Articles | Volume 17, issue 2
https://doi.org/10.5194/acp-17-1329-2017
https://doi.org/10.5194/acp-17-1329-2017
Research article
 | 
30 Jan 2017
Research article |  | 30 Jan 2017

Aerosol optical depth thresholds as a tool to assess diffuse radiation fertilization of the land carbon uptake in China

Xu Yue and Nadine Unger

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We study aerosol effects on net primary productivity (NPP) in China through perturbations in diffuse and direct radiation. Regional NPP responses are diverse, depending on local aerosol optical depth (AOD) and cloud amount. Two AOD threshold maps are derived to determine the potential for aerosol diffuse fertilization effects. The net impact of aerosol pollution is limited in China due to dense cloud cover, as well as the offset between regional fertilization and inhibition on NPP.
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