A Simple Method for Measuring Co2 in a Continuous Air-flow System: Modifications to the Substrate-induced Respiration Technique
نویسندگان
چکیده
A simple, inexpensive method for measurement of respiration (CO, evolution) under a continuous air-flow was calibrated against an i.r. gas analyzer. Regression equations were developed to apply the method to general soil respiration measurement in the laboratory. The substrate-induced respiration technique was modified. By using 120% PWHC as a standard soil water condition during incubation, initial substrate-induced maximal respiration was measured in an optimal fashion. The problem of high experimental errors associated with soils with high pH values (PH > 6.5) can be avoided by using the simple method of CO, measurement with this continuous air-flow system.
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