Nebraska Soils Field Trip - Virginia Tech

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Taxonomic Classifications of SND (12N0009) Soil Taxonomy KST, 11th ed. 2010 Fine-silty, mixed, superactive, nonacid, mesic Typic Udifluvents ICOMANTH (2-22-2012) Fine-silty, spolic, mixed, superactive, mesic Anthroportic Eutrudepts 3., 4.) WRB Haplic Cambisols (Humic, Hypereutric, Siltic, Escalic?, Transportic) 5., 6., 7.) 1.) 2.) 3.) 4.) Soil Survey Staff. 2010. Keys to Soil Taxonomy, 11th ed. USDA-Natural Resources Conservation Service, Washington, DC. IUSS Working Group WRB. 2007. World Reference Base for Soil Resources 2006, first update 2007. World Soil Resources Reports No.103. FAO, Rome. 5.) Weighted average organic carbon content is 2 percent in upper 50 cm of soil (i.e., Humic qualifier). 6.) Since new material is less than 50 cm thick, the buried soil is classified at the first level. 7.) 4th IUSS Soil Classification Conference Field Tour Guidebook Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service. U.S. Department of Agriculture Handbook 436 These horizons constitute the "surface mantle of new soil material" as defined for buried soils in Chapter 1 of Soil Taxonomy and the Keys to Soil Taxonomy. Their aggregate thickness (47 cm) is within the range of 30 to 50 cm and equals at least half of the total thickness (i.e., 36 cm × 0.5 = 18 cm) of the named diagnostic horizons that are preserved in the buried soil. The current classification (based on KST, 2010) reflects presence of a buried soil. The ICOMANTH classification reflects the presence of human-transported material (HTM) on a constructional anthropogenic landform (landfill) and less than 50 cm of HTM mantling the underlying genetic horizons (formed in an older deposit of HTM). Pedon would classify in either the methanogenic or subsidic class if the proposed control section for human-altered and human-transported material classes extended to 200 cm. Is the Escalic qualifier intended only for agricultural terraces? The Transportic qualifier was used alone without the Novic qualifier to avoid redundancy. Is the Novic qualifier intended for natural parent materials instead of human-made materials? 118
Pedon ID: S11NE153001 *** Primary Characterization Data *** ( Sarpy, Nebraska ) Print Date: May 18 2012 1:51PM Sampled as on Oct 07, 2011: Revised to : SND ; Coarse-silty, mixed, mesic Typic Udifluvent United States Department of Agriculture SSL - Project C2012USNE004 IUSS Tour Natural Resources Conservation Service - Site ID S11NE153001 Lat: 41° 9' 51.94" north Long: 95° 57' 24.76" west NAD83 MLRA: 107B National Soil Survey Center - Pedon No. 12N0009 Soil Survey Laboratory - General Methods 1B1A, 2A1, 2B Lincoln, Nebraska 68508-3866 Layer Horizon Orig Hzn Depth (cm) 12N00026 ^A 12N00027 ^C1 12N00028 ^C2 12N00029 ^Ab 12N00030 ^Bw1b 12N00031 ^Bw2b 12N00032 ^C'3b 12N00033 ^C'4b 4th IUSS Soil Classification Conference Field Tour Guidebook Field Label 1 Field Label 2 Field Label 3 Field Texture Lab Texture 0.0-8.0 S11NE153001-1 8.0-24.0 S11NE153001-2 24.0-47.0 S11NE153001-3 47.0-50.0 S11NE153001-4 50.0-64.0 S11NE153001-5 64.0-83.0 S11NE153001-6 83.0-92.0 S11NE153001-7 92.0- S11NE153001-8 102.0 Pedon Calculations Calculation Name Result Units of Measure Weighted Particles, 0.1-75mm, 75 mm Base 2.737 % wt Volume, >2mm, Weighted Average 0.612 % vol Clay, total, Weighted Average 24.629 % wt Clay, carbonate free, Weighted Average 24.629 % wt CEC Activity, CEC7/Clay, Weighted Average, CECd, Set 4 0.887 (NA) LE, Whole Soil, Summed to 1m 3.4 cm/m Weighted averages based on control section: 25-100 cm SIL SIL SIL SIL SIL SIL SIL SIL SIL SIL SIL SIL SIL SIL SIL SIL PSDA & Rock Fragments -1- -2- -3- -4- -5- -6- -7- -8- -9- -10- -11- -12- -13- -14- -15- -16- -17- (- - - - - Total - - -) (- - Clay - - -) (- - - - Silt - - -) (- - - - - - - - - - - - Sand - - - - - - - - - - -) ( Rock Fragments (mm) ) Clay Silt Sand Fine CO3 Fine Coarse VF F M C VC (- - - - - - - - Weight - --) >2 mm < .002 .05 < < .002 .02 .05 .10 .25 .5 1 2 5 20 .1- wt % Depth .002 -.05 -2 .0002 .002 -.02 -.05 -.10 -.25 -.50 -1 -2 -5 -20 -75 75 whole Layer (cm) Horz Prep (- - - - - - - - - - - - - - - - - - - - - - - - - - % of
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