Organic carbon source tracing and DIC fertilization effect in the Pearl River: Insights from lipid biomarker and geochemical analysis
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- 作者：Mingxing Yang ; Zaihua Liu ; liuzaihua@vip.gyig.ac.cn" class="auth_mail" title="E-mail the corresponding author ; Hailong Sun ; Rui Yang ; Bo Chen
- 关键词：Lipid biomarker ; Carbon source ; Carbonate weathering ; In-river primary production ; Missing carbon sink ; DIC fertilization effect ; Pearl River
- 刊名：Applied Geochemistry
- 出版年：2016
- 出版时间：October 2016
- 年：2016
- 卷：73
- 期：Complete
- 页码：132-141
- 全文大小：2238 K
文摘
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Biomarkers and geochemical proxies were analyzed to determine OC sources.
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The calculated autochthonous OC was over 65% of the total OC in the Pearl River.
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Phytoplankton biomass and DIC concentration were positively related.
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The positive relationship indicates DIC fertilization effect on the photosynthesis.
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DIC fertilization effect may contribute to the missing carbon sink.