Publications by authors named "Shuidi He"
The Pearl River Delta (PRD) region has been identified as a significant hotspot of wet ammonium deposition. However, the absence of long-term monitoring data in the area hinders the comprehension of the historical trends and changes in wet NH-N deposition in response to emissions, which interferes with the ability to make effective decisions. This study has analyzed the long-term trends of wet NH-N deposition flux and has quantified the effect of anthropogenic emissions and meteorological factors at a typical urban site and a typical forest site in the PRD region from 2009 to 2020.
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- The study investigates the transport pathways and source areas of inorganic nitrogen wet deposition in southern China over a seven-year period (2010-2017), focusing on two sites: Guangzhou urban and Dinghushan Natural Reserve.
- The average annual nitrogen fluxes at these sites were found to be higher than the national mean, with notable differences in the ratios of reduced to oxidized nitrogen.
- Seasonal variations showed that local emissions heavily influenced nitrogen deposition in the wet season, while contributions from outside the region increased significantly during the dry season, highlighting the need for targeted emission control policies.