Patterns and controlling factors of soil carbon sequestration in nitrogen-limited and -rich forests in China-a meta-analysis.

ABSTRACT: Soil organic carbon (SOC) management has the potential to contribute to climate change mitigation by reducing atmospheric carbon dioxide (CO₂). Understanding the changes in forest nitrogen (N) deposition rates has important implications for C sequestration. We explored the effects of N enrichment on soil carbon sequestration in nitrogen-limited and nitrogen-rich Chinese forests and their controlling factors. Our findings reveal that N inputs enhanced net soil C sequestration by 5.52-18.46 kg C kg^-1 N, with greater impacts in temperate forests (8.37-13.68 kg C kg^-1 N), the use of NH₄NO₃ fertilizer (7.78 kg Ckg^-1 N) at low N levels (<30 kg Ckg^-1 N; 9.14 kg Ckg^-1 N), and in a short period (<3 years; 12.95

SUBMITTER: Ngaba MJY 

PROVIDER: S-EPMC9864202 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature