Dear friends/Sir/Madam,
As we know plant respires during night time, but is ththere any instrument/device/procedures/methodology to measure how much CO2 is being emitted by a plant/tree in field condition over a specific period of time?
Please let me know!
FTIR spectrometer. *Plenty of published examples for crop use and monitoring.
No, I think he is referring to the fact that plants do not use photosynthesis at night and release most of their CO2.
Dear William, I wish to measure net amount of CO2 released by plant/tree.
A gas chromatographer equipped with hydrogen flame ionisation detector (FID) and electron capture detector (ECD) can measure carbon dioxide in an air sample. The system is suitable for monitoring greenhouse gas fluxes in a short plant field since it is easy to use, and constant and reliable in collecting data.
www.fao.org/docrep/015/i2560e/i2560e04.pdf
www.worldagroforestry.org/downloads/Publications/PDFS/MN16217.pdf
Two methods for determining carbon dioxide emissions from stationary sources are considered here: predicting emissions based on fuel consumption measurements-predicted emissions measurements, and direct measurement of emissions quantities in the flue gas-direct emissions measurements. Uncertainty for the predicted emissions measurement was estimated at less than 1%. Uncertainty estimates for the direct emissions measurement of carbon dioxide were on the order of ±4%. The relative difference between the direct emissions measurements and the predicted emissions measurements was within the range of the measurement uncertainty, therefore demonstrating good agreement.
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