Nebraska Soils Field Trip - Virginia Tech

More documents

Recommendations

Info

4th IUSS Soil Classification Conference Field Tour Guidebook Site 2a – Onawa Series One of the soils we will observe at the Hitchcock Nature Center is the Onawa series taken from the Missouri River flood plain. We collected the soil profiles and transported them to this location to save time during the tour and avoid possible flooding. Onawa soils are very deep, somewhat poorly drained soils on flood plains. These soils formed in clayey alluvium over loamy alluvium. The loamy materials in the lower part of the profile represent the source materials for the loess hills formation at the Hitchcock Nature Center. Flooding on the Missouri River in in 2011 lasted from May through August along much of its reach closing roads, major highways, railways disrupting transportation around the region. At right, an aerial photo of the Interstate 29 and Interstate 680 intersection shows the extent of the flooding across the valley. When the floodwaters receded, I-29 and I-680 interchange was not structurally damaged and was reopened, but thick silty deposits covered the road and right of ways the kill zone due to inundation is evident on the overpass embankment (center). Upon drying, the silty sediments were again susceptible to the wind erosion and are carried eastward into the Hitchcock Recreation Area (below). The flooding, sedimentation, erosion, and deposition cycles that created the Loess Hills of western Iowa clearly continues today. 72
4th IUSS Soil Classification Conference Field Tour Guidebook PEDON DESCRIPTION Print Date: 03/12/2012 Country: USA Description Date: 11/10/1994 State: Nebraska Describer: Stephen L. Hartung, Francis Belohlavy, County: Washington Mark Kuzila, Neal Stolpe Site ID: 94NE177015 MLRA: 107 -- Iowa and Missouri Deep Loess Hills Site Note: Soil Survey Area: NE177 -- Washington County, Nebraska Pedon ID: 94NE177015 Map Unit: 7880 – Onawa silty clay, occasionally flooded Pedon Note: The Ap horizon (0-6 inch) has scattered fragments of snail shells. The Cg1 (6-10 inch) has few snail shells. The texture of the Ap through Cg3 may be silty clay rather than clay. The Quad Name: Loveland, Iowa Cg1, Cg2, and Cg3 all appear to have some form of stratification but the strata seem to have been mostly obscured by the shrink-swell of the clays. Lab Source ID: SSL Lab Pedon #: 95P0326 Legal Description: 900 feet east and 300 feet south of the northwest corner of Section 21, Township 17N , Range 13E Soil Name as Described/Sampled: Onawa Latitude: 41 degrees 26 minutes 8.00 seconds north Soil Name as Correlated: Classification: Clayey over loamy, smectitic over Longitude: 95 degrees 57 minutes 37.00 seconds west mixed, superactive, calcareous, mesic Aquertic Udifluvents Datum: Pedon Type: within range of series UTM Zone: Pedon Purpose: full pedon description UTM Easting: Taxon Kind: series UTM Northing: Associated Soils: Albaton, Luton Physiographic Division: Primary Earth Cover: Crop cover Physiographic Province: Secondary Earth Cover: Physiographic Section: Existing Vegetation: State Physiographic Area: Parent Material: Local Physiographic Area: Bedrock Kind: Geomorphic Setting: river valley flood plain Bedrock Depth: Upslope Shape: linear Bedrock Hardness: Cross Slope Shape: linear Bedrock Fracture Interval: Particle Size Control Section: 25 to 100 cm. Surface Fragments: Description origin: Converted from PDP 3.x Description database: NSSL Diagnostic Features: ochric epipedon 0 to 15 cm free carbonates 15 to 203 cm lithologic discontinuity at 69 cm. 73
Page 1 and 2:
4 th International Union of Soil Sc
Page 3 and 4:
4th IUSS Soil Classification Confer
Page 5 and 6:
Page 7 and 8:
Page 9 and 10:
Page 11 and 12:
Page 13 and 14:
Page 15 and 16:
Page 17 and 18:
Page 19 and 20:
Page 21 and 22:
Page 23 and 24: 4th IUSS Soil Classification Confer
Page 41 and 42: Taxonomic Classifications of surfac
Page 51 and 52: 40° 54' 28'' 40° 54' 15'' Soil Ma
Page 73: 4th IUSS Soil Classification Confer
Page 91 and 92: Seq. # Horizon depth (cm) Tour Book
Page 103 and 104: 41° 24' 55'' 41° 24' 44'' 4th IUS
Page 119 and 120: Seq. # 4th IUSS Soil Classification
Page 121 and 122: Pedon ID: S11NE153001 *** Primary C
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
Seq. # 4th IUSS Soil Classification
Page 133 and 134:
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
Page 153 and 154:
41° 9' 27'' 41° 9' 12'' 4th IUSS
Page 155 and 156:
Page 157 and 158:
Page 159 and 160:
Seq. # Horizon depth (cm) Tour Book
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
Page 167 and 168:
Page 169 and 170:
Page 171 and 172:
Page 173 and 174:
Page 175 and 176:
Soil Taxonomy Fine-loamy, mixed, ac
Page 177 and 178:
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
Page 185 and 186:
Page 187 and 188:
Page 189 and 190:
Page 191 and 192:
show all

Nebraska Soils Field Trip - Virginia Tech

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?