Influence of Arbuscular Mycorrhizal Fungi on Nitrogen Dynamics During <i>Cinnamomum camphora</i> Litter Decomposition.

ABSTRACT: Arbuscular mycorrhizal fungi (AMF) can preferentially absorb the released ammonium (NH₄⁺) over nitrate (NO₃^-) during litter decomposition. However, the impact of AMF's absorption of NH₄⁺ on litter nitrogen (N) decomposition is still unclear. In this study, we investigated the effects of AMF uptake for NH₄⁺ on litter N metabolic characteristics by enriching NH₄⁺ via AMF suppression and nitrification inhibition in a subtropical Cinnamomum camphora forest. The results showed that AMF suppression and nitrification inhibition significantly decelerated litter decomposition in the early stage due to the repression of NH₄⁺ in extracellular enzyme activity. In t

SUBMITTER: Gao Y 

PROVIDER: S-EPMC11768061 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature