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LI-8100 Automated Soil CO2 Flux System
Designed for global carbon cycle research.

  • Technique independent measurements
  • Multiple system configurations
  • A complete, dedicated field-study system
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Why the LI-8100?


Single Chamber Survey System (top left), Single Chamber Long-Term System (bottom left), Multiple Chamber Long-Term System (right)Modular by design, the LI-8100 System's flexibility allows researchers to build custom systems from a selection of available components.

  • Survey system with 10 or 20 cm chamber
  • Single chamber long-term system
  • Multiple chamber long-term system (up to 16)
  • Fully modular - start with a single chamber system, add Multiplexer and additional chambers later.

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Smithsonian exhibitLI-8100 Automated Soil CO2 Flux System Featured in Smithsonian Exhibit
The LI-8100 Automated Soil CO2 Flux System is featured in an interactive display as part of the Smithsonian’s Dig It! Exhibit.

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LI-8100 Analyzer Control Unit
LI-8150 Multiplexer
A dedicated field-study system that performs technique-independent measurements:

LI-8100 Analyzer Control Unit

  • CO2/H2O Infrared Gas Analyzer
  • Internal & removable data storage
  • Automated chambers
  • Powerful setup, monitoring, and post-processing software
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LI-8150 Multiplexer

  • Connect up to 16 long-term chambers
  • 30m (98.4 ft) diameter coverage
  • Choose from 8 or 16 port configurations
  • Easy connection to the LI-8100 Analyzer Control Unit
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Attention to Scientific Detail

  • Novel pressure vent - chamber pressure tracks ambient pressure
  • Double gasket chamber seals
  • Automation of chambers to prevent soil perturbation
  • Perforated long-term chamber baseplates minimize perturbations to soil environment
  • Choice of linear or exponential flux calculation
  • Flux rates calculated at ambient concentration
  • LI-COR's years of expertise in soil CO2 flux
Vent closeup
Closeup of pressure vent, designed for the survey and
long-term chambers.
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What's New

8100-204 ThetaProbeModel ML2x ThetaProbe Moisture Sensors Available
Model ML2x ThetaProbe moisture sensors are now available as an accessory for the LI-8100 System.
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QA/QC WebinarQA/QC of Large Datasets of Soil Surface CO2 Efflux Measurements
A webinar covering quality assurance and quality control of large soil CO2flux data sets.
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LI-8100 Lecture SeriesLecture Series for the LI-8100
A multimedia powerpoint presentation on the critical considerations for accurate measurement of soil CO2 flux.
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