31680
Kupreanof-Tolstoi association, 75 to 100 percent slopes	11F	6654	49459	1ngg	ak645	1992	1:31680
Tolstoi-Cryorthents complex, 60 to 120 percent slopes	14F	3071	49464	1ngm	ak645	1992	1:31680
Tolstoi-St. Nicholas association, 5 to 35 percent slopes, subalpine	54B	2954	49552	1nkg	ak645	1992	1:31680
Kwatahein-Tolstoi complex, 75 to 100 percent slopes	7F	2377	49576	1nl7	ak645	1992	1:31680
Tolstoi and Kaikli soils, alpine, 76 to 120 percent slopes	3003E	170886	49849	1nw1	ak646	1992	1:31680
Entic Cryumbrepts-Tolstoi-Kupreanof association, 76 to 140 percent slopes	3002E	95652	49848	1nw0	ak646	1992	1:31680
Tolstoi and Kaikli soils, subalpine, 36 to 55 percent slopes	3670C	73660	50023	1p1n	ak646	1992	1:31680
Tolstoi, Kaikli, and Lithic Cryorthent soils, alpine, broken, 6 to 35 percent slopes	3604B	52300	49971	1nzz	ak646	1992	1:31680
Tolstoi, Kaikli, and Lithic Cryorthent soils, alpine, rounded summit, 6 to 35 percent slopes	1204B	40543	49841	1nvs	ak646	1992	1:31680
Tolstoi, Mitkof, and Kupreanof soils, subalpine, broken, 36 to 55 percent slopes	3695C	26892	50030	1p1w	ak646	1992	1:31680
Tolstoi, Kupreanof, and Peril soils, subalpine, broken, 56 to 75 percent slopes	3638D	23677	49989	1p0k	ak646	1992	1:31680
Mitkof-Tolstoi-Kaikli complex, 36 to 55 percent slopes	3662C	19248	50018	1p1h	ak646	1992	1:31680
Tolstoi, McGilvery and Kupreanof soils, subalpine, 76 to 140 percent slopes	3037E	18234	49851	1nw3	ak646	1992	1:31680
Tolstoi and Kaikli soils, subalpine, 6 to 35 percent slopes	1270B	16152	49842	1nvt	ak646	1992	1:31680
Tolstoi and Kupreanof soils, subalpine, 76 to 120 percent slopes	3071E	14938	49853	1nw5	ak646	1992	1:31680
Tolstoi-Mosman complex, broken, 56 to 75 percent slopes	3651D	14297	50005	1p12	ak646	1992	1:31680
Tolstoi and Kupreanof soils, subalpine, broken, 56 to 75 percent slopes	3671D	13392	50024	1p1p	ak646	1992	1:31680
Tolstoi-Mosman complex, smooth, 56 to 75 percent slopes	3551D	12016	49948	1nz7	ak646	1992	1:31680
Tolstoi-Mosman-McGilvery complex, deeply incised, 76 to 120 percent slopes	3149E	11529	49865	1nwk	ak646	1992	1:31680
Tolstoi-Mosman-McGilvery complex, smooth, 76 to 120 percent slopes	3549E	11234	49946	1nz5	ak646	1992	1:31680
Kupreanof-Tolstoi complex, broken, 56 to 75 percent slopes	3625D	10939	49983	1p0c	ak646	1992	1:31680
Kupreanof-Tolstoi complex, smooth, 76 to 120 percent slopes	3525E	9912	49936	1nyv	ak646	1992	1:31680
Tolstoi-Mosman-McGilvery complex, broken, 36 to 55 percent slope	3649C	8890	50001	1p0y	ak646	1992	1:31680
Kupreanof-Tolstoi complex, shallowly incised, 76 to 120 percent slopes	3225E	8867	49892	1nxf	ak646	1992	1:31680
Tolstoi, Kupreanof, and Peril soils, subalpine, smooth, 56 to 75 percent slopes	3538D	8488	49937	1nyw	ak646	1992	1:31680
Tolstoi-Mosman-McGilvery complex, shallowly incised, 76 to 120 percent slopes	3249E	8422	49902	1nxr	ak646	1992	1:31680
Kupreanof-Tolstoi complex, deeply incised, 76 to 120 percent slopes	3125E	8235	49859	1nwc	ak646	1992	1:31680
Tolstoi, Kupreanof, and Peril soils, subalpine, shallowly incised 56 to 75 percent slopes	3238D	7921	49893	1nxg	ak646	1992	1:31680
Kupreanof-Tolstoi complex, smooth, 56 to 75 percent slopes	3525D	6605	49935	1nyt	ak646	1992	1:31680
Tolstoi-Mosman-McGilvery complex, rolling hills, 36 to 55 percent slopes	4249C	5898	50054	1p2n	ak646	1992	1:31680
Kupreanof-Tolstoi complex, broken, 76 to 120 percent slopes	3625E	5455	49984	1p0d	ak646	1992	1:31680
Kupreanof-Tolstoi complex, shallowly incised, 56 to 75 percent slopes	3225D	4906	49891	1nxd	ak646	1992	1:31680
Tolstoi-Mosman-McGilvery complex, broken, 76 to 12o percent slopes	3649E	4887	50002	1p0z	ak646	1992	1:31680
Tolstoi, Mitkof, and Kupreanof soils, subalpine, rounded summit, 36 to 55 percent slopes	1295C	4686	49843	1nvv	ak646	1992	1:31680
Tolstoi-Mosman complex, deeply incised, 56 to 75 percent slopes	3151D	4591	49867	1nwm	ak646	1992	1:31680
Tolstoi-Mosman complex, shallowly incised, 56 to 75 percent slopes	3251D	4461	49904	1nxt	ak646	1992	1:31680
Kupreanof-Tolstoi complex, 36 to 55 percent slopes	4225C	4206	50048	1p2g	ak646	1992	1:31680
Tolstoi and Kupreanof soils, subalpine, shallowly incised, 56 to 75 percent slopes	3271D	4059	49912	1ny2	ak646	1992	1:31680
Mitkof-Tolstoi-Kaikli complex, broken, 56 to 75 percent slopes	3662D	3612	50019	1p1j	ak646	1992	1:31680
Tolstoi-Mosman complex, smooth hills, 56 to 75 percent slopes	4451D	3329	50082	1p3k	ak646	1992	1:31680
Tolstoi, Kupreanof, and Peril soils, subalpine, deeply incised, 56 to 75 percent slopes	3138D	3096	49860	1nwd	ak646	1992	1:31680
Kupreanof-Tolstoi complex, deeply dissected, 76 to 120 percent slopes	3125D	2730	49858	1nwb	ak646	1992	1:31680
Mitkof-Tolstoi-Kaikli complex, shallowly incised, 56 to 75 percent slopes	3262D	2249	49911	1ny1	ak646	1992	1:31680
Tolstoi-Mosman-McGilvery complex, smooth hills, 76 to 120 percent slopes	4449E	1953	50080	1p3h	ak646	1992	1:31680
Tolstoi and Kupreanof soils, subalpine, smooth, 56 to 75 percent slopes	3571D	1856	49957	1nzj	ak646	1992	1:31680
Mitkof-Tolstoi-Kaikli complex, smooth, 56 to 75 percent slopes	3562D	950	49956	1nzh	ak646	1992	1:31680
Mitkof-Tolstoi-Kaikli complex, deeply incised, 56 to 75 percent slopes	3162D	912	49870	1nwq	ak646	1992	1:31680
Kupreanof-Tolstoi complex, dissected hills, 56 to 75 percent slopes	4325D	361	50068	1p33	ak646	1992	1:31680
Tolstoi-Mosman-McGilvery complex, dissected hills, 76 to 12o percent slopes	4349E	295	50069	1p34	ak646	1992	1:31680
Tolstoi-Mosman complex, dissected hills, 56 to 75 percent slopes	4351D	217	50070	1p35	ak646	1992	1:31680

Map of Series Extent

Approximate geographic distribution of the TOLSTOI 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).