Dual indicators link geochemistry to microbiota in blue carbon soils

In blue carbon ecosystems, biomarkers and indicators have been developed to assess soil biogeochemical processes history. this study, we investigate soils determine if geochemical characteristics can predict microbial characteristics, secondly these two reveal novel information about formation alteration. First, phospholipid fatty acids (PLFAs) identified functional groups abundances. Microbes varied strongly among the three ecosystems – seagrass, mangrove saltmarsh a lesser extent with age/depth. Then, x-ray fluorescence using core scanner (ITRAX) was used identify traits of soil. Lastly, statistical procedures were carried out test ability ITRAX-derived explain variation in PLFA composition. The for organic matter (OM) source turnover explained most variability PLFAs, followed by redox grain size. For both associated relatively higher OM availability reactivity abundance. High samples also supported range groups, including fungi co-existence prokaryotic aerobic anaerobic metabolisms. contrast, increased depths representing older ages showed decreases shifts processing through reduced active We suggest that data as an indicator conjunction other be multiple aspects (biology, provenance, physicochemistry), while possessing opportunity future development rapid field technique.