Soil Data Explorer - MORRISON

Official Series Description

Lab Data Summary

Aggregate lab data for the MORRISON soil series. This aggregation is based on all pedons with a current taxon name of MORRISON, 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 MORRISON 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
147	63PA027010	1963PA027010	Morrison	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.8113889,-77.93
147	64PA027013	1964PA027013	Morrison	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.9711111,-77.6191667
147	64PA027018	1964PA027018	Morrison	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.7569444,-77.9727778
147	64PA027019	1964PA027019	Morrison	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.7725,-77.9625
147	67PA061010	1967PA061010	Morrison	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.6608333,-78.1333333
147	67PA061011	1967PA061011	Morrison	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.7091667,-78.0125
147	88PA099033	1988PA099033	Morrison	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.6152778,-76.9994444
147	05N0351	S2004PA027007	MORRISON	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.6420937,-77.6109695
147	05N0353	S2004PA027009	MORRISON	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.8177795,-77.8797226
147	05N0354	S2004PA027010	MORRISON	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.820137,-77.8762741

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the MORRISON 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 MORRISON 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 MORRISON 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 MORRISON 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 flats position figure.

Competing Series

Soil series competing with MORRISON 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 MORRISON 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 MORRISON 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 flats position figure.

Soil series sharing subgroup-level classification with MORRISON, 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. PA-2012-03-12-21 | Blair County - October 1981

   Typical pattern of soils and underlying material in the Morrison association (Soil Survey of Blair County, PA; 1981).

2. PA-2012-03-13-22 | Cumberland and Perry Counties - April 1986

   Typical pattern of soils and underlying material in the Elliber-Kreamer association (Soil Survey of Cumberland and Perry Counties, PA; 1986).

3. PA-2012-03-13-42 | Juniata and Mifflin Counties - April 1981

   Typical pattern of soils and underlying material of the Morrison association (Soil Survey of Juniata and Mifflin Counties, PA; 1981).

Map Units

Map units containing MORRISON 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
Morrison channery sandy loam, 8 to 15 percent slopes	MrC	4100	541832	l5tg	pa009	1989	1:24000
Morrison-Murrill complex, 8 to 15 percent slopes, very stony	MtC	3832	541838	l5tn	pa009	1989	1:24000
Morrison channery sandy loam, 8 to 15 percent slopes, very stony	MsC	2162	541835	l5tk	pa009	1989	1:24000
Morrison channery sandy loam, 3 to 8 percent slopes	MrB	1972	541831	l5tf	pa009	1989	1:24000
Morrison channery sandy loam, 15 to 25 percent slopes, very stony	MsD	1908	541836	l5tl	pa009	1989	1:24000
Morrison-Murrill complex, 15 to 25 percent slopes, very stony	MtD	1734	541839	l5tp	pa009	1989	1:24000
Morrison-Murrill complex, 3 to 8 percent slopes, very stony	MtB	1257	541837	l5tm	pa009	1989	1:24000
Morrison channery sandy loam, 15 to 25 percent slopes	MrD	1165	541833	l5th	pa009	1989	1:24000
Morrison channery sandy loam, 3 to 8 percent slopes, very stony	MsB	431	541834	l5tj	pa009	1989	1:24000
Morrison very stony sandy loam, 8 to 25 percent slopes	MsD	5351	542393	l6dk	pa013	1978	1:20000
Morrison sandy loam, 8 to 15 percent slopes	MrC	2502	542390	l6dg	pa013	1978	1:20000
Morrison very stony sandy loam, 3 to 8 percent slopes	MsB	2268	542392	l6dj	pa013	1978	1:20000
Morrison sandy loam, 3 to 8 percent slopes	MrB	1814	542389	l6df	pa013	1978	1:20000
Morrison very stony sandy loam, 25 to 50 percent slopes	MsF	1623	542394	l6dl	pa013	1978	1:20000
Morrison sandy loam, 15 to 25 percent slopes	MrD	1159	542391	l6dh	pa013	1978	1:20000
Morrison sandy loam, 2 to 8 percent slopes	MrB	9283	538323	l258	pa027	1975	1:20000
Morrison sandy loam, 8 to 15 percent slopes	MrC	8649	538324	l259	pa027	1975	1:20000
Morrison very stony sandy loam, 8 to 25 percent slopes	MsD	6092	538327	l25d	pa027	1975	1:20000
Morrison very stony sandy loam, steep	MTF	1929	538312	l24x	pa027	1975	1:20000
Morrison very stony sandy loam, 0 to 8 percent slopes	MsB	1924	538326	l25c	pa027	1975	1:20000
Morrison sandy loam, 15 to 25 percent slopes	MrD	1120	538325	l25b	pa027	1975	1:20000
Morrison channery sandy loam, 3 to 8 percent slopes	MoB	224	544074	l84s	pa035	2002	1:24000
Morrison channery sandy loam, 8 to 15 percent slopes	MoC	96	544075	l84t	pa035	2002	1:24000
Morrison sandy loam, 8 to 15 percent slopes	MoC	247	693779	r8xz	pa041	1980	1:15840
Morrison sandy loam, 3 to 8 percent slopes	MoB	152	693778	r8xy	pa041	1980	1:15840
Morrison very stony sandy loam, 8 to 25 percent slopes	MsD	7553	542025	l60p	pa061	1974	1:20000
Morrison sandy loam, 8 to 15 percent slopes	MrC	5130	542022	l60l	pa061	1974	1:20000
Morrison sandy loam, 2 to 8 percent slopes	MrB	4033	542021	l60k	pa061	1974	1:20000
Morrison very stony sandy loam, 2 to 8 percent slopes	MsB	1839	542024	l60n	pa061	1974	1:20000
Morrison sandy loam, 15 to 25 percent slopes	MrD	1231	542023	l60m	pa061	1974	1:20000
Morrison sandy loam, 8 to 15 percent slopes	MoC	516	694004	r957	pa099	1980	1:15840
Morrison sandy loam, 15 to 25 percent slopes	MoD	389	694005	r958	pa099	1980	1:15840
Morrison sandy loam, 3 to 8 percent slopes	MoB	365	694003	r956	pa099	1980	1:15840
Morrison gravelly sandy loam, 8 to 15 percent slopes	MrC	2	540865	l4t8	pa109	1980	1:20000
Morrison gravelly sandy loam, 3 to 8 percent slopes	MrB	0	540866	l4t9	pa109	1980	1:20000
Morrison gravelly sandy loam, 8 to 15 percent slopes	MrC	7612	545521	l9ng	pa605	1975	1:20000
Morrison gravelly sandy loam, 15 to 25 percent slopes	MrD	5731	545522	l9nh	pa605	1975	1:20000
Morrison gravelly sandy loam, 3 to 8 percent slopes	MrB	3755	545520	l9nf	pa605	1975	1:20000

Map of Series Extent

Approximate geographic distribution of the MORRISON 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).