首页|期刊导航|中国地球化学学报(英文版)|Vertical variation of phosphorus forms in surface sediments from Wuli Bay,Taihu Lake,China
中国地球化学学报(英文版)2006，Vol.25Issue(3)：279-284,6.
Vertical variation of phosphorus forms in surface sediments from Wuli Bay,Taihu Lake,China
Vertical variation of phosphorus forms in surface sediments from Wuli Bay,Taihu Lake,China
摘要
Abstract
In order to investigate the cycling of phosphorus in the Taihu Lake, a sequential extraction technique was used to separate different phosphorus forms in surficial sediments from the Wuli Bay of the -90% ), a large portion (75% -85%) of which lies in the CDB-extractable iron oxide phase. The low Fe/P atomic ratios (2.0 - 5.3) indicate that the Fe compounds extracted with CDB have a lower proportion of relatively crystalline phases in all samples, and that the absorption between iron and phosphorus has probably reached certain equilibrium. Organic C/N atomic ratios ( 8.8 - 10.6) for most of the samples are lower, which suggests a lacustrine authigenic source of organic matter in the sediments. Moreothat the organic phosphorus had been preferentially released via organic matter degradation during the early diagenesis process.关键词
sequential extraction/phosphorus/forms/sediment/Taihu LakeKey words
sequential extraction/phosphorus/forms/sediment/Taihu Lake分类
天文与地球科学引用本文复制引用
LI Jun,LIU Congqiang,WANG Shilu,ZHU Zhaozhou,ZHOU Zhihua,XIAO Huayun..Vertical variation of phosphorus forms in surface sediments from Wuli Bay,Taihu Lake,China[J].中国地球化学学报(英文版),2006,25(3):279-284,6.基金项目
Supported by the Knowledge Innovation Major Projects of Chinese Academy of Sciences ( Nos. KZCX1-SW-12 and KZCX2-105 ). （ Nos. KZCX1-SW-12 and KZCX2-105 ）
