7440-44-0 Carbon Journal Article Soil Minerals microbial necromass Research Support, Non-U.S. Gov't biomarker approach carbon mineralization carbon sequestration climate zone incubation lignin phenol microbial residues mineral binding sites mineral-organic association nanozyme paddy and upland permafrost permafrost soils peroxidase radiocarbon reactive minerals soil carbon accrual synchrotron radiation temperature sensitivity μ‐FTIR