| 水动力条件下底泥中氮磷释放通量 |
| |
| 引用本文： | 李一平,逄勇,吕俊,张刚,丁玲,彭进平,王超,范丽丽.水动力条件下底泥中氮磷释放通量[J].湖泊科学,2004,16(4):318-324. |
| |
| 作者姓名： | 李一平 逄勇 吕俊 张刚 丁玲 彭进平 王超 范丽丽 |
| |
| 作者单位： | 1. 河海大学环境科学与工程学院,南京,210098
2. 广西省水资源局,南宁530023 |
| |
| 基金项目： | 国家自然科学基金(50239030)
国家"863""十五"重大科技专项(2003AA6011002)
江苏省自然科学基金(BK2002067)联合资助 |
| |
| 摘 要： | 在环形水槽内模拟了水动力条件下底泥的起动规律，分析了底泥运动的不同状态。该环形水槽内水体流速基本均匀，水槽转速与槽内水体流速能够精确的相互转换，实验中通过改变水槽转速模拟了不同扰动强度下底泥悬浮和释放的规律．以太湖底泥为例，通过上覆水中TN、TP浓度的变化，建立了底泥中TN、TP的释放通量(y)与水流(x)的关系，其表达式为TN：y=137．88e^0.06x(R^2=0．94)；TP：y=36．78e^0.56x(R^2=0．97)；并将该实验结果应用在太湖的水量水质模型中，取得了比较满意的效果．
|
| 关 键 词： | 底泥释放 水动力 环形水槽 数学模型 太湖 |
| 收稿时间： | 2003/11/15 0:00:00 |
| 修稿时间： | 2003年11月15 |
On the Relation Between the Release Rate of TN, TP from Sediment and Water Velocity |
| |
| LI Yiping,PANG Yong,LU Jun,ZHANG Gang,DING Ling,PENG Jinping,WANG Chao and FAN LiLi.On the Relation Between the Release Rate of TN, TP from Sediment and Water Velocity[J].Journal of Lake Science,2004,16(4):318-324. |
| |
| Authors: | LI Yiping PANG Yong LU Jun ZHANG Gang DING Ling PENG Jinping WANG Chao and FAN LiLi |
| |
| Institution: | LI Yiping,PANG Yong,LU Jun,ZHANG Gang,DING Ling,PENG Jinping,WANG Chao & FAN Lili College of Environment Science and Engineering,Hohai University,Nanjing 210098,P. R. China, Hydrology and Water Resources Bureaus of Guangxi province,Nanning 530023,P. R. China) |
| |
| Abstract: | The starting principles of bottom mud in Lake Taihu were simulated in the laboratory in an annular tank; and the different stages of bottom mud movement were analyzed in this paper. The velocity of flow was basically uniformity in this annular tank, the rotation rate of tank and velocity of flow can be converted accurately, the law of sediment suspension and releasing were simulated by different disturbance forces. The sediments from Lake Taihu were used in this experiment, the relational expression between the release rate of TN, TP and water velocity was calculated on the basis of the relationship between the concentration of TN, TP and water velocity. The calculated result was applied in the mathematical model of water flow and water quality in Lake Taihu, and a satisfactory result was obtained. |
| |
| Keywords: | Release from sediment hydrodynamic annular tank mathematical model Lake Taihu |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《湖泊科学》浏览原始摘要信息 |
| 点击此处可从《湖泊科学》下载免费的PDF全文 |
|
