| A three-dimensional model for the transportation of Fe and Mn in Arha Reservoir |
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| 作者姓名： | CHEN Xiao-hong Allan J Brimicombe |
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| 作者单位： | 1.Department of Geography，Zhongshan University，Guangzhou 510275，China. E\|mail: eescxh@zsu.edu.cn; 2.School of Surveying，University of East London，Longbridge Road，Dagenham，ESSEX RM8 2AS，United King |
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| 基金项目： | Foundationitem :theNationalNaturalScienceFoundationofChina (No.5 95 0 90 0 5 )andScienceFoundationofZhongshan
University. |
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| 摘 要： | ＩｎｔｒｏｄｕｃｔｉｏｎＡｒｈａＲｅｓｅｒｖｏｉｒｉｓｌｏｃａｔｅｄｉｎｔｈｅｐｌａｔｅａｕｒｅｇｉｏｎｏｆＳｏｕｔｈｗｅｓｔＣｈｉｎａ.Ｔｈｉｓｒｅｓｅｒｖｏｉｒ,ｗｉｔｈａｖｏｌｕｍｅｏｆ445ｍｉｌｌｉｏｎｍ3,ｗａｓｂｕｉｌｔｉｎ1960ａｎｄｉｓｔｈ?..
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| 收稿时间： | 1998/11/9 0:00:00 |
| 修稿时间： | 1998/11/30 0:00:00 |
A three-dimensional model for the transportation of Fe and Mn in Arha Reservoir |
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| CHEN Xiao-hong,Allan J Brimicombe.A three-dimensional model for the transportation of Fe and Mn in Arha Reservoir[J].Journal of Environmental Sciences,2000,12(2):161-171. |
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| Authors: | CHEN Xiao-hong Allan J Brimicombe |
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| Abstract: | Coupling with a three dimensional (3D) hydrodynamic model and a suspended solids model, a 3D model for the transport of Fe and Mn in Arha Reservoir, China, was developed. The 3D velocity fields for the flood season are computed to drive the 3D model of Fe and Mn in which the processes of advection, diffusion, redox, sorption, desorption, deposition, and re suspension are included. The model has been calibrated by matching observed fluid, suspended solids, and total concentrations of Fe and Mn in the water column and in the sediment, successively. The model simulated both horizontal and vertical gradients of Fe and Mn in Arha Reservoir. It was found that Fe and especially Mn stratify in accordance with the stratification of DO during summer. The redox cycles across the water sediment interface has a principal role in the rise of Fe and Mn concentrations in the overlying water. It was also found that Fe and Mn loadings from the tributaries have a carryover effect on the water quality through a secondary contamination in the reservoir. |
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| Keywords: | three dimensional model Fe Mn transport flow field Arha Reservoir CLC number: X1 Document code: A |
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