Nebraska Soils Field Trip - Virginia Tech
Nebraska Soils Field Trip - Virginia Tech
Nebraska Soils Field Trip - Virginia Tech
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
4th IUSS Soil Classification Conference <strong>Field</strong> Tour Guidebook<br />
RANGE IN CHARACTERISTICS:<br />
Thickness of the mollic epipedon--25 to 61 centimeters (10 to 24 inches)<br />
Depth to relict redoximorphic features--56 to 165 centimeters (22 to 65 inches)<br />
Depth to carbonates--61 to more than 203 centimeters (24 to more than 80 inches)<br />
Content of clay in the particle-size control section (weighted average)--20 to 27 percent<br />
Content of sand in the particle-size control section (weighted average)--less than 5 percent<br />
Clay content decreases regularly with depth<br />
A or Ap horizon:<br />
Hue--10YR<br />
Value--2 or 3<br />
Chroma--1 to 3<br />
Texture--silt loam or silty clay loam<br />
Clay content--20 to 35 percent<br />
Sand content--less than 5 percent<br />
Reaction--moderately acid to neutral<br />
AB or BA horizon (if it occurs):<br />
Hue--10YR<br />
Value--2 or 3<br />
Chroma--2 or 3<br />
Texture--silt loam or silty clay loam<br />
Clay content--20 to 30 percent<br />
Sand content--less than 5 percent<br />
Reaction--slightly acid or neutral<br />
Thickness--0 to 6 inches<br />
Bw horizon:<br />
Hue--10YR<br />
Value--4 or 5<br />
Chroma--3 or 4<br />
Texture--silt loam or silty clay loam<br />
Clay content--20 to 27 percent<br />
Sand content--less than 5 percent<br />
Reaction--slightly acid or neutral<br />
BC horizon (if it occurs):<br />
Hue--10YR<br />
Value--4 or 5<br />
Chroma--3 or 4<br />
Texture--silt loam<br />
Clay content--18 to 26 percent<br />
Sand content--less than 5 percent<br />
Reaction--neutral or slightly alkaline<br />
Thickness--0 to 12 inches<br />
96