RESPONSE OF INTERNAL PHOSPHORUS TRANSFORMATION IN LAKE SEDIMENTS TO DIFFERENT SULFATE CONCENTRATIONS

被引：0

作者：

Yuan, Tan ^{[1
]}

Hua, Yu-mei ^{[1
]}

Zhu, Duan-wei ^{[1
]}

Zhou, Wen-bin ^{[1
]}

Zhao, Jian-wei ^{[1
]}

机构：

[1] Huazhong Agr Univ, Lab Plant Nutr & Ecol Environm Res, Wuhan 430070, Peoples R China

来源：

FRESENIUS ENVIRONMENTAL BULLETIN | 2011年 / 20卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Sediments; sulfate reduction; sulfide; phosphorus; organic phosphorus fraction; FRESH-WATER WETLANDS; ORGANIC PHOSPHORUS; SHALLOW LAKE; REDUCTION; GERMANY; RELEASE; FRACTIONATION; PHOSPHATE; PROFILES; MOBILITY;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A five week experiment was carried out to test the influence of different sulfate concentrations (CK and addition of 500 mg/L and 1000 mg/L) using sediments and overlying water collected from Lake Nanhu in Wuhan, China. The results showed that, in sediments, pH increased and Eh decreased significantly (p < 0.01) in the first three weeks. The variation of sulfate reduction bacteria (SRB) amount increased initially and then fell, and had direct relation with sulfate concentration in the pore water. High sulfate concentrations led to a significant increase in total phosphorus (TP) and soluble reactive phosphorus (SRP) (p < 0.01) of the overlying water and pore water except for TP concentration of the pore water. TP and labile organic phosphorus (LOP) in sediments decreased significantly compared with the control (P < 0.05) though no significant difference was found in the other forms of phosphorus.

引用

页码：1895 / 1903

页数：9

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