生态转换系统中土壤有机质变化的稳定碳同位素示踪研究进展

摘要

Due to different photosynthetic process,there is obvious difference in δ 13 C values between C 3 plants and C 4 plants.It is a useful method to trace with stable carbon isotopes in soil organic matter when studying turning ecosystems,where C 3 plants (or C 4 plants)are planted instead of C 4 plants (or C 3 plants).This paper intends to review and synthesize the recent advances in the research of this subject.