Soil bacterial β diversity as a key determinant of belowground productivity in warming alpine ecosystems

Climate warming has profound effects on terrestrial ecosystems, with biodiversity playing a crucial role in modulating ecosystem productivity. While substantial studies have examined how plant species richness (α-diversity) influences ANPP under warming conditions, the contributions of plant and soil microbial β-diversity to BNPP remain insufficiently understood. In this study, we conducted a six-year warming experiment in an alpine meadow to investigate the response patterns and drivers of BNPP, as well as the α- and β-diversity of plant and soil microbial communities.