DOI: 10.1002/2017JG004088
Scopus记录号: 2-s2.0-85044463548
论文题名: Promotion Effect of Asian Dust on Phytoplankton Growth and Potential Dissolved Organic Phosphorus Utilization in the South China Sea
作者: Chu Q. ; Liu Y. ; Shi J. ; Zhang C. ; Gong X. ; Yao X. ; Guo X. ; Gao H.
刊名: Journal of Geophysical Research: Biogeosciences
ISSN: 21698953
出版年: 2018
卷: 123, 期: 3 起始页码: 1101
结束页码: 1116
语种: 英语
英文关键词: Asian dust
; DOP utilization
; incubation experiments
; oligotrophic region
; South China Sea
; ultraoligotrophic region
Scopus关键词: chlorophyll a
; community response
; dissolved inorganic phosphorus
; dissolved organic phosphorus
; dust
; experiment
; growth
; nitrogen
; nutrient
; oligotrophic environment
; phytoplankton
; rainwater
; Luzon Strait
; Pacific Ocean
; South China Sea
; Chaetoceros
; Nitzschia
英文摘要: Dust deposition is an important nutrient source to the South China Sea (SCS), but few in situ experiments were conducted on phytoplankton response to the deposition. We conducted onboard incubation experiments at three stations near Luzon Strait in the SCS, with addition of multiple dissolved inorganic nutrients, Asian dust, and rainwater. From our results, nitrogen and phosphorus were both urgently needed for phytoplankton growth in the SCS, indicated by the evident Chl a response to the addition of nitrogen and phosphorus together. Almost no evident response was observed by adding phosphorus or iron alone to incubation waters, although a delayed response of Chl a in mass concentration was observed by adding nitrogen alone. The latter implied a possible utilization of dissolved organic phosphorus because of insufficient dissolved inorganic phosphorus in incubation waters. Under such nutrient condition, Asian dust showed an apparent promotion effect on phytoplankton growth by providing sufficient amounts of nitrogen but low phosphorus. Meanwhile, it was found that large sized (> 5 μm) phytoplankton community showed different responses to dust addition at different stations. At stations A3 and A6, Chaetoceros spp. became the dominant species during the bloom period, while at station WG2, Nitzschia spp. became dominant. In combination with different initial nutrients and Chl a levels at the three stations, the different phytoplankton community evolution implied the response difference to external inputs between oligotrophic (stations A3 and A6) and ultraoligotrophic (station WG2) conditions in the SCS. ©2018. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114350
Appears in Collections: 气候减缓与适应
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作者单位: Key Laboratory of Marine Environment and Ecology, Ocean University of China, Ministry of Education of China, Qingdao, China; Center for Marine Environmental Studies, Ehime University, Matsuyama, Japan; Now at College of Chemistry, Chemical & Environmental Engineering, Weifang University, Weifang, China; Laboratory for Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; School of Mathematics and Physics, Qingdao University of Science and Technology, Qingdao, China
Recommended Citation:
Chu Q.,Liu Y.,Shi J.,et al. Promotion Effect of Asian Dust on Phytoplankton Growth and Potential Dissolved Organic Phosphorus Utilization in the South China Sea[J]. Journal of Geophysical Research: Biogeosciences,2018-01-01,123(3)