Ten-year 15N labeling reveals the nitrogen retention threshold for maximizing carbon sequestration in a temperate forest

Proceedings of the National Academy of Sciences, Volume 123, Number 5, February 2026.
ImportanceAlthough short-term forest carbon (C) sequestration is strongly influenced by deposited nitrogen (N) forms, the convergence of their long-term fates and their ultimate impact on nitrogen use efficiency (NUE) and C storage in ecosystems remains critical…