Soil Data Explorer - KNOX

Official Series Description

Lab Data Summary

Aggregate lab data for the KNOX soil series. This aggregation is based on all pedons with a current taxon name of KNOX, 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 KNOX 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
106	97KS103013	97KS103013	Knox	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.2780991,-94.9490585
107B	M8719517	1987MO195017m	Knox	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.3550356,-93.1796401
107B	M8908741	1989MO087041m	Knox	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.9225,-95.1027778
107B	M9108760	1991MO087060m	Knox	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.2305565,-95.398613
107B	M0304701	2003MO047001m	Knox	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.2002778,-94.4047222
107B	M0719550	2007MO195050	KNOX	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.3303333,-93.2188056
107B	M0719551	2007MO195051	KNOX	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.3298611,-93.2191111
107B	M0719552	2007MO195052	KNOX	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.33025,-93.2192222
107B	M0719553	2007MO195053	KNOX	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.3298056,-93.2195278
107B	98KS103505L	98KS103505L	Knox	1	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.2354164,-94.8693085
107B	98P0111	S1997IA047005	Knox	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	41.9218102,-95.6138992
109	M8904115	1989MO041015	Knox	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.4240083,-93.0437083
115B	M8904104	1989MO041004	Knox	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.9672203,-92.3450012
115B	M9005375	1990MO053075	Knox	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.9602778,-92.93
115B	M9205301	1992MO053001	Knox	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.9672203,-92.3450012
116A	M9005366	1990MO053066	Knox	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.7678611,-92.7352778

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the KNOX 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 KNOX 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 KNOX 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 KNOX 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 KNOX 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 KNOX 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 KNOX 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 KNOX, 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. KS-2012-01-20-04 | Atchison County - February 1984

   Typical pattern of soils in the Knox-Armster-Gosport association (Soil Survey of Atchison County, Kansas; 1984).

2. MO-2012-02-06-14 | Buchanan County - September 1989

   Pattern of soils and parent material in the Knox association (Soil Survey of Buchanan County, Missouri; September 1989).

3. MO-2012-02-06-25 | Clay and Ray Counties - January 1986

   Pattern of soils and parent material in the Knox-Sibley association (Soil Survey of Clay and Ray Counties, Missouri; January 1986).

Map Units

Map units containing KNOX 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
Knox silt loam, 9 to 14 percent slopes	268D	494	402767	fj3h	ia009	1982	1:15840
Knox silt loam, 18 to 25 percent slopes	268F	437	402769	fj3k	ia009	1982	1:15840
Knox silt loam, 5 to 9 percent slopes	268C	401	402766	fj3g	ia009	1982	1:15840
Knox silt loam, 14 to 18 percent slopes	268E	386	402768	fj3j	ia009	1982	1:15840
Knox silt loam, 4 to 9 percent slopes	268C	801	403525	fjwy	ia027	1979	1:15840
Knox silt loam, 9 to 14 percent slopes, moderately eroded	268D2	666	403526	fjwz	ia027	1979	1:15840
Knox silt loam, 14 to 18 percent slopes, moderately eroded	268E2	400	403527	fjx0	ia027	1979	1:15840
Knox silt loam, 20 to 30 percent slopes	268F	1031	399821	ff1g	ia047	2004	1:12000
Knox silt loam, 14 to 20 percent slopes	268E	727	399820	ff1f	ia047	2004	1:12000
Knox silt loam, 9 to 14 percent slopes	268D	257	399819	ff1d	ia047	2004	1:12000
Knox silt loam, 5 to 14 percent slopes	268D	347	406128	fmlx	ia071	1968	1:20000
Knox silt loam, 14 to 20 percent slopes	268E	103	406129	fmly	ia071	1968	1:20000
Palermo-Knox complex, 10 to 18 percent slopes	7971	9545	1475397	1lj8g	ks005	1998	1:24000
Knox-Gosport complex, 10 to 30 percent slopes	7959	5739	1475395	1lj8d	ks005	1998	1:24000
Knox silt loam, 3 to 7 percent slopes, eroded	7954	118	1480278	1lpbx	ks005	1998	1:24000
Knox silt loam, 3 to 7 percent slopes	7953	48	1475393	1lj8b	ks005	1998	1:24000
Palermo-Knox complex, 10 to 18 percent slopes	7971	13557	747183	t2hp	ks043	1977	1:24000
Knox silt loam, 3 to 7 percent slopes, eroded	7954	2733	747164	t2h2	ks043	1977	1:24000
Knox silt loam, 3 to 7 percent slopes	7953	87	1479421	1lng8	ks043	1977	1:24000
Knox silt loam, 7 to 12 percent slopes	7955	3973	1862416	20hzy	ks103	1973	1:24000
Knox silty clay loam, 7 to 12 percent slopes, eroded	7958	2584	1862419	20j01	ks103	1973	1:24000
Knox silt loam, 12 to 18 percent slopes	7956	2520	1862417	20hzz	ks103	1973	1:24000
Knox complex, 18 to 30 percent slopes	7957	2440	1862418	20j00	ks103	1973	1:24000
Palermo-Knox complex, 10 to 18 percent slopes	7971	310	1862422	20j04	ks103	1973	1:24000
Knox-Gosport complex, 10 to 30 percent slopes	7959	243	1862420	20j02	ks103	1973	1:24000
Knox silt loam, 7 to 12 percent slopes	7955	13830	1862304	20hwb	ks209	1973	1:24000
Knox complex, 18 to 30 percent slopes	7957	4642	1862306	20hwd	ks209	1973	1:24000
Knox silt loam, 12 to 18 percent slopes	7956	4102	1862305	20hwc	ks209	1973	1:24000
Knox silty clay loam, 7 to 12 percent slopes, eroded	7958	1283	1862307	20hwf	ks209	1973	1:24000
Knox silt loam, 5 to 9 percent slopes	10054	14537	2521128	2qkyl	mo003	1986	1:24000
Knox silty clay loam, 9 to 14 percent slopes, eroded	10062	12955	2521152	2qkys	mo003	1986	1:24000
Knox silty clay loam, 14 to 20 percent slopes, eroded	10058	5260	413403	fw5l	mo003	1986	1:24000
Knox silt loam, 20 to 35 percent slopes, eroded	10051	2645	2521123	2qkyk	mo003	1986	1:24000
Knox silty clay loam, 14 to 20 percent slopes, severely eroded	10059	22	2521146	2qkyq	mo003	1986	1:24000
Knox silt loam, 20 to 35 percent slopes	10050	6	2521117	2qkyj	mo003	1986	1:24000
Knox silt loam, 9 to 14 percent slopes, eroded	10056	18426	2521141	2qkyn	mo021	1984	1:24000
Knox silty clay loam, 14 to 20 percent slopes, severely eroded	10059	15716	2521145	2qkyq	mo021	1984	1:24000
Knox silt loam, 5 to 9 percent slopes, eroded	10055	7781	2521137	2qkym	mo021	1984	1:24000
Knox silt loam, 20 to 35 percent slopes	10050	4761	2521116	2qkyj	mo021	1984	1:24000
Knox silty clay loam, 9 to 14 percent slopes, severely eroded	10063	2706	2521158	2qkyt	mo021	1984	1:24000
Knox-Urban land complex, 20 to 30 percent slopes	10065	2228	2521162	2qkyw	mo021	1984	1:24000
Knox silt loam, 20 to 35 percent slopes, eroded	10051	1768	2521122	2qkyk	mo021	1984	1:24000
Knox silt loam, 5 to 9 percent slopes	10054	1276	2521127	2qkyl	mo021	1984	1:24000
Knox-Urban land complex, 9 to 20 percent slopes	10068	562	887544	yskg	mo021	1984	1:24000
Knox silty clay loam, 9 to 14 percent slopes, eroded	10062	533	2521151	2qkys	mo021	1984	1:24000
Knox silt loam, 5 to 9 percent slopes, eroded	10055	7020	2521136	2qkym	mo033	1988	1:24000
Knox silty clay loam, 9 to 14 percent slopes, severely eroded	10063	3866	2521157	2qkyt	mo033	1988	1:24000
Knox silt loam, 20 to 35 percent slopes	10050	1986	2521115	2qkyj	mo033	1988	1:24000
Knox silt loam, 14 to 20 percent slopes, eroded	10041	1350	2521107	2qkyg	mo033	1988	1:24000
Knox silty clay loam, 5 to 9 percent slopes, eroded	10061	3695	2521149	2qkyr	mo041	1992	1:24000
Knox silty clay loam, 9 to 30 percent slopes, severely eroded	60143	2732	888468	ytj8	mo041	1992	1:24000
Knox silt loam, 14 to 30 percent slopes, severely eroded	60144	1662	2533174	2qp5z	mo041	1992	1:24000
Knox silt loam, 5 to 9 percent slopes	10054	329	2521126	2qkyl	mo041	1992	1:24000
Knox silty clay loam, 9 to 14 percent slopes, severely eroded	10063	6824	2521154	2qkyt	mo047	1982	1:24000
Knox-Urban land complex, 9 to 14 percent slopes	10067	4592	2521166	2qkyy	mo047	1982	1:24000
Knox-Urban land complex, 5 to 9 percent slopes	10066	4233	2521163	2qkyx	mo047	1982	1:24000
Knox silt loam, 14 to 20 percent slopes, eroded	10041	3893	2521103	2qkyg	mo047	1982	1:24000
Knox silt loam, 5 to 9 percent slopes, eroded	10055	3368	2521131	2qkym	mo047	1982	1:24000
Knox silt loam, 20 to 35 percent slopes	10050	3066	2521111	2qkyj	mo047	1982	1:24000
Knox-Urban land complex, 14 to 20 percent slopes	10064	388	2521159	2qkyv	mo047	1982	1:24000
Knox silt loam, 5 to 9 percent slopes, eroded	10055	6170	2521129	2qkym	mo053	1993	1:24000
Timula-Knox silt loams, 14 to 35 percent slopes	10149	6557	887535	ysk5	mo087	1992	1:24000
Knox silt loam, 14 to 20 percent slopes, eroded	10041	6317	2521106	2qkyg	mo087	1992	1:24000
Knox silty clay loam, 5 to 9 percent slopes, eroded	10061	2405	2521148	2qkyr	mo087	1992	1:24000
Knox silty clay loam, 9 to 14 percent slopes, eroded	10062	2359	2521150	2qkys	mo087	1992	1:24000
Knox silt loam, 20 to 35 percent slopes	10050	622	2521114	2qkyj	mo087	1992	1:24000
Knox silt loam, 14 to 30 percent slopes, severely eroded	60144	4775	2533173	2qp5z	mo089	1975	1:24000
Knox silt loam, 9 to 14 percent slopes, severely eroded	10057	2800	2521142	2qkyp	mo089	1975	1:24000
Knox silt loam, 5 to 9 percent slopes	10054	1874	2521125	2qkyl	mo089	1975	1:24000
Knox silty clay loam, 5 to 9 percent slopes, eroded	10061	16	2521147	2qkyr	mo089	1975	1:24000
Knox silty clay loam, 9 to 14 percent slopes, severely eroded	10063	8249	2521156	2qkyt	mo095	1982	1:24000
Knox silt loam, 5 to 9 percent slopes, eroded	10055	7614	2521135	2qkym	mo095	1982	1:24000
Knox-Urban land complex, 5 to 9 percent slopes	10066	7551	2521165	2qkyx	mo095	1982	1:24000
Knox-Urban land complex, 9 to 14 percent slopes	10067	6891	2521168	2qkyy	mo095	1982	1:24000
Knox silt loam, 14 to 20 percent slopes, eroded	10041	2765	2521105	2qkyg	mo095	1982	1:24000
Knox silt loam, 20 to 35 percent slopes, eroded	10051	1251	2521121	2qkyk	mo095	1982	1:24000
Knox silt loam, 9 to 14 percent slopes, eroded	10056	22	2521140	2qkyn	mo095	1982	1:24000
Knox silt loam, 20 to 25 percent slopes, severely eroded	10047	2	2521109	2qkyh	mo095	1982	1:24000
Knox silt loam, 5 to 9 percent slopes, eroded	10055	8290	2521134	2qkym	mo107	1970	1:24000
Knox silt loam, 9 to 14 percent slopes, severely eroded	10057	6402	2521143	2qkyp	mo107	1970	1:24000
Knox silt loam, 20 to 35 percent slopes, eroded	10051	5452	2521120	2qkyk	mo107	1970	1:24000
Knox silt loam, 2 to 5 percent slopes	10045	3349	888039	yt2f	mo107	1970	1:24000
Knox silt loam, 14 to 20 percent slopes, eroded	10041	2954	2521104	2qkyg	mo107	1970	1:24000
Knox silt loam, 9 to 14 percent slopes, eroded	10056	2882	2521139	2qkyn	mo107	1970	1:24000
Knox silt loam, 14 to 20 percent slopes, severely eroded	10042	2177	888044	yt2l	mo107	1970	1:24000
Knox silt loam, 20 to 25 percent slopes, severely eroded	10047	1660	2521108	2qkyh	mo107	1970	1:24000
Knox silty clay loam, 14 to 20 percent slopes, severely eroded	10059	23008	2521144	2qkyq	mo165	1982	1:24000
Knox silty clay loam, 9 to 14 percent slopes, severely eroded	10063	16125	2521155	2qkyt	mo165	1982	1:24000
Knox silt loam, 5 to 9 percent slopes, eroded	10055	9532	2521133	2qkym	mo165	1982	1:24000
Knox silt loam, 20 to 35 percent slopes, eroded	10051	6611	2521119	2qkyk	mo165	1982	1:24000
Knox-Urban land complex, 9 to 14 percent slopes	10067	2922	2521167	2qkyy	mo165	1982	1:24000
Knox-Urban land complex, 5 to 9 percent slopes	10066	1896	2521164	2qkyx	mo165	1982	1:24000
Knox-Urban land complex, 14 to 20 percent slopes	10064	456	2521160	2qkyv	mo165	1982	1:24000
Knox silt loam, 20 to 35 percent slopes	10050	96	2521113	2qkyj	mo165	1982	1:24000
Knox-Urban land complex, 20 to 30 percent slopes	10065	38	2521161	2qkyw	mo165	1982	1:24000
Knox silty clay loam, 9 to 14 percent slopes, severely eroded	10063	7409	2521153	2qkyt	mo177	1979	1:24000
Knox silt loam, 5 to 9 percent slopes, eroded	10055	5476	2521130	2qkym	mo177	1979	1:24000
Knox silt loam, 14 to 20 percent slopes, eroded	10041	3734	2521102	2qkyg	mo177	1979	1:24000
Knox silt loam, 20 to 35 percent slopes	10050	3148	2521110	2qkyj	mo177	1979	1:24000
Knox silt loam, 5 to 9 percent slopes, eroded	10055	7201	2521132	2qkym	mo195	1989	1:24000
Knox silt loam, 9 to 14 percent slopes, eroded	10056	5329	2521138	2qkyn	mo195	1989	1:24000
Knox silt loam, 20 to 35 percent slopes	10050	2655	2521112	2qkyj	mo195	1989	1:24000
Knox silt loam, 20 to 35 percent slopes, eroded	10051	911	2521118	2qkyk	mo195	1989	1:24000
Knox silt loam, 5 to 9 percent slopes	10054	721	2521124	2qkyl	mo195	1989	1:24000

Map of Series Extent

Approximate geographic distribution of the KNOX 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).