2026-10-13T16:37:54Z https://www.scidb.cn/oai

10.57760/sciencedb.0113l 2026-09-07T10:08:24Z

2026-09-07 Nonlinear response of soil microbial necromass nitrogen to nitrogen addition gradient in an alpine grassland doi:10.57760/sciencedb.0113l en We leveraged a decade-long field experiment in an alpine meadow on the Qinghai-Tibetan Plateau (QTP), applying six N addition levels (0, 2, 4, 8, 8，16, 32 g N m−2 yr−1) to investigate the response of microbial necromass N and its key drivers. The data include microbial necromass N, aboveground biomass, root biomass, pH, soil inorganic and organic nitrogen（SIN，DON）, amorphous iron and aluminum oxides（Feo+Alo）, microbial biomass nitrogen（MBN）, N-acetyl-β-D-glucosaminidase（NAG）, and leucine aminopeptidase（LAP）. microbial necromass nitrogen; nitrogen addition gradient; nonlinear response; mineral protection Wang Quancheng Wang Jinsong RESTRICTED dataset Science Data Bank