Official Series Description


Lab Data Summary

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

There are insufficient data to create the lab data summary figure.


Water Balance

Monthly water balance estimated using a leaky-bucket style model for the HARDHART 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 HARDHART 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 HARDHART 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 HARDHART 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 flats position figure.

Competing Series

Soil series competing with HARDHART 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 HARDHART series and competing. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data .

Click the image to view it full size.

Geomorphic description summaries for the HARDHART 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.

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

Soil series sharing subgroup-level classification with HARDHART, 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 HARDHART 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
Hardhart, stony-Maciver-Nieman, very stony complex, 15 to 45 percent slopes280E13929952332l9x3mt02719791:24000
Hardhart, stony-Maciver-Nieman, very stony complex, 15 to 45 percent slopes280E33330395851r3ttmt60219631:20000
Farlin-Hardhart, stony-Rock outcrop complex, 25 to 60 percent slopes264F743039580wcj1mt60219631:20000
Hardhart-Farlin, stony-Checkerboard complex, 4 to 15 percent slopes164D373039570pd3jmt60219631:20000
Hardhart-Checkerboard complex, 8 to 25 percent slopes, bouldery364E1730395861r3yzmt60219631:20000
Farlin, stony-Hardhart-Checkerboard, stony complex, 15 to 35 percent slopes664E173039578pghvmt60219631:20000
Farlin-Hardhart, stony-Checkerboard, extremely stony complex, 15 to 60 percent slopes764F103039579pgvymt60219631:20000
Hardhart, very stony-Tropal-Rock outcrop complex, 15 to 50 percent slopes9F299724037792lpb8mt60520071:24000
Hardhart, very stony, Levengood, stony-Rock outcrop complex, 8 to 35 percent slopes904E181924038152lpcfmt60520071:24000
Hardhart, very stony-Tropal, very stony-Rock outcrop complex, 4 to 15 percent slopes9D6724037782lpb7mt60520071:24000
Henneberry, very stony-Rock outcrop-Hardhart, very stony complex, 25 to 60 percent slopes271F19249628020kx9mt60520071:24000
Hardhart, very stony-Tropal-Rock outcrop complex, 15 to 50 percent slopes9F18237796653vqzhmt61220111:24000
Henneberry, very stony-Rock outcrop-Hardhart, very stony complex, 25 to 60 percent slopes271F9598186425620kx9mt61220111:24000
Hardhart, very stony, Levengood, stony-Rock outcrop complex, 8 to 35 percent slopes904E4792185995920ffpmt61220111:24000
Elispring-Hardhart, very stony-Rock outcrop complex, 15 to 50 percent slopes273F3954186425720kxbmt61220111:24000
Hardhart, very stony-Tropal, very stony-Rock outcrop complex, 4 to 15 percent slopes9D327116866141tm1xmt61220111:24000
Hardhart, very stony-Tropal-Rock outcrop complex, 15 to 50 percent slopes9F17512520816vqzhmt61420121:24000
Henneberry, very stony-Rock outcrop-Hardhart, very stony complex, 25 to 60 percent slopes271F1621251743220kx9mt61420121:24000
Elispring-Hardhart, very stony-Rock outcrop complex, 15 to 50 percent slopes273F1558249295920kxbmt61420121:24000
Ettienridge, stony-Hardhart, stony families-Rock outcrop complex, 8 to 35 percent slopes, stony6164E9130941142w750mt63019911:24000
Hardhart, rubbly-Checkerboard, very rubbly families-Rock outcrop complex, 45 to 70 percent slopes6164G7630941062v1n1mt63019911:24000
Hardhart, rubbly-Checkerboard, very rubbly families-Rock outcrop complex, 45 to 70 percent slopes6164G737328336402v1n1mt6321:24000
Hardhart, stony-Knep families, complex, 20 to 60 percent slopes1181F687626098402r88lmt6321:24000
Farlin-Hardhart, stony-Rock outcrop complex, 25 to 60 percent slopes264F537423927972l9x0mt6321:24000
Hardhart, stony-Maciver-Nieman, very stony complex, 15 to 45 percent slopes280E488123928002l9x3mt6321:24000
Ettienridge, stony-Hardhart, stony families-Rock outcrop complex, 8 to 35 percent slopes, stony6164E277029110312w750mt6321:24000
Hardhart-Checkerboard complex, 8 to 25 percent slopes, bouldery364E247723928072l9xbmt6321:24000
Farlin, stony-Hardhart-Checkerboard, stony complex, 15 to 35 percent slopes664E155924862732pg5cmt6321:24000
Hardhart-Farlin, stony-Checkerboard complex, 4 to 15 percent slopes164D82023927792l9wfmt6321:24000
Farlin-Hardhart, stony-Checkerboard, extremely stony complex, 15 to 60 percent slopes764F8092604444pgvymt6321:24000
Findon, stony-Checkerboard, very-stony, Hardhart, stony-complex, 25 to 60 percent slopes664F65523928282l9y0mt6321:24000
Farlin-Hardhart, stony-Rock outcrop complex, 25 to 60 percent slopes264F7270815425wcj1mt63720141:24000
Farlin, stony-Hardhart-Checkerboard, stony complex, 15 to 35 percent slopes664E3480639556pghvmt63720141:24000
Hardhart-Checkerboard complex, 8 to 25 percent slopes, bouldery364E292016125261r3yzmt63720141:24000
Farlin-Hardhart, stony-Checkerboard, extremely stony complex, 15 to 60 percent slopes764F1941639900pgvymt63720141:24000
Hardhart-Farlin, stony-Checkerboard complex, 4 to 15 percent slopes164D1918637252pd3jmt63720141:24000
Findon, stony-Checkerboard, very-stony, Hardhart, stony-complex, 25 to 60 percent slopes664F126116126751r43smt63720141:24000
Hardhart, stony-Maciver-Nieman, very stony complex, 15 to 45 percent slopes280E120516123971r3ttmt63720141:24000
Owenspring-Hardhart-Philipsburg complex, 2 to 8 percent slopes358C854780864v6k5mt63720141:24000
Hardhart, stony-Knep families, complex, 20 to 60 percent slopes1181F8829796722r88lmt63720141:24000
Hardhart, rubbly-Checkerboard, very rubbly families-Rock outcrop complex, 45 to 70 percent slopes6164G11130941362v1n1mt65719901:24000
Ettienridge, stony-Hardhart, stony families-Rock outcrop complex, 8 to 35 percent slopes, stony6164E1030941442w750mt65719901:24000
Hanson, stony - Kitchell, extremely stony -Hardhart, stony Complex,35 to 70 percent slopes4702F31311567405834mt6691:24000
Woosley, stony-Hardhart, very bouldery-Bavdark like, complex, 4 to 35 percent slopes5527E1152696047rc94mt6691:24000
Hardhart-Starley association, 10 to 60 percent slopes1473314361138d3smwy63319871:24000

Map of Series Extent

Approximate geographic distribution of the HARDHART 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 .