| 黄河中下游表层沉积物磷的赋存形态特征 |
| |
| 引用本文： | 王晓丽,张丽坤.黄河中下游表层沉积物磷的赋存形态特征[J].生态环境,2011,20(5):904-907. |
| |
| 作者姓名： | 王晓丽 张丽坤 |
| |
| 作者单位： | 内蒙古师范大学化学与环境科学学院,呼和浩特内蒙古010022;内蒙古化工职业学院,呼和浩特内蒙古010010 |
| |
| 基金项目： | 内蒙古自然科学基金项目(20080404MS0602); 内蒙古自治区高等学校科学技术研究项目(NJ10044); 内蒙古自治区人才开发基金项目 |
| |
| 摘 要： | 利用淡水沉积物中磷形态的标准测试程序（SMT）,研究了黄河中下游10个沉积物样品中磷的赋存形态变化规律和分布特征,并分析了沉积物中磷的来源和释放潜力。研究结果表明,黄河中下游沉积物中总磷（TP）的含量为85.0~128.2 mg.kg-1,无机磷（IP）的含量范围在52.4~80.0 mg.kg-1,有机磷（OP）的含量范围在28.4~48.2 mg.kg-1。其中主要以无机磷的形式存在,而无机磷中以钙结合态磷为主。线性回归分析结果表明,NaOH-P的含量与活性态Fe、Al含量总和有一定的线性关系。黄河沉积物向上覆水体释放磷的潜力不大。
|
| 关 键 词： | 黄河 沉积物 磷形态 磷形态的标准测试程序（SMT） |
Character of Phosphorus forms in Surface Sediments from Middle and Lower Reaches of Yellow River |
| |
| WANG Xiaoli,ZHANG Likun.Character of Phosphorus forms in Surface Sediments from Middle and Lower Reaches of Yellow River[J].Ecology and Environmnet,2011,20(5):904-907. |
| |
| Authors: | WANG Xiaoli ZHANG Likun |
| |
| Institution: | WANG Xiaoli,ZHANG Likun Chemistry & Environment Science College,Inner Mongolia Normal University,Huhhot 010022,China |
| |
| Abstract: | Phosphorus forms in the surface sediments from 10 representative sites along the middle and lower reaches of Yellow River were investigated using the Standard Measurement and Test（SMT） procedure of phosphorus forms in freshwater sediments.The concentration of Total Phosphorus（TP） in the sediments ranged from 85.0 mg？kg-1 to 128.2 mg？kg-1.The Inorganic Phosphorus（IP） concentration ranged from 52.4 mg？kg-1 to 80.0 mg？kg-1.The Organic Phosphorus（OP） concentration was 28.4 ~48.2 mg？kg-1.The P fractional composition showed that the sediments were dominated by IP and the P associated with Ca（HCl-P） was the major part of IP.The linear relationship between the NaOH-P and the sum of active Fe and Al was observed within the ten sediments.The potential of phosphorus release from Yellow River sediments to water bodies was not significant. |
| |
| Keywords: | Yellow River sediment phosphorus forms SMT |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
