Soil Pit

Zoomed out map of my soil pit

Zoomed in map of my soil pit

MAP OF MY SOIL PIT

I chose to dig my soil pit in Centennial Woods about half a mile in from the entrance on Carrigan Drive. My soil pit was at the top of a decently steep slope with a stream at the bottom. My soil pit was surrounded by coniferous trees, but I was able to find a small clear area.

http://www.uvm.edu/~uvmsc/Centennial%20Woods/centennial_woods_trails.jpg

PHOTOGRAPHS OF MY SOIL PIT

MY SOIL PIT LOG

A Horizon Surface Soil: Accumulataion of organic matter and soil life. Due to weathering, some iron oxides and clay minerals are formed/accumulated.

B Horizon Subsoil: Substances move down from the top soil and accumulate in this horizon. Iron oxides and clay minerals accumulate in this horizon due to weathering.

C Horizon Substratum: Poorly weathered layer. Accumulates more soluble compounds.

History of my Soil

Centennial Woods is one of the most popular natural areas used by the UVM campus and community. Centennial Woods has a long history which includes different land uses; the most predominate was agricultural purposes. Once the farms began to be abandoned in the late 1800's is when the oldest parts of the forest began to grow. We know from the history of Centennial Woods that the soil has been disturbed by humans. From looking at the soil pit I dug, I can also come to the conclusion that the area has been disturbed by humans. There is no clear straight line separating the A horizon and B horizon. This tells us that those horizons have been disturbed, becuase naturally there would be a clear separation of these layers.

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