A long-term soil gas flux system confers several benefits by taking continuous measurements at many locations around your site over an extended period. Long-term, continuous, and multiplexed datasets allow you to:
Measure the vertical profile of gases for more complete flux results.Learn more
At the core of a LI-COR long-term soil gas flux system is the LI-8250 Multiplexer. The LI-8250 Multiplexer acts as the single access point for the analyzers and chambers of your soil gas flux research site.
Powered by the LI-8250 Multiplexer, each Extension Manifold allows multiple chambers to share a single LI-8250 port—extending the maximum number of chambers from 8 to 36.
Designed for flexibility, the LI-8250 Multiplexer lets you tailor your long-term system to the gas species and analyzer of your choice. LI-COR offers the LI-7810 CH4/CO2/H2O Trace Gas Analyzer, the LI-7820 N2O/H2O Trace Gas Analyzer, and the LI-870 CO2/H2O Analyzer—but third-party analyzers can also be used.
Use any combination of up to 36 opaque, clear, or custom built chambers, and incorporate ancillary data into your fluxes from various sensors.
Embedded software makes the LI-8250 Multiplexer your single access point for your long-term soil gas flux research site. In the field, connect directly to the LI-8250 via the built-in Wi-Fi server and the browser of your mobile device or laptop. Or connect the LI-8250 to an added cellular modem to reach your site remotely and only visit when necessary.
Whether connected directly or remotely, you can view and manage your flux data, diagnostics, system configuration, and distribute daily summary files. If your long-term system is connected to a LI-COR gas analyzer, check the status of your analyzer and view on-site flux data live.
The scientific community has entrusted their soil gas flux research to LI-COR products for more than 20 years. The LI-8250 was designed to withstand the rigors of field research with weather, splash, and dust resistant components that allow it to be left in the field for entire seasons. A complete system made up of LI-COR products ensures seamless integration for an ideal soil gas flux research experience.
See more about what makes the LI-8250 Multiplexer differentVisit the LI-8250 Page
Chambers can make all the difference in obtaining reliable data. LI-COR long-term chambers are intended for extended field deployment, accept a wide range of SDI-12 sensors, and are uniquely designed to minimize any artificial impact the chamber has on soil environment conditions.
The 8200-104 Opaque Chamber uses a reflective white enamel chamber that rotates to and from the soil collar for automated measurements. This chamber is designed to be left in the field for long periods of time and can connect SDI-12 sensors for additional measurements at the chamber.
Specifically designed for net carbon exchange (NCE) research, the 8200-104C Clear Chamber allows plants within the collar to receive sunlight and continue photosynthesis. This chamber can be left in the field for extended periods and connects with SDI-12 sensors.
If you are mechanically inclined and have a chamber specifically designed for your application, the LI-8250 Multiplexer will still allow you to use that chamber and integrate it into a LI-COR soil gas flux system.
Choose your gas analyzer based on your gases of interest without worrying about compatibility issues. The LI-8250 Multiplexer integrates LI-COR gas analyzers and accepts third-party analyzers. When using a LI-COR gas analyzer, live fluxes can be viewed on a mobile device or laptop, and flux data is stored in a single, comprehensive file. Additionally, LI-COR soil gas flux systems easily combine data from multiple analyzers to provide on-site fluxes and can communicate data files remotely.
The LI-7810 CH4/CO2/H2O Trace Gas Analyzer provides precise and stable methane measurements in a rugged and affordable water-resistant case. The LI-7810 combines patented technologies with Optical Feedback-Cavity Enhanced Absorption Spectroscopy (OF-CEAS) in one durable instrument for long-term field deployment.
The LI-7820 N2O/H2O Trace Gas Analyzer is a low power, laser-based analyzer for long-term measurements. With the same ease of use as other LI-COR trace gas analyzers, this highly precise N2O analyzer pairs easily with the LI-870 for added CO2 measurements or the LI-7810 for added CO2 and CH4 measurements.
Rapid and precise soil CO2 flux measurements. Designed for durability, a weatherproof case with weather, dust, and splash resistant components make the LI-870 suitable for long-term deployment in harsh conditions.
If you are looking for a laser-based solution for soil CO2 flux survey measurements, the LI-7815 CO2/H2O Trace Gas Analyzer is available. Ask us which solution is a good fit for your research.
Research based on your gas of interest. The LI-8250 Multiplexer integrates third-party analyzers to support fluxes of isotopologues and other gases. Third-party analyzer data is collected concurrently with chamber data and the two sets can be later merged with SoilFluxPro™ Software to calculate fluxes.
Soil Gas Flux Products