Official Series Description


Lab Data Summary

Aggregate lab data for the COLLUVIAL LAND soil series. This aggregation is based on all pedons with a current taxon name of COLLUVIAL LAND, 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 COLLUVIAL LAND were used in the calculation. Source: KSSL snapshot . Methods used to assemble the KSSL snapshot used by SoilWeb / SDE

There are insufficient data to create the lab data summary figure.


Water Balance

Monthly water balance estimated using a leaky-bucket style model for the COLLUVIAL LAND 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 COLLUVIAL LAND series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot , parsed OSD records and snapshot of SC database .

There are insufficient data to create the sibling sketch figure.

Select annual climate data summaries for the COLLUVIAL LAND series and siblings. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data .

There are insufficient data to create the annual climate figure.

Geomorphic description summaries for the COLLUVIAL LAND 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 .

There are insufficient data to create the 2D hillslope position figure.

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.

Competing Series

Soil series competing with COLLUVIAL LAND share the same family level classification in Soil Taxonomy. Source: parsed OSD records and snapshot of the SC database .

There are insufficient data to create the competing sketch figure.

Select annual climate data summaries for the COLLUVIAL LAND series and competing. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data .

There are insufficient data to create the annual climate figure.

Geomorphic description summaries for the COLLUVIAL LAND 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 .

There are insufficient data to create the 2D hillslope position figure.

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 COLLUVIAL LAND, 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 .

This figure is not available.

Block Diagrams

No block diagrams are available.

Map Units

Map units containing COLLUVIAL LAND 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
Colluvial land, sedimentary rocksCdsF7677458599hd6jca02119611:20000
Colluvial land, volcanic rocksCdvF7283458601hd6lca02119611:20000
Colluvial land, serpentine rocksCduF301458600hd6kca02119611:20000
Colluvial landCsF17198459975hfmxca60719671:20000
Colluvial land, volcanic rocksCkF13585460708hgdkca64519611:20000
Colluvial land, sedimentary rocksClF11230460709hgdlca64519611:20000
Colluvial landCsFsh6932766076hfmxca64519611:20000
Colluvial landCzF419464262hl36ca65419661:24000
Colluvial landCsFsh1735186838320q6fca70719831:24000
Colluvial land, volcanic rocksCkFtc255186827920q32ca70719831:24000
Colluvial landCsFsc315286471n9p6ca70819841:24000
Colluvial land, 60 to 75 percent slopes3153535027478102q1z3ca70920101:24000
Colluvial land, sedimentary rocksCdsFgl18127478962q418ca70920101:24000
Colluvial landCO2346468144hq4fhi95019661:24000
Rock outcrop-Colluvial land complex, 60 to 90 percent slopesSr82315424655hpid66219691:31680
Colluvial and Alluvial landCu279214259821jvvfor60119681:20000
Colluvial land and Shale outcropCN2080484573j87dut64019671:20000
Colluvial land, extremely stonyCu7668516960kby4va11319671:15840
Colluvial land, very stonyCr870516959kby3va11319671:15840
Colluvial landCu584700542bwtwa61919681:24000
Colluvial landCE1569350827cs20wy61919711:24000

Map of Series Extent

Approximate geographic distribution of the COLLUVIAL LAND 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 .