ECHO - Soil Gas Flux - Brochure

A new method of measuring soil respiration. The method of measuring soil respiration where a chamber of known volume is placed by the robot arm on the soil and the rate of increase in CO2 within the chamber is monitored. With this system, the air is continuously sampled in a closed circuit and the soil respiration rate is calculated, displayed and recorded by the instrument. The air within the chamber is carefully mixed to ensure representative sampling without generating pressure differences which would affect the evolution of CO2 from the soil surface.