Substantial nitrogen abatement accompanying decarbonization suppresses terrestrial carbon sinks in China.

ABSTRACT: China faces challenges in reaching its carbon neutrality goal by the year 2060 to meet the Paris Agreement and improving air quality simultaneously. Dramatic nitrogen emission reductions will be brought by this ambitious target, yet their impact on the natural ecosystem is not clear. Here, by combining two atmospheric chemistry models and two process-based terrestrial ecosystem models constrained using nationwide measurements, we show that atmospheric nitrogen deposition in China's terrestrial land will decrease by 44-57% following two emission control scenarios including one aiming at carbon neutrality. They consequently result in a pronounced shrinkage in terrestrial net ecosystem production, by 11-20% depending on models and emission scenarios. Our results indicate that the nitrogen emi

SUBMITTER: Shang F 

PROVIDER: S-EPMC11375097 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature