Deciphering the intricate control of minerals on deep soil carbon stability and persistence in Alaskan permafrost

Data S1. Properties of permafrost soils utilized within this study.Data S2. Synthesizing data on the proportion of total necromass C in SOC in global ecosystems.Data S3. Data of mineral-OH and C functional groups present in permafrost soils, as determined by FTIR and depicted in Fig. 5c.Data S4. Data of the color reaction curves resulting from 3,3', 5,5'- tetramethylbenzidine (TMB) catalyzed by natural enzyme (HRP, horseradish peroxidase), soils, and soil solution, as depicted in Supplementary Figure 8.