|
|||||
|
|
| 密云水库沉积物中磷释放的环境因子影响实验 | |
| 引用本文： | 徐清,刘晓端,刘浏,武佃卫.密云水库沉积物中磷释放的环境因子影响实验[J].岩矿测试,2005,24(1):19-22. |
| 作者姓名： | 徐清 刘晓端 刘浏 武佃卫 |
| 作者单位： | 1. 国家地质实验测试中心,北京,100037 2. 吉林大学,吉林,长春,130026 3. 北京市水文总站,北京,100039 |
| 基金项目： | 国家重点基础研究发展规划项目(G1999045705) |
| 摘 要： | 为了探讨密云水库沉积物中磷的释放条件,在实验室模拟了改变溶解氧浓度、调节pH、温度等因素对磷释放的影响实验。结果表明:厌氧条件下沉积物中释放磷的总量是好氧条件下的10倍;上覆水pH值升高有利于沉积物中磷的释放;温度升高,沉积物中磷的释放强度随之增大。同时说明了水库内源性磷对水库水质存在着潜在威胁,为研究水库内源性磷对水质的影响和对水库富营养化趋势的预测提供了可靠的依据。 |
| 关 键 词： | 磷 释放 温度 pH 溶解氧 |
| 文章编号： | 0254-5357(2005)01-0019-04 |
Study on Environmental Factors Controlling the Release of Phosphorus in Miyun Reservoir Sediments |
|
| XU Qing,LIU Xiao-duan,LIU Liu,Wu Dian-wei.Study on Environmental Factors Controlling the Release of Phosphorus in Miyun Reservoir Sediments[J].Rock and Mineral Analysis,2005,24(1):19-22. | |
| Authors: | XU Qing LIU Xiao-duan LIU Liu Wu Dian-wei |
| Institution: | XU Qing~1,LIU Xiao-duan~1,LIU Liu~2,Wu Dian-wei~3 |
| Abstract: | The release of phosphorus from the Miyun Reservoir sediments was simulated under the different DO,pH and temperature conditions in the lab. The results showed that in anaerobic condition, the release rate of phosphorus is 10 times as higher as in aerobic condition. With increasing pH of the overlying water, the release rate of phosphorus from the sediments increased. The release rate of phosphorus from the sediments increased with rising of the temperature of the overlying water, indicating that the internal loading of phosphorus could be a potential danger to reservoir water quality, offering a reliable basis to study for the impact of internal loading phosphorus on water quality and prediction of the eutrophication trend of the reservoir. |
| Keywords: | phosphorus release temperature pH dissolved oxygen (DO) |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
| 点击此处可从《岩矿测试》浏览原始摘要信息 | |
| 点击此处可从《岩矿测试》下载免费的PDF全文 | |