An instrument that enables you to focus on research questions.

Because soil CO2 flux is a significant component of the carbon cycle, it is an important variable in studies of global climate change.

carbon cycle

Closed systems, such as the LI-8100A, deploy a chamber on the soil surface for a short period of time. The system circulates air from a chamber to a gas analyzer, and then back to the chamber. Flux is calculated from the rate that the CO2 concentration increases inside the chamber.

closed system diagram

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