fluxible - Ecosystem Gas Fluxes Calculations for Closed Loop Chamber Setup
Toolbox to process raw data from closed loop flux chamber
(or tent) setups into ecosystem gas fluxes usable for analysis.
It goes from a data frame of gas concentration over time (which
can contain several measurements) and a meta data file
indicating which measurement was done when, to a data frame of
ecosystem gas fluxes including quality diagnostics. Organized
with one function per step, maximizing user flexibility and
backwards compatibility. Different models to estimate the
fluxes from the raw data are available: exponential as
described in Zhao et al (2018)
<doi:10.1016/j.agrformet.2018.08.022>, exponential as described
in Hutchinson and Mosier (1981)
<doi:10.2136/sssaj1981.03615995004500020017x>, quadratic, and
linear. Other functions include quality assessment, plotting
for visual check, calculation of fluxes based on the setup
specific parameters (chamber size, plot area, ...), gross
primary production and transpiration rate calculation, and
light response curves.
