DOI: 10.1016/j.marpolbul.2017.11.025
Scopus记录号: 2-s2.0-85034239229
论文题名: Identification of the earlier human-induced sedimentation change in Daya Bay, northern South China Sea using 210Pb and 137Cs
作者: Yang W. ; Zhao X. ; Zhang F. ; Fang Z. ; Ma H. ; Chen M. ; Qiu Y. ; Zheng M.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2018
卷: 126 起始页码: 334
结束页码: 337
语种: 英语
Scopus关键词: Contamination
; Marine pollution
; Anthropogenic activity
; Chinese economy
; Coastal area
; Environmental problems
; Natural process
; Northern South China Sea
; Specific activity
; Time-scales
; Sediments
; cesium 137
; lead 210
; anthropogenic effect
; cesium isotope
; human activity
; lead isotope
; marine sediment
; sediment pollution
; sedimentation
; Article
; China
; controlled study
; environmental reclamation
; human
; human activities
; sea pollution
; sediment
; sedimentation
; sedimentation rate
; China
; Daya Bay
; Guangdong
; Pacific Ocean
; South China Sea
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Over the past 30 years, the rapid development of the Chinese economy resulted in environmental problems, especially in coastal areas. To discern the effects of anthropogenic activities, 210Pb and 137Cs were examined in the sediment from Daya Bay, northern South China Sea. The specific activity of 137Cs showed a clear maximum, corresponding to 1963. 210Pb specific activity varied from 25.1 to 78.5 Bq kg− 1. 210Pb distribution showed a hiatus at 18–19 cm with 5–6 cm of older sediment (> 150 years), indicating direct land-originating material over a short timescale rather than natural processes. This event was attributed to the human-induced redistribution of sediment during reclamation. Based on the 137Cs-labeled 1963 and 210Pb-chronologies, this event was confined to late 1977, earlier than the generally recognized significant anthropogenic activities. Thus, information archived in the sediment or in records prior to the 1970s would be better environmental background in Daya Bay. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88578
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
Recommended Citation:
Yang W.,Zhao X.,Zhang F.,et al. Identification of the earlier human-induced sedimentation change in Daya Bay, northern South China Sea using 210Pb and 137Cs[J]. Marine Pollution Bulletin,2018-01-01,126