Official Series Description


Lab Data Summary

Aggregate lab data for the TARRANT soil series. This aggregation is based on all pedons with a current taxon name of TARRANT, 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 TARRANT 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
81B40A4526S1964TX327001Tarrant4Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties30.8747215,-99.7655563
81B40A4527S1964TX327002Tarrant4Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties30.8925,-99.7780528

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the TARRANT 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 TARRANT 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 TARRANT 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 TARRANT 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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There are insufficient data to create the 3D mountains figure.

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There are insufficient data to create the 3D flats position figure.

Competing Series

Soil series competing with TARRANT 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 TARRANT 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 TARRANT 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 TARRANT, 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. OK-2012-02-16-16 | Comanche County - August 1967

    Topography and underlying material of Lawton soils and other extensive soils in northwestern part of county (Soil Survey of Comanche County, Oklahoma; August 1967).

  2. OK-2012-02-16-37 | Greer County - March 1967

    Major soils in soil associations 3, 7, and 9, and their relation to the landscape (Soil Survey of Greer County, Oklahoma; March 1967).

  3. OK-2012-02-17-07 | Love County - September 1966

    Diagram showing typical relief and relative positions of the soils in associations 2 and 5 in the north-central part of Love County (Soil Survey of Love County, Oklahoma; September 1966).

  4. OK-2012-02-17-09 | Love County - September 1966

    Diagram showing relief typical of the central part of the county and the relative positions of the soils in association 7 (Soil Survey of Love County, Oklahoma; September 1966).

  5. TX-2010-11-03-75 | Mason County -

  6. TX-2012-03-21-08 | Haskell County - March 1961

    Soils developed over limestone (Soil Survey of Haskell County, TX; 1961).

  7. TX-2012-03-21-43 | McCulloch County - November 1974

    Pattern of soils in Tarrant-Kavett association (Soil Survey of McCulloch County, TX; 1974).

  8. TX-2012-03-21-44 | McCulloch County - November 1974

    Pattern of soils in Rumple association (Soil Survey of McCulloch County, TX; 1974).

  9. TX-2012-03-21-48 | Menard County - February 1967

    Soils of the Menard-Hext soil association (Soil Survey of Menard County, TX; 1967).

  10. TX-2012-03-21-49 | Menard County - February 1967

    Soils of the Tarrant soil association (Soil Survey of Menard County, TX; 1967).

  11. TX-2012-03-21-50 | Menard County - February 1967

    Soils of the Knippa-Uvalde soil association (Soil Survey of Menard County, TX; 1967).

Map Units

Map units containing TARRANT 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
Ferris-Tarrant complex, 8 to 20 percent slopes3317624381814dt9lok01319741:24000
San Saba-Tarrant complex, 1 to 8 percent slopes715920381856dtbyok01319741:24000
Ferris-Tarrant complex, 5 to 12 percent slopes181752383280dvtwok06919761:24000
Ferris-Tarrant complex, 5 to 12 percent slopes1216339383886dwgfok09519781:24000
Tarrant-Doss association, undulatingTDX23135362635d5bxtx01919711:24000
Maloterre-Tarrant complex, 1 to 8 percent slopesMtD3910636300230myhtx03519771:24000
Tarrant association, undulatingTaD20481363028d5rltx03519771:24000
Tarrant association, dry, 8 to 30 percent slopesTAE675733639942t2k2tx08119681:24000
Tarrant soils, dry, 1 to 8 percent slopesTAB334513639932t2k0tx08119681:24000
Tarrant and Purves soils, undulatingTPB144094364041d6t8tx08319681:24000
Tarrant soils, undulatingTaB28642364042d6t9tx08319681:24000
Speck and Tarrant soils, undulatingSRB27185364036d6t3tx08319681:24000
Tarrant association, undulatingTAD25664364414d769tx09319741:20000
Tarrant-Rock outcrop association, hillyTAF4645364415d76btx09319741:20000
Purves-Tarrant complex, 8 to 40 percent slopesPvG387936441130knytx09319741:20000
Tarrant-Oplin-Kavett association, undulatingTKC63756364450d77gtx09519851:24000
Tarrant-Rock outcrop complex, 1 to 15 percent slopesTRD41925364688d7h4tx10520021:31680
Ozona-Tarrant complex, 0 to 5 percent slopesOaC8980364685d7h1tx10520021:31680
Tarrant-Rock outcrop complex, dry, 8 to 30 percent slopesTRG61653646902t2k3tx10520021:31680
Tarrant soils, 1 to 8 percent slopesTaC1510323662192t2jntx17119701:20000
Tarrant-Rock outcrop complex, 8 to 40 percent slopesTkE415963662202t2jwtx17119701:20000
Brackett-Tarrant association, hillyBtE22790366175d913tx17119701:20000
Tarrant soils, dry, 1 to 8 percent slopesTAB267643679702t2k0tx23519821:31680
Tarrant-Eckrant association, gently undulatingTTC10471368541dchftx26519831:31680
Purves-Tarrant association, 1 to 8 percent slopesPTD77473685372t2jttx26519831:31680
Tarrant soils, 1 to 8 percent slopesTaC5004463685632t2jntx26719801:31680
Tarrant-Rock outcrop complex, 8 to 40 percent slopesTrG748713685642t2jwtx26719801:31680
Kavett-Tarrant association, 0 to 4 percent slopesKTB272873685522t2j2tx26719801:31680
Purves-Tarrant association, 1 to 8 percent slopesPTB131323685582t2jttx26719801:31680
Eckrant-Tarrant complex, undulatingEtC4652368549dchptx26719801:31680
Tarrant-Rock outcrop complex, 8 to 20 percent slopesTr84618368706dcnrtx27119651:20000
Kavett-Tarrant stony clays complex, 0 to 3 percent slopesKc5469368695dcndtx27119651:20000
Tarrant soils, 1 to 8 percent slopesTs36413687072t2jntx27119651:20000
Tarrant soils, 1 to 8 percent slopesTAC1984153699742t2jntx30719701:24000
Tarrant-Kavett complex, 0 to 5 percent slopesTKC404283699752t2jztx30719701:24000
Owens and Tarrant soils, hillyOTE31355369958ddz4tx30719701:24000
Brackett-Tarrant association, steepBUE10617369931ddy8tx30719701:24000
Speck and Tarrant soils, gently undulatingSTB3772369969ddzhtx30719701:24000
Tarrant-Rock outcrop complex, 1 to 12 percent slopesTRE28390370413dffttx31920111:24000
Kerrville, Brackett, and Tarrant soils, 12 to 40 percent slopes, very rockyKTG10769370410dffqtx31920111:24000
Tarrant-Rock outcrop complex, 8 to 40 percent slopesTRG36643704142t2jwtx31920111:24000
Kavett-Tarrant association, undulatingKAD5283370554dflctx32519721:24000
Tarrant and Speck soils, 1 to 8 percent slopesTeD3578370584dfmbtx32519721:24000
Tarrant soils, 1 to 8 percent slopesTa3893423706142t2jntx32719651:20000
Tarrant-Kavett complex, 0 to 5 percent slopesTk433733706162t2jztx32719651:20000
Tarrant-Brackett association, hillyTb22652370615dfnbtx32719651:20000
Tarrant soils, dry, 1 to 8 percent slopes47123023710172t2k0tx35319791:24000
Tarrant stony clay, 0 to 8 percent slopesTrC2836371791dgw8tx39919651:20000
Tarrant-Rock outcrop complexRo2748371784dgw1tx39919651:20000
Tarrant stony clay, 8 to 30 percent slopesTrD1183371792dgw9tx39919651:20000
Tarrant soils, 1 to 8 percent slopes82987383719982t2jntx41319771:31680
Kavett-Tarrant association, 0 to 4 percent slopes5659783719952t2j2tx41319771:31680
Tarrant association, dry, 8 to 30 percent slopes9149653719992t2k2tx41319771:31680
Tarrant-Rock outcrop complex, dry, 8 to 30 percent slopesTAG195433722522t2k3tx43119741:31680
Tarrant soils, 1 to 8 percent slopesTs4249653723292t2jntx43519651:20000
Kavett-Tarrant association, 0 to 4 percent slopesKt1974693723232t2j2tx43519651:20000
Tarrant-Rock outcrop complex, dry, 8 to 30 percent slopesTr1000753723282t2k3tx43519651:20000
Tarrant soils, dry, 1 to 8 percent slopesTaC1628533727602t2k0tx45119711:20000
Tarrant association, dry, 8 to 30 percent slopesTaE443443727612t2k2tx45119711:20000
Tarrant soils, dry, 1 to 8 percent slopesTAD390533729702t2k0tx46519801:24000
Kavett-Tarrant association, gently undulatingKTC13189372948dj2ltx46519801:24000
Tarrant-Tarpley complex, 1 to 8 percent slopesTaTD562803910542y2sntx60219751:24000
Tarpley-Tarrant complex, 1 to 5 percent slopesTaTC443763910532y2smtx60219751:24000
Brackett-Tarrant complex, 8 to 30 percent slopes14513539098730knptx60219751:24000
Tarrant-Valera complex, 0 to 3 percent slopesTvB43628374317dkhrtx60720001:31680
Prade-Tarrant complex, 2 to 5 percent slopesPrC31547374308dkhgtx60720001:31680
Tarrant-Eckrant complex, 0 to 2 percent slopesTeA25719374316dkhqtx60720001:31680

Map of Series Extent

Approximate geographic distribution of the TARRANT 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 .