Threshold responses of soil microbial communities and functions to 18O-H2O enrichment - Fangying Qu; Lingrui Qu; Yue Liu; Mike Manefield; Bruce A. Hungate; Ember M. Morrissey; Jian Wang; Yi Yang; Juan Piñeiro; Edith Bai; Chao Wang (Soil Biology and Biochemistry, 2026)