Recent oxygen depletion in the Pearl River Estuary, South China: geochemical and microfaunal evidence
Ye, F; Huang, XP; Zhang, X; Zhang, DW; Zeng, YY; Tian, L; xphuang@scsio.ac.cn
2012
发表期刊JOURNAL OF OCEANOGRAPHY
ISSN0916-8370
卷号68期号:3页码:387-400
摘要We examined a suite of geochemical and microfaunal indicators in Pb-210-dated sediment cores from the Pearl River Estuary, South China, to determine the historical course of oxygen conditions. The results revealed a substantial increase in nutrient elements and primary production in the sediment over the last 3 decades, which could be interpreted as a recent increase in the extent of eutrophic condition in the Pearl River Estuary. Furthermore, total foraminifers decreased abruptly in abundance while the species Ammonia beccarii, which is tolerant of low-oxygen conditions and high organic fluxes, showed a marked increase in relative abundance after the 1970s. These faunal changes implied that significant deterioration had occurred in the bottom water oxygen conditions since the late 1970s. This degradation could be caused by the increased nutrient and organic loading to the estuarine system, which is likely related to the rapid urbanization and industrial development in the Pearl River Delta during this period.
部门归属[Ye, Feng; Huang, Xiaoping; Zhang, Xia; Zhang, Dawen; Zeng, Yanyi; Tian, Lei] Chinese Acad Sci, S China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China; [Ye, Feng; Zeng, Yanyi; Tian, Lei] Chinese Acad Sci, Grad Univ, Beijing, Peoples R China
关键词Oxygen Depletion Eutrophication Sediments Geochemistry Benthic Foraminifera Pearl River Estuary
学科领域Oceanography
语种英语
资助项目LTO
WOS记录号WOS:000307296300002
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被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/10159
专题热带海洋环境国家重点实验室(LTO)
通讯作者xphuang@scsio.ac.cn
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GB/T 7714
Ye, F,Huang, XP,Zhang, X,et al. Recent oxygen depletion in the Pearl River Estuary, South China: geochemical and microfaunal evidence[J]. JOURNAL OF OCEANOGRAPHY,2012,68(3):387-400.
APA Ye, F.,Huang, XP.,Zhang, X.,Zhang, DW.,Zeng, YY.,...&xphuang@scsio.ac.cn.(2012).Recent oxygen depletion in the Pearl River Estuary, South China: geochemical and microfaunal evidence.JOURNAL OF OCEANOGRAPHY,68(3),387-400.
MLA Ye, F,et al."Recent oxygen depletion in the Pearl River Estuary, South China: geochemical and microfaunal evidence".JOURNAL OF OCEANOGRAPHY 68.3(2012):387-400.
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