Dissecting the contributions of organic nitrogen aerosols to global atmospheric nitrogen deposition and implications for ecosystems.

ABSTRACT: Atmospheric deposition of particulate organic nitrogen (ON_p) is a significant process in the global nitrogen cycle and may be pivotally important for N-limited ecosystems. However, past models largely overlooked the spatial and chemical inhomogeneity of atmospheric ON_p and were thus deficient in assessing global ON_p impacts. We constructed a comprehensive global model of atmospheric gaseous and particulate organic nitrogen (ON), including the latest knowledge on emissions and secondary formations. Using this model, we simulated global atmospheric ON_p abundances consistent with observations. Our estimated global atmospheric ON deposition was 26 Tg N yr^-1, predominantly in the form of ON_p (23 Tg N yr^-1) and mostly f

SUBMITTER: Li Y 

PROVIDER: S-EPMC10634623 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature