Official Series Description


Lab Data Summary

Aggregate lab data for the HELENA soil series. This aggregation is based on all pedons with a current taxon name of HELENA, 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 HELENA 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
136VPI0251V1984-VA081-251Helena3Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties36.601593,-77.7062531
136VPI0252V1984-VA081-252Helena1Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties36.5819321,-77.6664429

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the HELENA 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 HELENA 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 HELENA 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 HELENA 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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Competing Series

Soil series competing with HELENA 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 HELENA 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 HELENA 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 mountains figure.

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Click the image to view it full size.

Soil series sharing subgroup-level classification with HELENA, 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. NC-2010-09-28-07 | Rutherford County - 1997

    Typical relationship of soils, landform position, and parent material in the Cecil-Pacolet general soil map unit (Soil Survey of Rutherford County, North Carolina; 1997).

  2. NC-2012-02-07-29 | Lincoln County - January 1995

    Relationship of soils and parent material in the Pacolet-Madison-Rion general soil map unit (Soil Survey of Lincoln County, North Carolina; January 1995).

Map Units

Map units containing HELENA 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
Helena sandy loam, eroded, slopingHaC219212272043pqal01719571:20000
Helena sandy loam, rolling phaseHc1437329264c1mfal05119481:20000
Helena sandy loamHa790329262c1mcal05119481:20000
Helena loamy sandHb239329263c1mdal05119481:20000
Helena sandy loam, 6 to 10 percent slopesHyC2835124154455zga02119761:20000
Helena sandy loam, 2 to 6 percent slopesHyB1805124153455yga02119761:20000
Helena sandy loam, 6 to 10 percent slopesHzC6401018584135xkga03520031:24000
Helena sandy loam, 2 to 6 percent slopesHzB470101858331l92ga03520031:24000
Helena sandy loam, 2 to 10 percent slopesHYC1175124202457jga06719691:15840
Helena soils, 6 to 10 percent slopes, severely erodedHYC322012624547cfga09719601:15840
Helena sandy loam, 6 to 10 percent slopes, erodedHYC218012624447cdga09719601:15840
Helena sandy loam, 2 to 6 percent slopes, erodedHYB216012624347ccga09719601:15840
Helena loamy sand, 6 to 10 percent slopesHnC747525804832qfl7ga13320111:24000
Helena loamy coarse sand, 2 to 6 percent slopesHeB582625804822qfl6ga13320111:24000
Mecklenburg-Prosperity-Helena complex, 15 to 25 percent slopes, moderately erodedMcE2208625804892qflfga13320111:24000
Prosperity-Helena-Bush River complex, 6 to 15 percent slopesPrD81725804992qflrga13320111:24000
Helena sandy loam, 2 to 6 percent slopesHYB22063995531l92ga13519661:15840
Appling-Helena complex, 6 to 10 percent slopes, moderately erodedApC24901426154sdhga21119981:24000
Helena sandy clay loam, 6 to 10 percent slopes, severely erodedHzC33651426194sdmga21119981:24000
Helena sandy loam, 2 to 6 percent slopes, moderately erodedHyB22851426134sdfga21119981:24000
Helena sandy clay loam, 2 to 6 percent slopes, severely erodedHzB3451426174sdkga21119981:24000
Helena sandy loam, 2 to 6 percent slopesHaB114012488631l92ga22119841:20000
Wateree-Helena complex, 10 to 15 percent slopesWaD12525112352m7y5ga22320101:12000
Wateree-Helena complex, 6 to 10 percent slopesWaC10525112342m7y4ga22320101:12000
Helena sandy loam, 2 to 6 percent slopesHaB55251118531l92ga22320101:12000
Helena sandy loam, 2 to 6 percent slopes, erodedHYB221201249614610ga25519621:15840
Helena sandy clay loam, 2 to 6 percent slopes, severely erodedHZB35151249634612ga25519621:15840
Helena sandy clay loam, 6 to 10 percent slopes, severely erodedHZC33251249644613ga25519621:15840
Helena sandy loam, 6 to 10 percent slopes, erodedHYC22351249624611ga25519621:15840
Helena complex, 6 to 10 percent slopes, erodedHOC278101252174698ga60419721:20000
Helena sandy loam, 2 to 6 percent slopes, erodedHYB245101252184699ga60419721:20000
Helena sandy loam, 2 to 10 percent slopesHYC355531343ktx3ga62219671:20000
Helena loamy coarse sand, 2 to 6 percent slopesHeB908512556246ndga62819771:20000
Helena loamy coarse sand, 6 to 10 percent slopesHeC848012556346nfga62819771:20000
Helena sandy loam, 2 to 6 percent slopesHyB169512560931l92ga62919761:20000
Helena sandy loam, 6 to 10 percent slopesHyC39012561046pyga62919761:20000
Helena sandy loam, 6 to 10 percent slopesHaC603012654347p1ga63019951:20000
Helena sandy loam, 2 to 6 percent slopesHaB373012654247p0ga63019951:20000
Helena loamy coarse sand, 2 to 6 percent slopesHnB994026390612rj3dga63920121:24000
Prosperity-Helena-Bush River complex, 6 to 15 percent slopesPsD711526390892rj4gga63920121:24000
Helena loamy sand, 6 to 10 percent slopesHoC680526390622rj3fga63920121:24000
Prosperity-Helena-Bush River complex, 2 to 6 percent slopesPsB295026390882rj4fga63920121:24000
Prosperity-Helena complex, 15 to 25 percent slopes, stonyPrE204026390872rj4dga63920121:24000
Helena sandy loam, 2 to 6 percent slopesHYB525012576831l92ga64219671:15840
Helena sandy loam, 6 to 10 percent slopesHeC5460127084487hga64519951:12000
Helena sandy loam, 2 to 6 percent slopesHeB285512708331l92ga64519951:12000
Helena sandy loam, 10 to 15 percent slopesHeD2270127085487jga64519951:12000
Helena sandy loam, 2 to 6 percent slopesHaB59012735731l92ga64919921:12000
Helena sandy loam, 6 to 10 percent slopesHeC1645747865t36pga65520121:24000
Helena sandy loam, 2 to 6 percent slopesHeB123174786431l92ga65520121:24000
Helena sandy loam, 2 to 6 percent slopesHeB2480830503452xn56nc00120171:12000
Helena sandy loam, 6 to 10 percent slopesHeC1564230503462xn57nc00120171:12000
Helena-Urban land complex, 2 to 6 percent slopesHfB194730503482xn59nc00120171:12000
Helena-Urban land complex, 6 to 10 percent slopesHfC32230503492xn5bnc00120171:12000
Helena sandy loam, 10 to 15 percent slopesHeD14030503472xn58nc00120171:12000
Helena sandy loam, 2 to 6 percent slopesHeB787129739182wx27nc03320161:24000
Helena sandy loam, 6 to 10 percent slopesHeC608729739192wx28nc03320161:24000
Helena sandy loam, 10 to 15 percent slopesHeD110529739172wx26nc03320161:24000
Helena sandy loam, 2 to 6 percent slopesHeB245714855831lvw1nc03720051:24000
Helena sandy loam, 6 to 10 percent slopesHeC85514855851lvw3nc03720051:24000
Helena-Worsham complex 1 to 6 percent slopesHeB20611170683xtdnc04520001:24000
Helena sandy loam, 2 to 6 percent slopesHeB32631123173rw4nc06319711:15840
Helena sandy loam, 6 to 10 percent slopesHeC10021123183rw5nc06319711:15840
Helena sandy loam, 2 to 6 percent slopesHeB229871125973s55nc06919971:24000
Helena sandy loam, 1 to 6 percent slopesHeB24251126453s6qnc07119851:24000
Helena-Urban land complex, 1 to 6 percent slopesHuB5701126463s6rnc07119851:24000
Helena sandy loam, 2 to 6 percent slopesHeB177601127653sblnc07719931:24000
Helena sandy loam, 6 to 10 percent slopesHeC8551127663sbmnc07719931:24000
Helena-Sedgefield complex, 0 to 6 percent slopesHhB428624331252mnvxnc08119751:20000
Helena sandy loam, 6 to 10 percent slopesHeC149724331212mnvsnc08119751:20000
Helena sandy loam, 0 to 3 percent slopesHeA39621130443smlnc08319951:24000
Helena fine sandy loam, 2 to 8 percent slopesHaB2511131073spmnc08519841:24000
Helena sandy loam, 1 to 6 percent slopesHeB13101136293t7gnc10919891:24000
Helena sandy loam, 2 to 8 percent slopesHeB108471136713t8tnc11919771:24000
Helena-Urban land complex, 2 to 8 percent slopesHuB18351136723t8vnc11919771:24000
Helena coarse sandy loam, 2 to 6 percent slopesHeB9291109093qdqnc12719841:24000
Helena sandy loam, 1 to 6 percent slopesHeB2691140463tnxnc13119881:24000
Helena sandy loam, 2 to 8 percent slopesHeB135841141053tqtnc13519751:20000
Helena-Sedgefield complex, 0 to 2 percent slopesHhA195524507502n86gnc13519751:20000
Helena sandy loam, 2 to 6 percent slopesHeB1139824393042mw97nc14519871:24000
Helena-Sedgefield sandy loams, 2 to 6 percent slopesHfB53871142583twrnc14519871:24000
Helena sandy loam, 6 to 10 percent slopesHeC233524393052mw98nc14519871:24000
Helena sandy loam, 2 to 6 percent slopesHeB58221174503y6qnc15119981:24000
Helena sandy loam, 6 to 10 percent slopesHeC47551174513y6rnc15119981:24000
Helena sandy loam, 2 to 8 percent slopesHeB3724305252ml51nc15719831:24000
Helena sandy loam, 1 to 6 percent slopesHeB42381149853vn6nc15919961:24000
Helena-Worsham complex, 1 to 6 percent slopesHeB15971176293ydhnc16119971:24000
Helena fine sandy loam, 2 to 8 percent slopesHeB19841153553w14nc17919911:24000
Helena sandy loam, 2 to 8 percent slopesHeB34961176773yg1nc18119771:20000
Helena sandy loam, 2 to 6 percent slopesHeB1210425385072qqgqnc18319661:24000
Helena sandy loam, 2 to 8 percent slopesHnB459124550002ndmknc18520091:24000
Helena sandy loam, 8 to 15 percent slopesHnC360924550012ndmlnc18520091:24000
Helena sandy loam, 2 to 6 percent slopesHeB242724549982ndmhnc18520091:24000
Helena sandy loam, 6 to 10 percent slopesHeC84824549992ndmjnc18520091:24000
Helena sandy loam, 2 to 6 percent slopesHeB2504115500417rw6sc00119761:20000
Helena sandy loam, 2 to 10 percent slopes, erodedHaC23091320884ffxsc02119601:20000
Helena sandy loam, 2 to 6 percent slopesHaB23901321884fk4sc02319771:20000
Helena sandy loam, 2 to 6 percent slopesHeB25711298574c3ysc03719781:20000
Helena sandy loam, 6 to 10 percent slopesHeC5331298584c3zsc03719781:20000
Helena sandy loam, 2 to 6 percent slopesHaB23601299114c5psc03919771:20000
Helena sandy loam, 2 to 6 percent slopesHbB9741324874fvssc04519721:20000
Helena loamy sand, 2 to 6 percent slopesHeB26201300534cb8sc04719731:20000
Helena loamy sand, 6 to 10 percent slopesHeC21421300544cb9sc04719731:20000
Helena fine sandy loam, 2 to 6 percent slopes, erodedHaB277141302954cl2sc05719671:20000
Helena fine sandy loam, 6 to 10 percent slopes, erodedHaC259701302964cl3sc05719671:20000
Helena fine sandy loam, 2 to 10 percent slopes, severely erodedHaC326761302974cl4sc05719671:20000
Helena fine sandy loam, 2 to 6 percent slopesHaB7741302944cl1sc05719671:20000
Helena sandy loam, 2 to 6 percent slopesHeB4123943452lchysc05719671:20000
Helena sandy loam, 2 to 6 percent slopesHeB11091305164ct6sc06319721:20000
Helena sandy loam, 6 to 10 percent slopesHeC7751305174ct7sc06319721:20000
Helena sandy loam, 2 to 6 percent slopesHeB9448639238pg5lsc07120051:24000
Prosperity-Bush River-Helena complex, 2 to 6 percent slopesPmB5362639422pgcjsc07120051:24000
Helena sandy loam, 6 to 10 percent slopesHeC4304639239pg5msc07120051:24000
Prosperity-Bush River-Helena complex, 6 to 10 percent slopesPmC1827639423pgcksc07120051:24000
Helena sandy loam, 2 to 6 percent slopesHlB2791310404dc3sc07719671:20000
Helena sandy loam, 2 to 6 percent slopesHeB15281311994dj7sc08119601:20000
Worsham sandy loam, 0 to 6 percent slopesWoB9791312504dkwsc08119601:20000
Helena sandy loam, 2 to 6 percent slopes, erodedHeB24971312004dj8sc08119601:20000
Helena sandy loam, 6 to 10 percent slopes, erodedHeC24801312024djbsc08119601:20000
Helena sandy loam, 6 to 10 percent slopesHeC3391312014dj9sc08119601:20000
Appling sandy loam, 10 to 20 percent slopes, erodedApD22741311534dgrsc08119601:20000
Colfax sandy loam, 2 to 6 percent slopesCoB1391311684dh7sc08119601:20000
Helena sandy loam, 2 to 6 percent slopes, moderately erodedHeB2463725138482lq20sc09120131:15840
Helena sandy loam, 6 to 10 percent slopes, moderately erodedHeC2327525138502lq28sc09120131:15840
Helena sandy loam, 2 to 6 percent slopesHeB251625138472lq1xsc09120131:15840
Helena sandy loam, 6 to 10 percent slopesHeC197025138492lq25sc09120131:15840
Helena sandy loam, 2 to 6 percent slopesHeB3481302014ch1sc61019851:20000
Helena fine sandy loam, 2 to 7 percent slopes11B68651180953ywjva00719941:24000
Helena fine sandy loam, 7 to 15 percent slopes11C5781180963ywkva00719941:24000
Helena sandy loam, 2 to 8 percent slopes16B3144224207422m7zgva02520071:24000
Helena sandy loam, 8 to 15 percent slopes16C861524207432m7zhva02520071:24000
Helena-Appling complex, 2 to 15 percent slopes9C294712103041y6va03319961:24000
Helena fine sandy loam, 2 to 6 percent slopes, erodedHfB220761187373zk7va03719701:15840
Helena fine sandy loam, 6 to 10 percent slopes, erodedHfC211661187383zk8va03719701:15840
Helena fine gravelly sandy loam, 2 to 6 percent slopesHeB4241187353zk5va03719701:15840
Helena fine gravelly sandy loam, 6 to 10 percent slopes, erodedHeC22261187363zk6va03719701:15840
Appling-Helena complex, 7 to 15 percent slopes2C2132215873911q8t5va04920051:24000
Helena sandy loam, 2 to 7 percent slopes21B677315874191q8v2va04920051:24000
Enon-Helena complex, 2 to 7 percent slopes16B445915874091q8trva04920051:24000
Enon-Helena complex, 7 to 15 percent slopes16C431415874101q8tsva04920051:24000
Helena sandy loam, 7 to 15 percent slopes21C295515874201q8v3va04920051:24000
Enon-Helena complex, 7 to 15 percent slopes, very stony17C63915874131q8twva04920051:24000
Enon-Helena complex, 15 to 25 percent slopes16D43815874111q8ttva04920051:24000
Enon-Helena complex, 2 to 7 percent slopes, very stony17B31715874121q8tvva04920051:24000
Helena fine sandy loam, undulating phaseHc143112178842qnva06519501:15840
Helena fine sandy loam, rolling phaseHb22712178742qmva06519501:15840
Helena fine sandy loam, eroded rolling phaseHa18712178642qlva06519501:15840
Helena gravelly coarse sandy loam, 2 to 7 percent slopes20B3932695356rbkvva08119861:15840
Helena-Colfax complex, 2 to 7 percent slopes35B67401191093zy7va08519761:15840
Helena-Orange complex, 7 to 15 percent slopes36C8601191103zy8va08519761:15840
Helena fine sandy loam, 2 to 6 percent slopes, erodedHeB21316119237402cva08719731:15840
Helena fine sandy loam, 2 to 6 percent slopesHeB1089119236402bva08719731:15840
Helena fine sandy loam, 6 to 15 percent slopes, erodedHeC2420119238402dva08719731:15840
Helena sandy loam, 6 to 10 percent slopes, eroded10C23408119442408zva11119791:20000
Helena sandy loam, 1 to 6 percent slopes10B2446119441408yva11119791:20000
Helena fine sandy loam, 2 to 6 percent slopesHaB750311957340f6va11719901:24000
Helena-Worsham complex, 6 to 12 percent slopesHbC611011957540f8va11719901:24000
Enon-Vance-Helena soils, undulating phasesEe730812188842twva13519561:20000
Enon-Vance-Helena soils, eroded rollingEh454012189142tzva13519561:20000
Enon-Vance-Helena soils, rolling phasesEg338212189042tyva13519561:20000
Helena fine sandy loam, undulating phaseHa118412189542v3va13519561:20000
Enon-Vance-Helena soils, eroded hilly phasesEl36012189342v1va13519561:20000
Helena sandy loam, 2 to 8 percent slopes916B28424531492nbpvva13519561:20000
Enon-Vance-Helena soils, hilly phasesEk25312189242v0va13519561:20000
Enon-Vance-Helena soils, eroded undulating phasesEf13412188942txva13519561:20000
Helena fine sandy loam, rolling phaseHc13312189742v5va13519561:20000
Helena fine sandy loam, eroded rolling phaseHd10012189842v6va13519561:20000
Helena fine sandy loam, eroded undulating phaseHb4212189642v4va13519561:20000
Helena sandy loam, 8 to 15 percent slopes916C1424531502nbpwva13519561:20000
Helena-Enon complex, 2 to 7 percent slopes13B2050120180411sva14519841:15840
Helena fine sandy loam, undulating phaseHb70911202554146va14719501:20000
Helena fine sandy loam, rolling phaseHa29411202544145va14719501:20000
Helena loam, 7 to 15 percent slopes16C108117230821vv09va18320061:24000
Helena loam, 2 to 7 percent slopes16B97117230801vv07va18320061:24000
Helena fine sandy loam, 2 to 6 percent slopesHaB88212071241lyva63119731:15840
Helena fine sandy loam, 6 to 15 percent slopesHaC27212071341lzva63119731:15840
Helena loam, 2 to 7 percent slopes9B564224817732p9h6va65319911:24000
Helena sandy loam, 2 to 8 percent slopes916B60724818772p9lkva65319911:24000
Helena loam, 7 to 15 percent slopes9C33424817752p9h8va65319911:24000
Helena sandy loam, 8 to 15 percent slopes916C3124818782p9llva65319911:24000

Map of Series Extent

Approximate geographic distribution of the HELENA 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 .