Interannual variation of nutrients along a transect across the Kuroshio and shelf area in the East China Sea over 40 years

胡莹英; 郭新宇; 赵亮

doi:10.1007/s00343-017-6234-y

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Interannual variation of nutrients along a transect across the Kuroshio and shelf area in the East China Sea over 40 years

Updated：2023-04-13

- Interannual variation of nutrients along a transect across the Kuroshio and shelf area in the East China Sea over 40 years
- Interannual variation of nutrients along a transect across the Kuroshio and shelf area in the East China Sea over 40 years
- 海洋湖沼学报（英文） 2018年36卷第1期页码：62-76
- Affiliations：
  
  1.Center for Marine Environmental Studies, Ehime University, Matsuyama 7908577, Japan
  2.Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China
  3.College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
  4.College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin 300457, China
- Author bio：
  
  guo.xinyu.mz@ehime-u.ac.jp
- Funds：
  
  Supported by the National Basic Research Program of China (973 Program) (No. 2012CB956004), the National Natural Science Foundation of China (NSFC) (No. 41576010), the JSPS KAKENHI (Nos. JP26241009, JP26287116, JP15H05821), the Fundamental Research Funds for Central Universities from the Ministry of Education of China (No. 201512004) to X. Guo, the National Key Research and Development Program of China (No. 2016YFA0601301), the Strategic Priority Research Program of Chinese Academy of Sciences (No. XDA11020305), the National Natural Science Foundation of China (NSFC) (No. 41276016), and the Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) through a project on Joint Usage/Research Center, Leading Academia in Marine and Environment Pollution Research (LaMer) to L. Zhao
- DOI：10.1007/s00343-017-6234-y
  中图分类号：
- 收稿：2016-08-31，
  
  录用：2016-10-15，
  
  网络首发：2016-11-22，
  
  纸质出版：2018-01
- Accepted：
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胡莹英, 郭新宇, 赵亮. Interannual variation of nutrients along a transect across the Kuroshio and shelf area in the East China Sea over 40 years[J]. 海洋湖沼学报（英文）, 2018,36(1):62-76.

Yingying HU, Xinyu GUO, Liang ZHAO. Interannual variation of nutrients along a transect across the Kuroshio and shelf area in the East China Sea over 40 years[J]. Chinese Journal of Oceanology and Limnology, 2018, 36(1): 62-76.
胡莹英, 郭新宇, 赵亮. Interannual variation of nutrients along a transect across the Kuroshio and shelf area in the East China Sea over 40 years[J]. 海洋湖沼学报（英文）, 2018,36(1):62-76. DOI： 10.1007/s00343-017-6234-y.

Yingying HU, Xinyu GUO, Liang ZHAO. Interannual variation of nutrients along a transect across the Kuroshio and shelf area in the East China Sea over 40 years[J]. Chinese Journal of Oceanology and Limnology, 2018, 36(1): 62-76. DOI： 10.1007/s00343-017-6234-y.

摘要

Abstract

Long-term datasets of water temperature

salinity

dissolved oxygen

phosphate and nitrate from 1973 to 2013 were used to study interannual variations of these parameters along a transect (section PN) across the Kuroshio and shelf area in the East China Sea. Water temperature and salinity at depths of 0-200 m showed a low-high-low-high pattern over the 40-year period. Water temperature and salinity at 500 m were relatively high from 1985 to 1990 and decreased continuously thereafter. Salinity at 800 m was lowest around 1993 and increased thereafter. Nutrients were highest between 1980 and 1985. After 1985

nutrients at 500 m were increasing. The range of variation in nutrients was large before 1985 and the magnitude increased with greater depths. Apparent oxygen utilization at 500 m depth was decreasing before 1990 and started to increase after 1992. Significant changes after 1990 at 500 m depth may be due to the upward trend of the upper boundary of Kuroshio intermediate water. Interannual variation of water temperature

salinity

dissolved oxygen

phosphate and nitrate along section PN has a significant correlation with the Pacific Decadal Oscillation index.

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references

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