Use of ~14C and ~13C natural abundances for evaluating riverine, estuarine, and coastal DOC and POC sources and cycling: a review and synthesis

摘要

Though not tyopically regarded as "biomarkers" in the traditional sense of the word, the radioactive and stable isotopes of carbon (~14C and ~13C, respectively) can serve as powerful tools for identifying sources and estimating turnover times of organic matter in aquatic systems.