Fig. 4From: Elevated atmospheric CO2 impact on carbon and nitrogen transformations and microbial community in replicated wetlanda–c Mean concentration (mg/L) of water TOC, TC, and IC. The average percent showed the CO2 effect. The length of each value was mean (mean of three replicate) indicated in elevated CO2 (black) and ambient CO2 (white) and their standard error (S.E.) (n = 8 times observation with duplicates). Statistical significance, α = 0.05Back to article page