Official Series Description


Lab Data Summary

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

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Pedons used in the lab summary:

MLRALab IDPedon IDTaxonnameCINSSL / NASIS ReportsLink To SoilWeb GMap
1540A3025S1959CA001008VALLECITOS4Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties37.5127792,-121.5452805
1540A3026S1959CA001009Vallecitos4Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties37.5222206,-121.538887

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the VALLECITOS 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.

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Sibling Summary

Siblings are those soil series that occur together in map units, in this case with the VALLECITOS series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot , parsed OSD records and snapshot of SC database .

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

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Geomorphic description summaries for the VALLECITOS 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 .

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Competing Series

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

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Select annual climate data summaries for the VALLECITOS 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 VALLECITOS 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 VALLECITOS, 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 .

Block Diagrams

Click a link below to display the diagram. Note that these diagrams may be from multiple survey areas.

  1. CA-2012-05-08-17 | Alameda Area - March 1966

    The relationship of geologic formations, landforms, and soil series in the Alameda Area (Soil Survey of Alameda Area, California; March, 1966).

Map Units

Map units containing VALLECITOS 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
Vallecitos loam, 30 to 50 percent slopesVaF3610455867h9cdca01319731:24000
Vallecitos rocky loam, 30 to 50 percent slopes, erodedVrF23052332519282y8v7ca06919651:20000
Vallecitos loam, 30 to 50 percent slopes, erodedVaF224042456308h9tmca06919651:20000
Vallecitos loam, 30 to 50 percent slopesVaF9821456307h9tlca06919651:20000
Vallecitos loam, 15 to 30 percent slopesVaE6519456306h9tkca06919651:20000
Vallecitos loam, 9 to 15 percent slopesVaD701456305h9tjca06919651:20000
Vallecitos rocky loam, 9 to 30 percent slopes, erodedVrE2552456309h9tnca06919651:20000
Vallecitos rocky loam, 15 to 30 percent slopes, erodedVaE2es212700548rhzbca06919651:20000
Vallecitos loam, 30 to 75 percent slopes, eroded, MLRA 15VaG2es147005492w61hca06919651:20000
Honker-Vallecitos-Gonzaga complex, 30 to 50 percent slopes, MLRA 1517675954620682wv8lca07719901:24000
Honker-Vallecitos-Honker, eroded, complex, 50 to 75 percent slopes, MLRA 1517854604620702wv8nca07719901:24000
Honker-Vallecitos-Honker, eroded, complex, 30 to 50 percent slopes, MLRA 1517719104620692wv8mca07719901:24000
Honker-Vallecitos-Honker, eroded, complex, 50 to 75 percent slopes, MLRA 15611ws7004362wv8nca60919631:20000
Vallecitos loam, 30 to 75 percent slopes, eroded, MLRA 15VaF2269054566302w61hca60919631:20000
Vallecitos rocky loam, 30 to 45 percent slopes, erodedVaE222914456629hb4zca60919631:20000
Vallecitos rocky loam, 15 to 30 percent slopesVaD223700529rhyqca60919631:20000
Vallecitos-Rock outcrop complex, 30 to 50 percent slopes153165456706hb7gca61019751:24000
Vallecitos rocky loam, 15 to 30 percent slopes, eroded408110424354752mr9qca64120091:24000
Honker-Vallecitos-Honker, eroded, complex, 50 to 75 percent slopes, MLRA 15611194304669852wv8nca64219981:24000
Honker-Vallecitos-Honker, eroded, complex, 30 to 50 percent slopes, MLRA 1561054254669842wv8mca64219981:24000
Honker-Vallecitos-Gonzaga complex, 30 to 50 percent slopes, MLRA 1561227704669862wv8lca64219981:24000
Hytop-Franciscan-Vallecitos complex, 50 to 75 percent slopes7001485467007hnyrca64219981:24000
Vallecitos rocky loam, 15 to 30 percent slopes, erodedVaE247696457061hblxca64619671:24000
Vallecitos loam, 30 to 75 percent slopes, eroded, MLRA 15VaG2372524570622w61hca64619671:24000
Honker-Vallecitos-Honker, eroded, complex, 50 to 75 percent slopes, MLRA 15611ws17186996462wv8nca64619671:24000
Honker-Vallecitos-Honker, eroded, complex, 30 to 50 percent slopes, MLRA 15610ws336996452wv8mca64619671:24000
Vallecitos rocky loam, 8 to 50 percent slopes, erodedVdF22676458387hczpca67919671:15840
Vallecitos loam, 8 to 25 percent slopes, severely erodedVaE31170458386hcznca67919671:15840
Vallecitos loam, thick solum variant, 2 to 8 percent slopes, erodedVeC2787458388hczqca67919671:15840
Vallecitos loam, thick solum variant, 8 to 15 percent slopes, erodedVeD2706458389hczrca67919671:15840
Vallecitos loam, thick solum variant, 15 to 50 percent slopes, erodedVeF2500458390hczsca67919671:15840

Map of Series Extent

Approximate geographic distribution of the VALLECITOS 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 .