Nebraska Soils Field Trip - Virginia Tech

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4th IUSS Soil Classification Conference <strong>Field</strong> Tour Guidebook A--0 to 18 centimeters; black (10YR 2/1) silt loam; moderate fine granular, and moderate fine subangular blocky structure; friable, soft, nonsticky, nonplastic; many fine roots; common very fine and fine interstitial pores; clear wavy boundary. AB--18 to 30 centimeters; 80 percent black (10YR 2/1) and 20 percent brown (10YR 4/3) silt loam; moderate fine subangular blocky structure; friable, soft, nonsticky, nonplastic; many fine roots; common very fine and fine interstitial pores; clear wavy boundary. Bw1--30 to 52 centimeters; dark yellowish brown (10YR 4/4) silt loam; moderate fine subangular blocky, and moderate medium subangular blocky structure; friable, slightly hard, slightly sticky, slightly plastic; many fine roots; common fine tubular and few very fine tubular pores; 2 percent black (10YR 2/1) organic stains; gradual smooth boundary. Bw2--52 to 79 centimeters; dark yellowish brown (10YR 4/4) silt loam; moderate medium subangular blocky structure; friable, slightly hard, slightly sticky, slightly plastic; common fine roots; common fine tubular and few very fine tubular pores; gradual smooth boundary. Bw3--79 to 99 centimeters; dark yellowish brown (10YR 4/4) silt loam; weak coarse subangular blocky structure; friable, slightly hard, slightly sticky, slightly plastic; common very fine roots; few very fine and fine tubular pores; gradual smooth boundary. BC--99 to 117 centimeters; dark yellowish brown (10YR 4/4) silt loam; weak coarse prismatic parts to weak medium subangular blocky structure; friable, slightly hard, slightly sticky, slightly plastic; common very fine roots; few very fine tubular pores. 88
Seq. # Horizon depth (cm) Tour Book Tour Soil Taxonomy World Reference Base Diagnostic characteristics of Soil Taxonomy Soil Taxonomy World Reference Base 1 0 18 A ~ mollic epipedon mollic horizon mineral soil material mineral material 2 18 30 AB ~ mollic epipedon mollic horizon mineral soil material mineral material 3 30 52 Bw1 ~ cambic horizon cambic horizon mineral soil material mineral material 4 52 79 Bw2 ~ cambic horizon cambic horizon mineral soil material mineral material 5 79 99 Bw3 ~ cambic horizon cambic horizon mineral soil material mineral material 6 99 117 BC ~ mineral soil material mineral material WRB 1.) Horizon designation Diagnostic horizon Diagnostic characteristics or properties Diagnostic materials Taxonomic Classifications of Monona pedon (12N0013) Soil Taxonomy 4th IUSS Soil Classification Conference <strong>Field</strong> Tour Guidebook Fine-silty, mixed, superactive, mesic Typic Hapludolls Haplic Phaeozems (Siltic) 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 Soil Survey Staff. 2010. Keys to Soil Taxonomy, 11th ed. USDA-Natural Resources Conservation Service, Washington, DC. Diagnostic properties of World Reference Base IUSS Working Group WRB. 2007. World Reference Base for Soil Resources 2006, first update 2007. World Soil Resources Reports No.103. FAO, Rome. 89
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Soil Taxonomy Fine-loamy, mixed, ac
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Nebraska Soils Field Trip - Virginia Tech

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