soil flux system Articles
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Soil CO2 Flux Measurements: Comparisons Between the LI-COR LI-6400 and LI-8100
Introduction The basic design features of LI-COR soil CO2 flux chambers were first published by Norman et. al., (1992), and the various factors known to influence the measurement of ground CO2 flux were summarized in LI-COR Application Note #124 and Welles, et. al., (2001). One of these factors is the concentration of CO2 in the chamber head space relative to the ambient atmospheric CO2 ...
By LI-COR
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Soil CO2 Flux Measurements -- Atmospheric CO2 Profile Measurements Using the LI-8100/8150 System
The LI-8100 Automated Soil CO2 Flux System has been designed to help answer the spatial and/or temporal variability questions that arise when performing soil CO2 flux measurements. When using the LI-8150 Multiplexer with the LI-8100 Analyzer Control Unit, atmospheric CO2 profile measurements can be performed in addition to soil CO2 flux measurements, with minimal added cost. This application note ...
By LI-COR
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Soil CO2 Flux Measurements -- Addressing Spatial Variability: Determining the Number of Readings Required
Soils can be highly variable in terms of CO2 flux values. Even at a seemingly uniform site, the soil CO2 flux might range from 2 μmol/m2/s at one location to over 4 mol/m2/s just a few meters away. To obtain reliable site mean flux values, it is important to determine how many readings might be required so that time and resources can be properly allocated before starting an investigation. In ...
By LI-COR
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