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A tale of two soils in Warren County, MS

A tale of two soils in Warren County, MS. James Lindsay SWS5716C-Pedology Spring 2012. Soils are located in the Memphis- Natchez-Adler association: Well Drained and moderately well drained soils of hilly loessal uplands and local silty alluvium. Mississippi.

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A tale of two soils in Warren County, MS

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  1. A tale of two soils inWarren County, MS James Lindsay SWS5716C-Pedology Spring 2012

  2. Soils are located in the Memphis- Natchez-Adler association: Well Drained and moderately well drained soils of hilly loessal uplands and local silty alluvium

  3. Mississippi • State soil is the Natchez Silt Loam • Occurs in ~.6% of state • Inseptisols • OchricEpipedon • Cambric horizon

  4. Soil Survey • MnF2: Memphis and Natchez Silt Loam • Annual PPT: 53-62 • Annual Temp: 61-66 • Slope: 17-40% MnF2 Site 2 Site 1

  5. Site 1- Overview 2.5 m • Forested • Stream Bank • Gullied Land

  6. Site 1- Profile • H1-A1- Silt Loam, 10yr 4/3, Wk fine Gr, redox con and dep • H2-A2- Silt Loam, 10yr 5/3, Wk mdAbk, redox con and dep, Cf -3% • H3-Bw- Silt Loam, 10yr 5/3, Mo VF abk, redox con dep 25% 10yr5/8 and 10%10yr 4/1 • H4-Bg- Silt Loam, 10yr 5/2, Mo M abk, redox con and dep matrix,50% 10yr5/8 and 7%10yr 2/1 • H5-Bw1- Silt Loam, 10yr 4/3, Mo C abk, redoxcon and dep, 25% 10yr 3/8 and 2%10yr 2/1 • H6-Bw2 Silt Loam, 10yr 5/3, Mo C abk, redox con and dep, 25% 10yr5/8 58 96 162 203 236 254

  7. Site 1 redox features H2 H5 H4 H6

  8. Site 2 Overview • Forested • Gullied land • Top of slope • 2-6% grade

  9. Site 2 Profile • H1-A1- Silt Loam, 7.5yr 3/2, Mo Cr Gr, earthworms • H2-A2- Silt Loam, 10yr 4/4, Wk Cr Gr • H3-Bt1- Silt Loam, 10yr 4/3, Mo M Sbk, Clay Skins • H4-Bt2- Silt Clay loam, 7.5yr 4/6, Mo M Sbk, • H5-C- 10yr 4/6, Mo C Sbk, no roots 8 20 28 66 122

  10. Site 2 Particle Size

  11. Comparison • Site 1 – similar position to Soil C from Midterm • Infiltration Rate: Low • Hydraulic Cond: Mod • Available Water: High • SHW: 50 to <100 • SI-B: 2, Sep 3, R2 • Position: Drainageway • PM: Fluvial/Eolian Loess • SS: Nearly Level • SR: Medium • EP: Medium • Classification • Epipedon: Umbric • Subsurface: None • Order: Alfisol • Site 2 – similar position to Soil A from Midterm • Infiltration Rate: Mod • Hydraulic Cond: Mod • Available Water: High • SHW: 150 • SI-B: 1, Sep 1, R1 • Position: Upland • PM: Eolian Loess • SS: Nearly Level • SR: Very slow • EP: Low • Classification • Epipedon: None • Subsurface: Argillic • Order: Alfisol

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