Plant diversity is key for microbial necromass carbon accrual in alpine grasslands

This study spanned an elevation gradient from 3,500 m to 5,016 m and extended approximately 3,000 km across grasslands of the Tibetan Plateau. The dataset includes measurements of plant properties, plant carbon (C) input, soil properties, soil amino sugars, microbial properties, soil enzyme activities, and mineral protection. All data were log-transformed and are ready for direct use in statistical analyses and figure generation.