Soil gas-flux measurement system

A soil gas-flux monitor system comprising:

• at least one chamber having:
• a housing with a lower surface for supporting the housing on a soil surface, the lower surface having a first opening positioned to receive gases from the soil surface into a volume of the housing;
• a motorized door attached to a second opening in the housing to move between a closed position covering the second opening and an open position revealing the second opening to allow a free flow of outside air within the volume of the housing;
• an electronic carbon dioxide sensor retained at an interior of the housing to measure carbon dioxide in the volume of the housing;
• an electronic temperature sensor retained at an interior of the housing to measure temperature in the volume of the housing;
• a chamber-dedicated electronic processor communicating with the electronic carbon dioxide sensor and electronic temperature sensor and operating to periodically close the motorized door and to make measurements of carbon dioxide and temperature in the volume of the housing when closed using the electronic carbon dioxide sensor and electronic temperature sensor;
• a chamber-dedicated wireless transmitter receiving the measurements of carbon dioxide and temperature and transmitting those measurements;
• a chamber-dedicated battery providing electrical power to each of the electronic carbon dioxide sensor, electronic temperature sensor, electronic processor, and wireless transmitter.