Loess Sedimentary Organic Matter Records From the Central Chinese Loess Plateau and the Implication of C/N
详细信息
- 责任者：Zhang Pu (State Key Lab. of Loess and Quaternary Geology ; Institute of Earth Environment ; Chinese Academy of Sciences ; Xi’an 710075 ; China) ; Liu Weiguo
- 刊名：Marine Geology & Quaternary Geology
- 出版年：2008
- 卷期：28(6)
- 关键词：黄土 ; loess ; 晚更新世 ; Upper Pleistocene ; 全新世 ; Holocene ; 黄土高原 ; Loess Pleteau
- 页码：p.119-124
- 图表：3 illus., 39 refs.
- 分类号：1400
- issnNo：ISSN0256-1492
- isbnNo：CN37-1117/P
摘要
C/N ratio is extensively used to reflect the sources of the organic matter in the lake sediments. In some districts, such as frozen soil districts, the tropical zone and Mediterranean area, it indicates the degree of soil organic matter (SOM) degradation. However, there are few discussions about the implication of C/N ratio in Chinese loess sediments until now. The result shows that, the downcore distributions of magnetic susceptibility, TOC and TN content, and C/N ratio exhibit the similar trends with higher value in paleosol and lower in loess.