Depositional Records of Environmental Evolution during the Recent 150 Years in the Intertidal Zone of Longmen Island , Guangxi Province
详细信息
- 责任者：Xia Peng (First Institute of Oceanography ; State Oceanic Administration ; Qingdao 266061 ; China) ; Meng Xianwei
- 刊名：Marine Geology & Quaternary Geology
- 出版年：2011
- 卷期：31(1)
- 关键词：潮间带 ; intertidal zones ; 环境污染 ; environmental pollution ; 广西 ; Guangxi Province
- 页码：p.51-59
- 图表：6 illus., 2 tables, 42 refs.
- 分类号：0200
- 出版序号：20120024
- issnNo：ISSN0256-1492
- isbnNo：CN37-1117/P
摘要
A sediment Core LM01 was collected from the intertidal zone of the Longmen Island, Guangxi. Grain size, biogenic elements (TOC, TN and TP) and heavy metals (Hg, Cu, Pb, Zn, Cd, Cr, As) were analyzed for the core sediment in order to study the environmental evolution in the recent 150 years. Integrated from all indicators, the environmental evolution of the Longmen Island in the recent 150 years can be divided into two stages: 1) before the 1970s, it was characterized by the relatively low heavy metal pollution and scarce eutrophication; and 2) after the 1970s, the concentrations of heavy metals, total phosphorus and oil-related organic matters increase significantly, indicating the anthropogenic impact.