Soil Data Explorer - GERDRUM

Official Series Description

Lab Data Summary

Aggregate lab data for the GERDRUM soil series. This aggregation is based on all pedons with a current taxon name of GERDRUM, 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 GERDRUM 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
52	88P0786	88MT051026	Gerdrum	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	48.4474106,-110.9453201
52	40A3672	S1968MT101003	Gerdrum	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	48.7554626,-111.4664536
58A	40A3483	S1951MT111004	Gerdrum	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	45.9818726,-108.1393509
58A	40A3643	S1966MT003001	Gerdrum	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	45.6546516,-107.9840622
58A	40A3645	S1966MT103001	Gerdrum	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.3369446,-107.288887
58A	40A3686	S1969MT005002	Gerdrum	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	47.9343643,-109.4469223
58A	40A3715	S1971MT069001	GERDRUM	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.8840942,-108.3865967
58A	40A3721	S1971MT069003	GERDRUM	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.8804817,-108.3782578

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the GERDRUM 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 GERDRUM 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 GERDRUM 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 GERDRUM 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 GERDRUM 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 GERDRUM 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 GERDRUM 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 GERDRUM, 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 GERDRUM 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
Gerdrum-Absher complex, 2 to 8 percent slopes	165C	60717	342941	2wbxx	mt011	1992	1:24000
Gerdrum clay loam, 2 to 8 percent slopes	65C	41561	343202	2wbxw	mt011	1992	1:24000
Creed-Gerdrum complex, 2 to 8 percent slopes	254C	41022	343048	2wbxz	mt011	1992	1:24000
Absher-Gerdrum complex, 0 to 4 percent slopes	168B	34507	342949	2zg6f	mt011	1992	1:24000
Gerdrum-Absher complex, 0 to 2 percent slopes	165A	22655	342940	chvl	mt011	1992	1:24000
Gerdrum clay loam, 0 to 2 percent slopes	65A	8510	343201	2wbxv	mt011	1992	1:24000
Varney-Gerdrum complex, 2 to 8 percent slopes	122C	3602	342855	chrv	mt011	1992	1:24000
Gerdrum-Absher complex, warm, 3 to 9 percent slopes	611D	304	343170	cj30	mt011	1992	1:24000
Gerdrum-Absher complex, warm, 0 to 3 percent slopes	611B	261	343169	cj2z	mt011	1992	1:24000
Creed-Gerdrum complex, warm, 2 to 6 percent slopes	602C	93	343161	cj2q	mt011	1992	1:24000
Archin-Gerdrum loams, 2 to 8 percent slopes	191C	21353	343330	2yk0q	mt017	1995	1:24000
Gerdrum-Creed complex, 4 to 15 percent slopes, gullied	421D	20452	343443	cjct	mt017	1995	1:24000
Kobase-Gerdrum silty clay loams, 2 to 8 percent slopes	532C	11162	343524	cjgf	mt017	1995	1:24000
Gerdrum-Creed complex, 2 to 8 percent slopes	421C	5228	343442	cjcs	mt017	1995	1:24000
Gerdrum-Creed complex, 0 to 2 percent slopes	421A	1131	343441	cjcr	mt017	1995	1:24000
Gerdrum-Kobase silty clay loams, 2 to 8 percent slopes	941C	159	343760	cjq1	mt017	1995	1:24000
Yamacall-Gerdrum complex, 2 to 8 percent slopes	995C	85	343838	cjsk	mt017	1995	1:24000
Pinehill-Weingart-Gerdrum complex, 0 to 6 percent slopes	993C	60	343834	cjsf	mt017	1995	1:24000
Gerdrum clay loam, 2 to 8 percent slopes	657C	46	343618	2wbxw	mt017	1995	1:24000
Gerdrum-Marvan silty clays, 2 to 8 percent slopes	658C	25	343620	cjkj	mt017	1995	1:24000
Gerdrum clay loam, 0 to 2 percent slopes	656A	5	343616	2wbxv	mt017	1995	1:24000
Gerdrum clay loam, 2 to 8 percent slopes	65C	19791	342267	2wbxw	mt025	1991	1:24000
Gerdrum-Absher complex, 2 to 8 percent slopes	165C	18240	342116	2wbxx	mt025	1991	1:24000
Creed-Gerdrum complex, 2 to 8 percent slopes	254C	11954	2837927	2wbxz	mt025	1991	1:24000
Absher-Gerdrum complex, 0 to 4 percent slopes	168B	3660	342120	2zg6g	mt025	1991	1:24000
Gerdrum clay loam, 0 to 2 percent slopes	65A	1988	2837929	2wbxv	mt025	1991	1:24000
Gerdrum-Absher complex, 0 to 2 percent slopes	165A	1752	342115	cgzz	mt025	1991	1:24000
Varney-Gerdrum complex, 2 to 8 percent slopes	122C	1684	342075	cgyp	mt025	1991	1:24000
Gerdrum clay loam, 0 to 4 percent slopes	111	19615	342337	ch74	mt027	1979	1:24000
Weingart-Gerdrum clay loams, 4 to 15 percent slopes	259	16828	342500	chdd	mt027	1979	1:24000
Gerdrum-Absher complex, 2 to 8 percent slopes	113	16032	342339	ch76	mt027	1979	1:24000
Gerdrum-Absher complex, 0 to 2 percent slopes	112	13502	342338	ch75	mt027	1979	1:24000
Creed-Gerdrum complex, 0 to 2 percent slopes	51	11419	342552	chg2	mt027	1979	1:24000
Creed-Gerdrum complex, 2 to 8 percent slopes	52	7459	342553	chg3	mt027	1979	1:24000
Weingart-Gerdrum clay loams, 0 to 4 percent slopes	258	3209	342499	chdc	mt027	1979	1:24000
Gerdrum-Vanda silty clays, 0 to 4 percent slopes	553B	14615	643404	plhz	mt033	2002	1:24000
Gerdrum clay loam, 2 to 8 percent slopes	557C	7587	342761	2wbxw	mt033	2002	1:24000
Gerdrum clay loam, 0 to 2 percent slopes	557A	5678	342754	2wbxv	mt033	2002	1:24000
Gerdrum-Marvan silty clays, 2 to 8 percent slopes	555C	3665	342803	chq5	mt033	2002	1:24000
Archin-Gerdrum loams, 2 to 8 percent slopes	861C	3603	342703	2yk0q	mt033	2002	1:24000
Gerdrum-Creed complex, 0 to 4 percent slopes	552B	3248	342663	chkn	mt033	2002	1:24000
Creed-Gerdrum complex, 0 to 8 percent slopes	391C	2619	342811	chqf	mt033	2002	1:24000
Brunelda-Gerdrum complex, 1 to 8 percent slopes	291C	2305	643403	plhy	mt033	2002	1:24000
Foreleft-Gerdrum complex, 2 to 8 percent slopes	53C	1378	360638	2xrrw	mt033	2002	1:24000
Gerdrum-Kobase silty clay loams, 0 to 2 percent slopes	554A	928	342783	chpj	mt033	2002	1:24000
Gerdrum-Kobase silty clay loams, 2 to 8 percent slopes	554C	846	342784	chpk	mt033	2002	1:24000
Gerdrum-Absher clay loams, 0 to 8 percent slopes	559C	843	339753	cdjs	mt033	2002	1:24000
Gerdrum-Yawdim-Fleak complex, 0 to 8 percent slopes	541C	645	339822	cdm0	mt033	2002	1:24000
Yawdim-Badland-Gerdrum association, 15 to 45 percent slopes	993F	146	339749	cdjn	mt033	2002	1:24000
Gerdrum clay loam, 8 to 15 percent slopes, gullied	556D	21	342810	chqd	mt033	2002	1:24000
Ferd-Creed-Gerdrum complex, 0 to 4 percent slopes	311B	15523	343903	cjvn	mt041	1994	1:24000
Gerdrum-Absher-Creed complex, 0 to 2 percent slopes	402A	6223	343949	cjx4	mt041	1994	1:24000
Absher-Gerdrum complex, 0 to 2 percent slopes	262A	2121	343889	cjv6	mt041	1994	1:24000
Ferd-Creed-Gerdrum complex, 0 to 4 percent slopes	311B	14521	344175	ck4f	mt051	1992	1:24000
Gerdrum-Yamacall loams, 2 to 8 percent slopes	401C	1611	344201	ck58	mt051	1992	1:24000
Gerdrum clay loam, 2 to 8 percent slopes	68	20191	344433	2wbxw	mt055	1981	1:24000
Yawdim-Badland-Gerdrum association	166	19858	344367	ckbm	mt055	1981	1:24000
Gerdrum-Absher clay loams, 0 to 8 percent slopes	70	12455	344436	ckdv	mt055	1981	1:24000
Creed-Gerdrum complex, 0 to 8 percent slopes	51	8760	344415	ckd5	mt055	1981	1:24000
Eapa-Gerdrum complex, 2 to 8 percent slopes	62	4724	344427	ckdk	mt055	1981	1:24000
Gerdrum-Yawdim-Fleak complex, 8 to 45 percent slopes	72	4081	344438	ckdx	mt055	1981	1:24000
Gerdrum clay loam, gullied, 8 to 15 percent slopes	69	2196	344434	ckds	mt055	1981	1:24000
Gerdrum-Yawdim-Fleak complex, 0 to 8 percent slopes	71	1904	344437	ckdw	mt055	1981	1:24000
Gerdrum-Vanda-Creed complex, 0 to 8 percent slopes	23B	19053	344513	2wby0	mt065	1996	1:24000
Gerdrum-Vanda complex, 0 to 8 percent slopes	23A	16076	344512	cgjd	mt065	1996	1:24000
Gerdrum-Creed loams, 1 to 8 percent slopes	23C	10679	344514	cgjg	mt065	1996	1:24000
Gerdrum-Vanda-Creed complex, 0 to 8 percent slopes	41	71474	344709	2wby0	mt069	1989	1:24000
Gerdrum-Vanda complex, 1 to 6 percent slopes	40	31017	344708	ckpm	mt069	1989	1:24000
Gerdrum-Creed complex, 1 to 6 percent slopes	39	30899	344706	ckpk	mt069	1989	1:24000
Gerdrum-Bascovy clays, 2 to 15 percent slopes	38	10150	344705	ckpj	mt069	1989	1:24000
Creed-Gerdrum complex, 1 to 6 percent slopes	29	7633	344695	ckp6	mt069	1989	1:24000
Gerdrum-Creed complex, 2 to 8 percent slopes	60	4844	344972	ckz4	mt079	1986	1:24000
Yamacall-Gerdrum complex, 2 to 8 percent slopes	138	3639	344819	ckt6	mt079	1986	1:24000
Creed-Gerdrum complex, 2 to 8 percent slopes	39	2819	344900	2wbxz	mt079	1986	1:24000
Gerdrum-Creed complex, 4 to 15 percent slopes, gullied	61	2672	344973	ckz5	mt079	1986	1:24000
Alona-Cambeth, calcareous-Gerdrum complex, 2 to 8 percent slopes	6	2326	344971	ckz3	mt079	1986	1:24000
Gerdrum-Creed complex, 0 to 2 percent slopes	59	1973	344969	ckz1	mt079	1986	1:24000
Pinelli-Weingart-Gerdrum complex, 0 to 6 percent slopes	105	1484	344781	ckrz	mt079	1986	1:24000
Kobar-Gerdrum silty clay loams, 2 to 8 percent slopes	75	1290	345008	cl09	mt079	1986	1:24000
Creed-Gerdrum-Absher complex, 0 to 4 percent slopes	311B	19921	345123	cl40	mt101	1992	1:24000
Gerdrum-Absher complex, 0 to 2 percent slopes	402A	15053	345161	cl57	mt101	1992	1:24000
Ferd-Creed-Gerdrum complex, 0 to 4 percent slopes	391B	9922	345156	cl52	mt101	1992	1:24000
Ferd-Creed-Gerdrum complex, 4 to 8 percent slopes	391C	637	345157	cl53	mt101	1992	1:24000
Creed-Gerdrum complex, 0 to 4 percent slopes	36	17518	346438	cmhf	mt608	1976	1:24000
Ethridge-Gerdrum complex, 0 to 4 percent slopes	42	8431	346463	cmj7	mt608	1976	1:24000
Wyola-Gerdrum silty clay loams, 0 to 4 percent slopes	107	4207	346251	cm9d	mt608	1976	1:24000
Shaak-Gerdrum complex, 0 to 4 percent slopes	112	3294	346257	cm9l	mt608	1976	1:24000
Gerdrum clay loam, 0 to 4 percent slopes	46	1883	346473	cmjk	mt608	1976	1:24000
Ferd-Creed-Gerdrum complex, 0 to 4 percent slopes	311B	18474	346679	cmr6	mt615	1992	1:24000
Gerdrum-Absher-Creed complex, 0 to 2 percent slopes	402A	9155	346756	cmtp	mt615	1992	1:24000
Ferd-Creed-Gerdrum complex, 4 to 8 percent slopes	311C	3247	346680	cmr7	mt615	1992	1:24000
Absher-Gerdrum complex, 0 to 4 percent slopes	265B	982	346654	2zg6g	mt615	1992	1:24000
Gerdrum-Creed complex, 0 to 8 percent slopes	170C	3670	2513674	50s3	mt624	2021	1:24000
Gerdrum-Vanda-Creed complex, 2 to 8 percent slopes	23C	2534	347392	cnh6	mt624	2021	1:24000
Gerdrum-Vanda-Creed complex, 2 to 8 percent slopes, fan	429C	1311	1910348	223w4	mt624	2021	1:24000
Gerdrum-Vanda-Creed complex, 0 to 2 percent slopes	23B	1068	2610243	2r8cx	mt624	2021	1:24000
Gerdrum-Vanda-Creed complex, 0 to 2 percent slopes, fan	429B	762	2610244	2r8cy	mt624	2021	1:24000
Creed-Gerdrum complex, 0 to 4 percent slopes	28B	9	2523227	4z0n	mt624	2021	1:24000
Gerdrum-Nobe-Yamacall complex, 0 to 4 percent slopes	16B	6183	147717	4yq2	mt630	1991	1:24000
Yamacall-Gerdrum complex, 0 to 4 percent slopes	116B	4367	147687	4yp3	mt630	1991	1:24000
Creed-Gerdrum complex, 0 to 4 percent slopes	28B	1225	148014	4z0n	mt637	2014	1:24000
Gerdrum-Creed complex, 0 to 8 percent slopes	170C	2601	149702	50s3	mt639	2000	1:24000
Gerdrum-Absher complex, 0 to 4 percent slopes	402B	20744	347704	cnt8	mt641	1994	1:24000
Marvan-Gerdrum association, 2 to 15 percent slopes	1030D	17847	347561	cnnn	mt641	1994	1:24000
Ethridge-Gerdrum clay loams, 0 to 4 percent slopes	381B	14729	347696	cnt0	mt641	1994	1:24000
Ferd-Gerdrum complex, 0 to 4 percent slopes	311B	14510	347665	cns0	mt641	1994	1:24000
Creed-Gerdrum complex, 0 to 4 percent slopes	392B	7174	347702	cnt6	mt641	1994	1:24000
Creed-Gerdrum-Absher association, 0 to 4 percent slopes	1392B	6297	347596	cnps	mt641	1994	1:24000
Gerdrum-Vanda silty clays, 0 to 4 percent slopes	93	25793	348129	cp7z	mt649	1985	1:24000
Gerdrum clay loam, 2 to 8 percent slopes	89	24703	348124	2wbxw	mt649	1985	1:24000
Foreleft-Gerdrum complex, 2 to 8 percent slopes	86	14725	348121	2xrrw	mt649	1985	1:24000
Gerdrum-Kobar silty clay loams, 2 to 8 percent slopes	91	9957	348127	cp7x	mt649	1985	1:24000
Gerdrum clay loam, 0 to 2 percent slopes	88	9087	348123	2wbxv	mt649	1985	1:24000
Gerdrum-Marvan silty clays, 2 to 8 percent slopes	92	6819	348128	cp7y	mt649	1985	1:24000
Brunelda-Gerdrum complex, 1 to 8 percent slopes	38	3770	348068	cp60	mt649	1985	1:24000
Gerdrum, shale substratum-Volborg, saline, complex, 1 to 4 percent slopes	94	3243	348130	cp80	mt649	1985	1:24000
Gerdrum-Kobar silty clay loams, 0 to 2 percent slopes	90	1456	348126	cp7w	mt649	1985	1:24000
Gerdrum-Creed complex, 0 to 8 percent slopes	170C	11	361423	d42t	mt655	1975	1:24000
Creed-Gerdrum complex, 0 to 4 percent slopes	131B	8102	348337	cpgp	mt657	1990	1:24000
Gerdrum-Absher clay loams, 0 to 2 percent slopes	114A	4356	348301	cpfj	mt657	1990	1:24000
Gerdrum-Vanda-Creed complex, 0 to 8 percent slopes	23B	7296	341664	2wby0	mt666	2008	1:24000
Gerdrum-Creed loams, 1 to 8 percent slopes	23C	3649	341665	cgjg	mt666	2008	1:24000
Gerdrum-Vanda complex, 0 to 8 percent slopes	23A	3464	341663	cgjd	mt666	2008	1:24000
Gerdrum-Creed complex, 0 to 8 percent slopes	170C	1068	2513675	50s3	mt666	2008	1:24000
Gerdrum silt loam, 0 to 4 percent slopes	GdA	20339	355741	cy5j	sd063	1984	1:24000
Tanna-Gerdrum complex, 0 to 3 percent slopes	ToA	2376	355798	cy7c	sd063	1984	1:24000
Gerdrum loam, 0 to 4 percent slopes	GaA	70815	355438	cxvr	sd601	1983	1:24000
Loburn-Gerdrum loams, 0 to 3 percent slopes	LcA	15935	355450	cxw4	sd601	1983	1:24000
Tisworth-Gerdrum family complex, 0 to 6 percent slopes	237	71731	501809	jv5d	wy601	1991	1:24000
Elkol-Gerdrum family complex, 1 to 8 percent slopes	154	29616	501692	jv1m	wy601	1991	1:24000
Tisworth-Gerdrum family loams, 1 to 8 percent slopes	236	24733	501808	jv5c	wy601	1991	1:24000
Elkol-Gerdrum family, overflow complex, 0 to 3 percent slopes	155	13693	501693	jv1n	wy601	1991	1:24000
Elkol-Gerdrum family, overflow complex, 0 to 3 percent slopes -- draft	454	1441	2573034	2x8pl	wy630		1:24000
Elkol-Gerdrum family complex, 1 to 8 percent slopes -- draft	453	150	2573033	2x8pk	wy630		1:24000
Gerdrum clay loam, 3 to 10 percent slopes -- draft	85C	603	503500	jwxy	wy723		1:24000

Map of Series Extent

Approximate geographic distribution of the GERDRUM 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).