Soil Analysis Lab Report

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Introduction: Soil samples where collected to test at Green River College, King County Washington, Sec 16 T21N R05E, W.M. in the gator pond retention area. Testing was done every half chain, for a distance of 528 feet to the north/south, 16 lines. Plots to the east/west where done until the water no longer flowed into the water shed. Data collected included, amounts of sand silt and clay, the amount of gravel, and dominate and co-dominate species in a 4 foot radius and the density of each plot. Each line of plots and testing were test by different individuals and then data was put onto an excel spread sheet to compare the soil types.
Materials: Shovel, glass cylinder, glass beaker, hammer, 230ML metal cylinder, plastic bags, water, filter screen, sharpie, flagging,,
…show more content…
Tape measure.
Methods: After being assigned a line of plots , locate the first plot by using a map and a compass . Hang a piece of flagging with your name, the line number and the plot number at your first plot. Use a four foot radius and record the dominate and co-dominate species in the area. Record which direction water will flow if it was raining. Use a densitometer to test the density of the soil. Next, dig a 18 inch hole to collect the soil sample. Once the hole is dug, put the metal cylinder into the hole and pound it in with a hammer. If there are more than one horizon collect two soil samples from the same hole, one in each horizon. Put the soil collected into a plastic bag and use a sharpie to label it. Fill the hole in. the next plot in the line is a 1/2chain due east. Use a compass to shoot the bearing and a tape measure to measure the 33 feet. At the second plot, repeat the process of the first plot and record the data. Repeat the steps until you reach a plot where

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