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  1. F300 宇宙地球環境研究所
  2. F300a 雑誌掲載論文
  3. 学術雑誌

Stable isotope ratios of carbon and nitrogen in suspended organic matter: Seasonal and spatial dynamics along the Changjiang (Yangtze River) transport pathway

http://hdl.handle.net/2237/25262
http://hdl.handle.net/2237/25262
005fa562-b2a0-498d-8ff7-e3a3be1f6fe4
名前 / ファイル ライセンス アクション
Gao_et_al-2014-Journal_of_Geophysical_Research_Biogeosciences.pdf Gao_et_al-2014-Journal_of_Geophysical_Research_Biogeosciences.pdf (7.4 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2016-12-19
タイトル
タイトル Stable isotope ratios of carbon and nitrogen in suspended organic matter: Seasonal and spatial dynamics along the Changjiang (Yangtze River) transport pathway
言語 en
著者 Lei, Gao

× Lei, Gao

WEKO 68334

en Lei, Gao

Search repository
Li, Daoji

× Li, Daoji

WEKO 68335

en Li, Daoji

Search repository
Ishizaka, Joji

× Ishizaka, Joji

WEKO 68336

en Ishizaka, Joji

Search repository
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利
言語 en
権利情報 © 2014 American Geophysical Union
抄録
内容記述 Seven cruises were conducted in the Changjiang (Yangtze River) Estuary and the adjacent western East China Sea (ECS) from 2010 to 2012 to study the seasonal variations of δ13C and δ15N in suspended organic matter. In addition, two cruises in the northeastern ECS in July 2011 and in Tsushima Strait in July 2012 were conducted to evaluate the distribution patterns of these isotopes over the entire Changjiang transport pathway. In summer, the surface δ13C was lowest in the Changjiang Channel, increasing from land to sea, reaching highest values in the central ECS, and then decreasing and remaining relatively constant. In winter, the surface δ13C in the western ECS showed lower values with less variation in general. At most stations, δ13C increased from the sea surface to the seabed, reflecting the degradation of sinking organic matter; however, these trends could be changed in the summer by surface phytoplankton accumulation. Combining data from all the Changjiang Estuary and western ECS cruises revealed that when the suspended particulate matter (SPM) was > 135 mg/L, the δ13C values were fairly constant (−24.5‰ to −20.5‰); when the SPM was < 135 mg/L, the δ13C values showed much greater variability (−28.4‰ to −16.6‰). The surface δ15N also showed generally higher values in the central ECS in summer and lower values in winter. The seasonal variations of δ13C and δ15N were largely attributed to the SPM composition change, i.e., more phytoplankton cells in the summer whereas more resuspended sediment particles were present in winter.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 Wiley
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1002/2013JG002487
ISSN
収録物識別子タイプ EISSN
収録物識別子 2169-8961
書誌情報 en : Journal of Geophysical Research Biogeosciences

巻 119, 号 8, p. 1717-1737, 発行日 2014-08-29
著者版フラグ
値 publisher
URI
識別子 http://doi.org/10.1002/2013JG002487
識別子タイプ DOI
URI
識別子 http://hdl.handle.net/2237/25262
識別子タイプ HDL
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