a decreasing trendP < 0.05
Therefore, this study measured CH 4 and 13 CH 4 on the 15th day, revealing a decreasing trend in the emissions of both CH 4 and 13 CH 4 with increasing heavy metal concentrations ( P < 0.05, SI Appendix , Fig.
Therefore, this study measured CH 4 and 13 CH 4 on the 15th day, revealing a decreasing trend in the emissions of both CH 4 and 13 CH 4 with increasing heavy metal concentrations ( P < 0.05, SI Appendix , Fig.
In soils under high heavy metal stress, the concentrations of Fe 2 O 3 and MnO, which are closely related to mineralization processes and microbial ecology, as well as heavy metal oxides associated with pollution (CuO, NiO, ZnO, As 2 O 3 , and PbO), all revealed an increasing trend compared to the clean group ( Dataset S2 ).