Porosity of Lake Munsons Soil

1
Porosity of Lake Munsons Soil

• Group Members Allene Ojah, Kayan Clarke, Benin
  Saffo, Dee Daramola and Danielle Smith

2
The porosity of soil at Lake Munson moving away
from the shoreline.

• Research Question Will the Porosity (percent) of
  the soil decrease as we move further away from
  Lake Munson?
• Hypothesis We predict that the Porosity of the
  soil will decrease as we take samples further
  away from Lake Munson because porosity measures
  the amount pore space of the soil and it makes
  sense that as we get further from the lake the
  soil will become sandier and less porous.

3
Procedure

• 1. Performed Bulk Density Protocol according to
  the Globe Program.
• 2. At Lake Munson we made our intervals two
  meters apart, at each interval we collected three
  samples there were three intervals.
• 3. We used 275mL plastic containers to collect
  the samples.
• 4. Performed Soil Particle Density Protocol
  according to the Globe Program.
• 5. This procedure was carried out in a lab.
• 6. We made our calculations, and completed the
  data sheet.

4
What is porosity?

• Bulk Density A measure of how dense and tightly
  packed a sample of soil is.
• Soil Particle Density Measures the mass of a
  soil sample in a given volume of particles
  focuses on just the soil particles and not the
  total volume that the soil particles and pore
  spaces occupy in the soil.

5
Data and Observations

• Debris in the soil made the lab tests more
  difficult.
• The soil closer toward the lake was much darker
  and moister.
• After the 24 hour waiting period, some soil
  samples were nearly dry while others had to be
  dried in the drying oven.

6
Equations

• Porosity 1- (Bulk Density)
• (Particle Density) X 100
• Bulk Density mass of dry soil / total volume of
  soil and air (g/cm3)
• Particle Density mass of dry soil / volume of
  soil particles only (air removed) (g/cm3)

7
(No Transcript)
8
Results
9
Conclusion

• We did find that soil porosity decreased with
  increasing distance from Lake Munsons shore.