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The Effects of Time, Temperature,
and Treatment on Soil Respiration
Chase Macpherson
Smith College
Mentors: Alex Young, Alex Rice, Ruth Yanai, and Tim
Fahey
Goal:
To determine presence or absence of treatment
effect vs temperature or year effects
p=0.30
Year 2011 2012 2013 2014 2015 2016 2017 2018
# of
Stands
13 13 13 13 3 13 13 11
Avg #
of
Visits
4 5 6 4 3 5 2 1
*One point is one stand, which has 4 plots containing 7
collars each
Stand C1 C2 C3 C4 C5 C6 C7 C8 C9 HBM HBO JBM JBO
Total
# of
visits
52 52 21 29 21 31 31 24 31 31 31 27 27
One point = average flux of
one stand

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HB 2018- Look closely (with a LiCor)

  • 1. The Effects of Time, Temperature, and Treatment on Soil Respiration Chase Macpherson Smith College Mentors: Alex Young, Alex Rice, Ruth Yanai, and Tim Fahey
  • 2. Goal: To determine presence or absence of treatment effect vs temperature or year effects
  • 4. Year 2011 2012 2013 2014 2015 2016 2017 2018 # of Stands 13 13 13 13 3 13 13 11 Avg # of Visits 4 5 6 4 3 5 2 1 *One point is one stand, which has 4 plots containing 7 collars each Stand C1 C2 C3 C4 C5 C6 C7 C8 C9 HBM HBO JBM JBO Total # of visits 52 52 21 29 21 31 31 24 31 31 31 27 27
  • 5. One point = average flux of one stand

Editor's Notes

  1. *Changed the white text slightly
  2. Next steps: Incorporating distribution into mixed effect models and determining most parsimonious combination of variables Calculating Q10s for each treatment to confirm presence of treatment effect in temperature response