Official Series Description


Lab Data Summary

Aggregate lab data for the IREDELL soil series. This aggregation is based on all pedons with a current taxon name of IREDELL, 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 IREDELL 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
133AVPI0254V1984-VA081-254Iredell3Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties36.5784035,-77.5986328
133AVPI0255V1984-VA081-255Iredell3Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties36.6119347,-77.5819473
13684P047384GA159004Iredell7Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties33.2136116,-83.7530594
13685P077285SC023001Iredell7Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties34.7874985,-81.1680527
13685P077385SC023002Iredell7Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties34.7833328,-81.1686096
13640A1298S1969SC023001IREDELL7Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties34.6948395,-81.1950989
13640A1302S1969VA109002IREDELL6Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties38.0500488,-78.1663818
136VPI0253V1984-VA081-253Iredell3Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties36.7385178,-77.5944366
136VPI0256V1984-VA081-256Iredell2Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties36.5468292,-77.7060623
136VPI0257V1984-VA081-257Iredell3Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties36.6257095,-77.7112732
n/a84P037784GA159001Iredell5Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Propertiesn/a
n/a84P070284NC063007IREDELL6Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Propertiesn/a
n/a84P070684NC063014IREDELL6Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Propertiesn/a

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the IREDELL 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 IREDELL 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 IREDELL 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 IREDELL 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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Click the image to view it full size.

Competing Series

Soil series competing with IREDELL 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 IREDELL 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 IREDELL 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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Click the image to view it full size.

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 IREDELL, 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. SC-2012-03-14-15 | Cherokee County - July 1962

    Relation of soils to landscape and underlying material in the Wilkes-Lloyd soil association (Soil Survey of Cherokee County, SC; 1962).

  2. SC-2012-03-14-37 | York County - April 1965

    Major soils in association 4 and their relation to the landscape (Soil Survey of York County, SC; 1965).

Map Units

Map units containing IREDELL 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
Iredell soils, eroded, slopingIaC237012272343ptal01719571:20000
Iredell-Wilkes complex, 2 to 10 percent slopesIwC943328508c0v1al02119671:20000
Iredell-Wilkes complex, 0 to 2 percent slopesIwA299328507c0v0al02119671:20000
Iredell-Mecklenburg association, undulatingIMB1284512278743rwal02719711:20000
Iredell fine sandy loam, 2 to 10 percent slopesIrC647124258459bga08919791:15840
Wilkes-Iredell cobbly complex, 6 to 15 percent slopesWHD600639984pgynga13519661:15840
Iredell fine sandy loam, 0 to 6 percent slopesIrB25501269514836ga15919971:24000
Iredell fine sandy loam, 6 to 10 percent slopesIrC3751269524837ga15919971:24000
Iredell sandy loam, 2 to 6 percent slopes, erodedIbB28512470545rrga19919601:15840
Iredell loam, 2 to 6 percent slopesIcB1745125219469bga60419721:20000
Iredell gravelly fine sandy loam, 2 to 6 percent slopes, erodedIaB270012544146jhga61819661:15840
Iredell sandy loam, 2 to 6 percent slopesIrB2709312572646tpga63619751:20000
Iredell sandy loam, 6 to 10 percent slopesIrC1457712572746tqga63619751:20000
Iredell loam, 2 to 6 percent slopesIrB469730503602xn5pnc00120171:12000
Iredell loam, 6 to 10 percent slopesIrC138830503612xn5qnc00120171:12000
Iredell clay loam, 2 to 6 percent slopes, moderately erodedIsB249330503622xn5rnc00120171:12000
Iredell-Urban land complex, 2 to 6 percent slopesIuB7430503632xn5snc00120171:12000
Iredell fine sandy loam, 1 to 6 percent slopesIrB11711145253v5cnc00719991:24000
Iredell loam, 0 to 2 percent slopesIdA60301116503r5mnc02519831:24000
Iredell loam, 2 to 6 percent slopesIdB30851116513r5nnc02519831:24000
Pittsboro-Iredell complex, 2 to 8 percent slopes, stonyPsB483014856701lvyvnc03720051:24000
Iredell fine sandy loam, 2 to 6 percent slopesIrB101714855931lvwcnc03720051:24000
Iredell loam, 1 to 6 percent slopesIrB9751121683rqbnc05719851:24000
Iredell loam, 1 to 6 percent slopesIrB35724325752mn95nc05919881:24000
Iredell loam, 2 to 6 percent slopesIrB36301123223rw9nc06319711:15840
Iredell loam, 6 to 10 percent slopesIrC22191123233rwbnc06319711:15840
Iredell-Urban land complex, 0 to 6 percent slopesIuB3921123243rwcnc06319711:15840
Iredell-Urban land complex, 6 to 10 percent slopesIuC1081123253rwdnc06319711:15840
Iredell loam, 2 to 6 percent slopesIrB107781127693sbqnc07719931:24000
Urban land-Iredell-Creedmoor complex, 2 to 10 percent slopesUrC17791127853sc7nc07719931:24000
Iredell loam, 6 to 10 percent slopesIrC7861127703sbrnc07719931:24000
Iredell-Urban land-Picture complex, 0 to 10 percent slopesIuC6061127713sbsnc07719931:24000
Iredell fine sandy loam, 0 to 4 percent slopesIrB280924331712mnxdnc08119751:20000
Iredell loam, 2 to 6 percent slopesIrB80624243822mcrwnc09720111:12000
Iredell loam, 6 to 10 percent slopesIrC33924243842mcrync09720111:12000
Iredell fine sandy loam, 1 to 8 percent slopesIrB134901136743t8xnc11919771:24000
Iredell fine sandy loam, 0 to 1 percent slopesIrA33691136733t8wnc11919771:24000
Iredell-Urban land complex, 0 to 8 percent slopesIuB19521136753t8ync11919771:24000
Iredell clay loam, 2 to 6 percent slopesIrB14641139093tjhnc12519871:24000
Iredell gravelly loam, 1 to 4 percent slopesIrB28081141113tr0nc13519751:20000
Iredell-Urban land complex, 1 to 8 percent slopesIuB7751141123tr1nc13519751:20000
Iredell gravelly loam, 2 to 6 percent slopesIrB963624412812myc0nc14519871:24000
Iredell loam, 0 to 2 percent slopesIdA111324412792mybync14519871:24000
Iredell fine sandy loam, 8 to 15 percent slopesIrD6124305332ml59nc15719831:24000
Iredell fine sandy loam, 2 to 8 percent slopesIrB4024305322ml58nc15719831:24000
Iredell loam, 1 to 8 percent slopesIrB7021149893vnbnc15919961:24000
Iredell loam, 0 to 3 percent slopesIrA16891153563w15nc17919911:24000
Iredell fine sandy loam, 2 to 8 percent slopesIrB38671176783yg2nc18119771:20000
Sedgefield-Iredell complex, 2 to 8 percent slopesSeB70124550242ndnbnc18520091:24000
Iredell fine sandy loam, 2 to 6 percent slopesIdB5172115501017rwdsc00119761:20000
Iredell variant loam, 0 to 2 percent slopesIvA1484115501117rwfsc00119761:20000
Iredell fine sandy loam, 2 to 6 percent slopesIrB10061320904ffzsc02119601:20000
Iredell fine sandy loam, 6 to 10 percent slopes, erodedIrC26361320914fg0sc02119601:20000
Iredell clay loam, 6 to 10 percent slopes, severely erodedIcC34191320894ffysc02119601:20000
Iredell fine sandy loam, 1 to 6 percent slopesIdB217751321934fk9sc02319771:20000
Iredell fine sandy loam, 1 to 6 percent slopesIdB31551299184c5xsc03919771:20000
Iredell sandy loam, 2 to 6 percent slopesIeB32151300634cblsc04719731:20000
Iredell sandy loam, 0 to 2 percent slopesIeA13111300624cbksc04719731:20000
Iredell complex, 2 to 6 percent slopes, erodedIrB210271303034clbsc05719671:20000
Iredell complex, 6 to 10 percent slopes, erodedIrC22051303044clcsc05719671:20000
Iredell fine sandy loam, 2 to 6 percent slopesIdB2681303794cnssc05919701:20000
Iredell sandy loam, 2 to 6 percent slopesIeB28431307134d0ksc06519731:20000
Iredell sandy loam, 0 to 2 percent slopesIeA6211307124d0jsc06519731:20000
Iredell fine sandy loam, 2 to 6 percent slopesIdB30981314834dtdsc08719701:20000
Iredell stony loam, 2 to 6 percent slopesIrB4761314844dtfsc08719701:20000
Iredell loam, 1 to 6 percent slopesIeB2101302044ch4sc61019851:20000
Iredell loam, 2 to 7 percent slopes8B90471184913z99va01119931:15840
Iredell loam, 7 to 15 percent slopes8C23031184923z9bva01119931:15840
Iredell gravelly sandy loam, 2 to 8 percent slopes18B78524207452m7zkva02520071:24000
Iredell gravelly sandy loam, 8 to 15 percent slopes18C29824207462m7zlva02520071:24000
Iredell loam, 2 to 6 percent slopes, erodedIrB215171187443zkgva03719701:15840
Iredell loam, 6 to 10 percent slopes, erodedIrC213041187453zkhva03719701:15840
Iredell loam, 2 to 6 percent slopesIrB10911187433zkfva03719701:15840
Iredell loam, 2 to 7 percent slopes21B2584695357rbkwva08119861:15840
Iredell clay loam, 7 to 15 percent slopes, severely eroded22C3778695358rbkxva08119861:15840
Orange-Iredell complex, 2 to 7 percent slopes48B18401191273zytva08519761:15840
Iredell-Orange complex, 7 to 15 percent slopes38C8501191123zybva08519761:15840
Iredell sandy loam, 2 to 7 percent slopes, erodedIdB21488119374406sva10919721:15840
Iredell loam, 0 to 2 percent slopesIrA1352119376406vva10919721:15840
Iredell sandy loam, 7 to 15 percent slopes, erodedIdC2789119375406tva10919721:15840
Iredell sandy loam, 2 to 7 percent slopesIdB694119373406rva10919721:15840
Iredell loam, 2 to 7 percent slopesIrB293119377406wva10919721:15840
Iredell silt loam, silty subsoil variantIv271119378406xva10919721:15840
Iredell loam, 1 to 6 percent slopes12B87711194454092va11119791:20000
Iredell loam, 6 to 12 percent slopes, eroded12C273691194464093va11119791:20000
Iredell silt loam, 2 to 7 percent slopesIrB153517008kbzpva11319671:15840
Iredell loam, 1 to 6 percent slopesIrB424311958740fnva11719901:24000
Iredell loam, 6 to 12 percent slopesIrC28211958840fpva11719901:24000
Iredell-Mecklenburg loams, undulating phasesIa32012189942v7va13519561:20000
Iredell-Mecklenburg loams, eroded rolling phasesIc19012190142v9va13519561:20000
Iredell-Mecklenburg loams, rolling phasesIb18112190042v8va13519561:20000
Iredell-Zion fine sandy loams, undulating phasesIb14581202574148va14719501:20000
Iredell-Zion fine sandy loams, rolling phasesIa6001202564147va14719501:20000
Orange-Iredell loams, 2 to 7 percent slopes33B1564120426419qva17719801:15840
Orange-Iredell loams, 7 to 15 percent slopes, eroded33C21119120427419rva17719801:15840
Iredell loam, 2 to 6 percent slopesIrB308212071941m5va63119731:15840
Iredell loam, 6 to 10 percent slopesIrC96512072141m7va63119731:15840
Iredell loam, 6 to 10 percent slopes, erodedIrC222812072241m8va63119731:15840
Iredell loam, 2 to 6 percent slopes, erodedIrB222012072041m6va63119731:15840
Iredell loam, 2 to 7 percent slopes11B758224817822p9hhva65319911:24000
Iredell loam, 7 to 15 percent slopes11C68124817842p9hkva65319911:24000

Map of Series Extent

Approximate geographic distribution of the IREDELL 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 .