Effect of Mosses and Long-Term N Addition on δ¹³C and δ¹⁸O Values of Respired CO₂ Under a Temperate Forest Floor.

ABSTRACT: Static chambers combined with isotopic (δ¹³C and δ¹⁸O) and flux (CO₂ and CH₄) measurements were applied, to explore the effects of mosses and long-term nitrogen (N) addition at two levels (22.5 and 45 kg N ha^-1 yr^-1) on δ¹³C and δ¹⁸O values of respired CO₂ across three autumn seasons under a temperate forest (northeastern China) and their relationships with CO₂ and CH₄ fluxes and with soil properties. Mosses generally depleted δ¹³C and enriched δ¹⁸O in respired CO₂, likely by altering soil microenvironments or/and substrate use. The effect of N addition on the δ¹³C and δ¹⁸O values of respired CO₂ varied wi

SUBMITTER: Xu X 

PROVIDER: S-EPMC12430311 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature