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Environmental changes reflected by sedimentary geochemistry in recent hundred years of Jiaozhou Bay, North China
Dai, Jicui; Song, Jinming; Li, Xuegang; Yuan, Huamao; Li, Ning; Zheng, Guoxia
2007-02-01
Source PublicationENVIRONMENTAL POLLUTION
ISSN0269-7491
Volume145Issue:3Pages:656-667
SubtypeArticle
AbstractSediment geochemical technique was employed to assess how the sediment records reflect the environmental changes of Jiaozhou Bay, a semi-enclosed bay adjacent to Qingdao, China. In the past hundred years, Jiaozhou Bay has been greatly impacted by human interventions. A dated core sediment by Pb-210 chronology was analyzed for trace metals including Li, Cd, Cr, Pb, Cu, Ni, Co, Zn together with C, N, P and BSi. Based on the research, the development of Jiaozhou Bay environment in the past hundred years can be divided into three stages: (1) before the 1980s characterized by relatively low sedimentation rate, weak heavy metal pollution and scarce eutrophication; (2) from the 1980s to 2000, accelerating in the 1990s, during which high sedimentation rates, polluted by heavy metals and the frequent occurrence of red tide; (3) after 2000, the period of the improvement of environment, the whole system has been meliorated including the heavy metal pollution and hypernutrification. (c) 2006 Elsevier Ltd. All rights reserved.; Sediment geochemical technique was employed to assess how the sediment records reflect the environmental changes of Jiaozhou Bay, a semi-enclosed bay adjacent to Qingdao, China. In the past hundred years, Jiaozhou Bay has been greatly impacted by human interventions. A dated core sediment by Pb-210 chronology was analyzed for trace metals including Li, Cd, Cr, Pb, Cu, Ni, Co, Zn together with C, N, P and BSi. Based on the research, the development of Jiaozhou Bay environment in the past hundred years can be divided into three stages: (1) before the 1980s characterized by relatively low sedimentation rate, weak heavy metal pollution and scarce eutrophication; (2) from the 1980s to 2000, accelerating in the 1990s, during which high sedimentation rates, polluted by heavy metals and the frequent occurrence of red tide; (3) after 2000, the period of the improvement of environment, the whole system has been meliorated including the heavy metal pollution and hypernutrification. (c) 2006 Elsevier Ltd. All rights reserved.
KeywordGeochemical Records Environmental Changes Biogenic Elements Trace Metal Jiaozhou Bay Sediments
Subject AreaEnvironmental Sciences
DOI10.1016/j.envpol.2006.10.005
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Indexed BySCI
Language英语
WOS IDWOS:000244410800007
Citation statistics
Cited Times:162[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/5324
Collection海洋生态与环境科学重点实验室
Affiliation1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Shandong, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Dai, Jicui,Song, Jinming,Li, Xuegang,et al. Environmental changes reflected by sedimentary geochemistry in recent hundred years of Jiaozhou Bay, North China[J]. ENVIRONMENTAL POLLUTION,2007,145(3):656-667.
APA Dai, Jicui,Song, Jinming,Li, Xuegang,Yuan, Huamao,Li, Ning,&Zheng, Guoxia.(2007).Environmental changes reflected by sedimentary geochemistry in recent hundred years of Jiaozhou Bay, North China.ENVIRONMENTAL POLLUTION,145(3),656-667.
MLA Dai, Jicui,et al."Environmental changes reflected by sedimentary geochemistry in recent hundred years of Jiaozhou Bay, North China".ENVIRONMENTAL POLLUTION 145.3(2007):656-667.
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