334 8 1171 2 6561 document 1171 GBC - haze and plankton data.xlsx application/vnd.openxmlformats-officedocument.spreadsheetml.sheet 367c246c3c5f27aaa34ff10c5fd2b765 MD5 100636 2019-04-30 07:18:35 http://edata.bham.ac.uk/334/1/GBC%20-%20haze%20and%20plankton%20data.xlsx 334 1 1 application/vnd.openxmlformats-officedocument.spreadsheetml.sheet spreadsheet public cc_by_4

GBC - haze and plankton data.xlsx

data archive 116 disk0/00/00/03/34 2019-04-30 08:35:38 2019-04-30 08:37:21 2019-04-30 08:35:38 data_collection show Shi Zongbo Z.Shi@bham.ac.uk 0000-0002-7157-543X DataCollector Gao Huiwang hwgao@ouc.edu.cn DataCollector Chao Zhang llyz_c3911@163.com Ocean University of China: Professor Huiwang Gao and Dr. Chao Zhang 10col_life aerosol; phytoplankton; toxicity; fertilisation Haze particles as a key air pollutant contain high level of toxins, which were hypothesized to inhibit phytoplankton growth when deposited to the ocean, and thus indirectly affect the climate. However, field observations have yet to provide conclusive evidence to confirm this hypothesis. On-board microcosm experiments in the Northwest Pacific ocean (NWPO) show that haze particles collected at the East Asia continent had an inhibition impact on phytoplankton growth only when at very high particle loading (2 mg L-1). In contrast, haze particles at low and medium loadings (0.03-0.6 mg L-1) stimulated phytoplankton growth and shifted phytoplankton size structure towards larger cells, primarily due to the supply of inorganic nitrogen nutrients from the particles. Model simulations showed that haze particle loading in NWPO surface seawater was usually more than an order of magnitude lower than 2 mg L-1. This indicates that haze particles are unlikely to cause harm but to stimulate phytoplankton growth in the nitrogen-limited NWPO. Ocean biogeochemical modelling further show that deposited nitrogen significantly enhanced surface ocean chlorophyll a concentration in the winter and spring of 2014. Overall, these results demonstrate that haze particles stimulate rather than inhibit primary production in the NWPO. 2019-04-30 published University of Birmingham 10.25500/edata.bham.00000334 Dataset research-data@contacts.bham.ac.uk School of Geography, Earth and Environmental Sciences nerc other rs NSFC Ministry of Science and Technology, China NE/K000845/1 - NERC National Natural Science Foundation of China - 41876125 Major State Basic Research Development Program of China - 2014CB953701 NSFC-Royal Society travel grant - 41511130068 en yes yes yes TRUE staff Shi Zongbo Z.Shi@bham.ac.uk pub Western Pacific Ocean en 2014 2016