Device and method for dynamic and continuous large sample measurement of soil respiration rate and isotope composition
A soil respiration and isotope technology, used in measuring devices, chemical analysis by titration, instruments, etc., can solve the problems of affecting the progress of the experiment, difficulty, and large measurement errors, so as to ensure the gas residence time, improve the detection efficiency, The effect of improving accuracy and representation
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Embodiment 1
[0035] Such as figure 1 As shown, the device for measuring soil respiration rate in a dynamic and continuous large sample includes an air pump 1, a soda lime column 2, an air filter 3, a flow regulating master valve 4, a thermostat 5, a buffer bottle 6, a soil culture tube 7, CO 2 Detector 8 and flowmeter 9; Described air pump 1, soda lime column 2, air filter 3 and flow regulating main valve 4 are connected successively by pipeline, and the bottle mouth of described buffer bottle 6 is plugged with bottle stopper and passes metal conduit 10 is connected with flow regulating master valve 4, and described soil cultivation pipe 7 is the cylindrical cultivation pipe of 4 vertically arranged two ends openings, and the upper end of described soil cultivation pipe 7 is plugged with dense rubber plug 11 and passes shunt pipe 12 and The buffer bottle 6 is connected, and the flow regulating sub-valve 13 is arranged on the said shunt pipe 12, and the lower end of the soil culture pipe 7 ...
Embodiment 2
[0042] Embodiment 2 is the same as embodiment 1 except that the soil weight in the soil culture tube is 200g.
Embodiment 3
[0044] Embodiment 3 is the same as Embodiment 1 except that the soil weight in the soil culture tube is 300g.
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