Official Series Description


Lab Data Summary

Aggregate lab data for the REEF soil series. This aggregation is based on all pedons with a current taxon name of REEF, 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 REEF 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
3593P003989UT017001copyReef7Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties37.8574867,-111.0612946

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the REEF 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 REEF 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 REEF 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 REEF 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 REEF 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 REEF series and competing. 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 REEF 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 .

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There are insufficient data to create the 3D terrace figure.

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Soil series sharing subgroup-level classification with REEF, 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

No block diagrams are available.

Map Units

Map units containing REEF 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
Reef-Rock outcrop complex, 4 to 35 percent slopes4388972745421n4pkaz70720111:24000
Reef-Lorna-Rock outcrop complex, 8 to 60 percent slopes24268529814112x2pqaz70720111:24000
Reef-Mido-Zukan complex, 2 to 35 percent slopes393407219059762v1c3az71120081:24000
Gish, moderately deep-Reef complex, 1 to 35 percent slopes13618118850882sdw6az71120081:24000
Reef-Mido-Zukan complex, 2 to 35 percent slopes4113650524233722v1c3az71320111:24000
Kinusta-Tekapo-Reef families complex, 1 to 60 percent slopes508064580612qszlaz71520071:24000
Reef-Rock outcrop-Romberg complex, 15 to 45 percent slopes, rubbly15912524844152pd7fco67119971:24000
Reef-Romberg-Rock outcrop complex, 8 to 15 percent slopes, rubbly1621529274502wr8hco67119971:24000
Reef-Rizno-Rock outcrop complex, 2 to 15 percent slopesc75322825045622q701ut6291:24000
Reef-Romberg family-Rock outcrop complex, 25 to 80 percent slopes, extremely bouldery1598024843942pd6rut63819851:24000
Reef-Rock outcrop complex, Kayenta Formation, 15 to 60 percent slopes751591024284782mj10ut6421:63360
Reef-Retsabal-Rock outcrop complex, 15 to 60 percent slopes69991125074502q70lut68519901:24000
Daklos-Reef-Rock outcrop complex, 6 to 60 percent slopes22802425044732q3sdut68519901:24000
Reef-Rock outcrop complex, 15 to 60 percent slopes70798525074332q702ut68519901:24000
Reef-Rizno-Rock outcrop complex, 2 to 15 percent slopes75443025074322q701ut68519901:24000
Reef-Rock outcrop complex, 6 to 20 percent slopes73413925074462q70dut68519901:24000
Reef-Rock outcrop complex, 30 to 60 percent slopes, extremely bouldery72138726084391ifsgut68519901:24000
Reef-Rock outcrop complex, 25 to 50 percent slopes71134625044782q3skut68519901:24000
Reef, warm-Rock outcrop-Lemrac complex, 20 to 65 percent slopes7482125044712q3sbut68519901:24000
Mido-Strych-Reef complex, 2 to 50 percent slopes4078626084331ifsbut68519901:24000
Reef very channery sandy loam, 5 to 25 percent slopes511019646597412054ut68620041:24000
Reef-Rock outcrop complex, 5 to 30 percent slopes891183186870820qjxut68720091:24000
Reef-Rock outcrop complex, 30 to 60 percent slopes, extremely bouldery109969123983382lhnrut68820091:24000
Reef-Rock outcrop complex, 2 to 30 percent slopes108443423983362lhnput68820091:24000
Reef-Rock outcrop complex, 30 to 60 percent slopes, extremely bouldery265844124504172n7vqut6891:24000
Reef-Rock outcrop complex, 2 to 30 percent slopes25825524504162n7vput6891:24000

Map of Series Extent

Approximate geographic distribution of the REEF 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 .