PoolDilutionR: an R package for easy optimization of isotope pool dilution calculations

Abstract

1. Isotopic pool dilution is a powerful approach to quantify gross biogeochemical transformation rates, but remains seldom used despite its potential.
2. To facilitate broader implementation of pool dilution methods, we present a user- friendly R package that optimizes gross production and consumption rates (and optionally fractionation constants as well) based on standard pool dilution time series data.
3. This package features extensive documentation and example analyses, and is eas- ily integrated into analytical pipelines.
4. With this open-source tool, the biogeochemistry community will be able to read- ily apply isotope pool dilution to a wide range of processes.