- #1
mroldboy
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Homework Statement
I am doing an experiment to find the difference in photosynthesis between different areas of grass.
I have and am taking more measurements. But essentially I need to convert the data I have into a flux per area over time.
the data logger records the data of CO2 concentration in (μmolCO2 (mol air)-1). I had it set to do so every second and recorded data fro 4-5 minutes.
I have the slope of the trendline, but I am unsure what that slope is.
Is the slope (μmolCO2 (mol air)-1) per second since its rise/run?
Homework Equations
equations of the data I have
closed chamber: y = 2.3778x + 588.26
clear chamber: y = -0.3184x + 399.19
The Attempt at a Solution
basically I want to find how much CO2 was used. so if I have X amount of CO2 being emitted from the ground that is my background noise. I did that with a closed chamber so no light got in and therefor no photosynthesis occurred. Then measured the same grass with a clear chamber and got a decrease. This decrease should be more since there was still background noise. So the grass was using at least as much CO2 as was emitted from the ground plus some more.
I can't actually do the calculations since I am missing an important piece of data in the volume of the chambers. which were different sizes as well.
I want my flux in (mgC)(m^-2 of ground hr^–1)
Can anyone give me a basic walkthrough of how to do this?