Biogenic Silica Distribution in the Sediments from Arrow Bamboo Lake in Jiuzhaigou World Nature Heritage Reserve , China
详细信息
- 责任者：Li Shiguang (Department of Environmental Science and Engineering ; Sichuan University ; Chengdu 610065 ; China) ; Hu Xinxin
- 刊名：Journal of Mountain Science
- 出版年：2011
- 卷期：29(4)
- 关键词：湖泊沉积物 ; lake sediments ; 硅 ; silicon ; 四川 ; Sichuan Province
- 页码：p.395-401
- 图表：5 illus., 1 table, 28 refs.
- 分类号：1400
- 出版序号：1931
- issnNo：ISSN1008-2786
- isbnNo：CN51-1516/P
摘要
The Biogenic silica (BSi) contents were determined in the sediments from Arrow Bamboo Lake in Jiuzhaigou National Reserve. Furthermore, the relationship between sediment total organic carbon (TOC) content, grain-size fraction and BSi content were discussed in order to trace the anthropogenic and/or natural effect on water quality and lacustrine sedimentation. The content of BSi ranged between 5.5 and 15.8 mg/g, and the BSi content in the sediments had a significantly positive correlation with TOC. Also, the BSi content was mainly controlled by the grain-size distribution in the core sediments, and the stronger adsorption to BSi occurred in the finer grain fraction.