δ¹³C values of organic carbon in cropland and forest soils in Japan

Effects of ecological succession on surface mineral horizons in Japanese volcanic ash soil

“…the δ 13 C values of the carbon derived from C4-plants and C3-plants are an average of −13‰ and −27‰, respectively (Yoneyama et al, 2001). Microbial degradation processes of plant materials are not associated with appreciable changes in δ 13 C values (within 2‰, Yoneyama et al, 2001).…”

Factors contributing to greater soil organic carbon accumulation after afforestation in a Japanese coniferous plantation as determined by stable and radioactive isotopes

“…A mass-balance equation was used to estimate the relative contribution of the C 3 -and C 4 -plant-derived SOC to the total SOC (e.g., Balesdent et al, 1987;Yoneyama et al, 2001):…”

Characterization of allophanic Andisols by solid-state 13C, 27Al, and 29Si NMR and by C stable isotopic ratio, δ13C

“…In our study, −13 and − 27‰ were employed for the δC 4 and δC 3 values, respectively (Yoneyama et al, 2001;Hiradate et al, 2004).…”