SOIL HORIZON ANALYSIS ACROSS A DRAINAGE GRADIENT IN NORTHEASTERN CONNECTICUT Deborah Spalding SWS 5716C April 21, 2011

Study Area Source: Google Maps, Accessed April 9, 2011

Soil Pits Along Gradient Wetland Drumlin Source: Google Maps, Accessed April 9, 2011

Topographic Map Source: University of Connecticut, Map & Geographic Information Center, CT USGS Topographic Map Collections, accessed at 4/1/ m

Source: Topo map with soil pit locations provided by Yale School Forest Manager. Source unknown. Pit 1 Pit 2

Soil Pit #1: Mesic, Forested Site

Soil Pit 1: Mesic, Forested Site Oe 0-2 cm A 2-9 cm AB 9-30 cm Bw cm Bw cm C63-90 cm

Oe A AB Bw1 Bw2 C Soil Pit 1: Mesic, Forested Site

Boun daryStructure Consist.Redoximorphic Features Horizon Lower DepthDist.Texture Coarse Frag. % Dominant ColorGradeShapeMoist Concen Y/N/R 1 Deplet. Y/N/R Matrix Y/N/R Oe2 cmaom10YR 2/2wknn A9 cmcsl510YR 3/4wkgvfrnnn AB30 cmgsl1010YR 3/6wkgvfrnnn Bw150 cmgsl157.5 YR 4/4wksbkvfrn nn Bw263 cmcsl1510YR 4/6wksbkvfrnnn C90 cmcls202.5YR 4/6slsgfrnnn

 Infiltration Rate: High  Hydraulic Conductivity: High  Available Water: Low  Seasonal HWT: >100 cm  Position: Drainageway  Parent Material: Glacial  Slope: Nearly Level 0-2%  Surface Runoff: Very slow  Erosion Potential: Very low  Basement: slight limitations  Septic: slight limitations  Local roads: slight limitations  Charlton Series  Inceptisol  Ochric epipedon  Cambic subhorizon  Well drained, dense glacial till  Unsorted, heterogeneous particle mixture  Very rocky  Prior use likely pasture Soil Pit 1: Mesic, Forested Site

Pit 2: Top Edge of Drumlin

Soil Pit 2: Top Edge of Drumlin Ap cm Bw cm Ap cm Cd cm Bw cm Bw cm

Soil Pit 2: Top Edge of Drumlin

Pit 2: Top Edge of Drumlin Bou nda ryStructure Consist. Redoximorphic Features Horizon Lower Depth Dis t. Textur e Coarse Frag % Dominant ColorGradeShapeMoist Concen Y/N/R 1 Deplet. Y/N/R Matrix Y/N/RCutans Ap117 cmgsl510YR 3/2modgfrnnn Ap240 cmcl510YR 3/2modgfrnnn Bw160 cmgsl1010YR 3/4wkgfrnnn Bw272 cmgsl1010YR 3/4wksbkfrynnSome masses of 10YR 5/6 Bw390 cmgsl1510 YR 3/4wksbkfrnnn Cd120 cm csl152.5 YR 4/3wksbkfirmnnn

 Woodbridge Series  Inceptisol  Umbric epipedon  Cambic subhorizon  Drumlin: thick deposits of dense glacial till formed into smoothed elongated hills  Till similar to underlying bedrock, derived from schist and granite  Prior land use likely crops Pit 2: Top Edge of Drumlin  Infiltration Rate: Moderate  Hydraulic Conductivity: Mod  Available Water: Low  Seasonal HWT: 50 - <100 cm  Position: Upland  Parent Material: Glacial  Slope: 2-6%  Surface runoff: Medium  Erosion potential: Medium  Basement: Moderate limitations  Septic: Severe limitations  Roads: Slight limitations

Questions?