Eutrophication model for river-type reservoir tributaries and its applications
With the impoundment of the Three Gorges Reservoir, algal blooms have been found in some tributaries. In this study, according to the theoretical analysis of the eutrophication mechanism in a river-type reservoir tributary, a one-dimensional eutrophication model was developed for the Xiangxi River t...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2009-03-01
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| Series: | Water Science and Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S167423701530048X |
| _version_ | 1828767406015643648 |
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| author | Ling-ling Wang Zhen-zhen Yu Hui-chao Dai Qing-hua Cai |
| author_facet | Ling-ling Wang Zhen-zhen Yu Hui-chao Dai Qing-hua Cai |
| author_sort | Ling-ling Wang |
| collection | DOAJ |
| description | With the impoundment of the Three Gorges Reservoir, algal blooms have been found in some tributaries. In this study, according to the theoretical analysis of the eutrophication mechanism in a river-type reservoir tributary, a one-dimensional eutrophication model was developed for the Xiangxi River tributary of the Three Gorges Reservoir, and the influence of hydrodynamic conditions on the primary growth rate of algae was investigated. Furthermore, numerical predictions of hydraulic variables and eutrophication factors, such as the concentration distribution of TP, TN, and Chl-a in the spatial and temporal domains, were carried out. Comparison of computation results of TP, TN, and Chl-a concentrations along the river in the spring of 2005 with experimental data demonstrates the validity of the model. The agreement between the computation results and the experimental data of TP and TN concentrations is better than the agreement between those of Chl-a concentration. The simulated results also show that the Chl-a concentration downstream is much higher than that in the upstream tributary, which potentially indicates the outbreak of algae in this area. Therefore, this study provides a feasible method of accurately predicting the state of eutrophication in river-type reservoirs and their tributaries. |
| first_indexed | 2024-12-11T07:26:42Z |
| format | Article |
| id | doaj.art-7df3e43ad16f4324881161a91675d4be |
| institution | Directory Open Access Journal |
| issn | 1674-2370 |
| language | English |
| last_indexed | 2024-12-11T07:26:42Z |
| publishDate | 2009-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Water Science and Engineering |
| spelling | doaj.art-7df3e43ad16f4324881161a91675d4be2022-12-22T01:15:57ZengElsevierWater Science and Engineering1674-23702009-03-0121162410.3882/j.issn.1674-2370.2009.01.002Eutrophication model for river-type reservoir tributaries and its applicationsLing-ling Wang0Zhen-zhen Yu1Hui-chao Dai2Qing-hua Cai3College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, P. R. ChinaCollege of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, P. R. ChinaCollege of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, P. R. ChinaInstitute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, P. R.ChinaWith the impoundment of the Three Gorges Reservoir, algal blooms have been found in some tributaries. In this study, according to the theoretical analysis of the eutrophication mechanism in a river-type reservoir tributary, a one-dimensional eutrophication model was developed for the Xiangxi River tributary of the Three Gorges Reservoir, and the influence of hydrodynamic conditions on the primary growth rate of algae was investigated. Furthermore, numerical predictions of hydraulic variables and eutrophication factors, such as the concentration distribution of TP, TN, and Chl-a in the spatial and temporal domains, were carried out. Comparison of computation results of TP, TN, and Chl-a concentrations along the river in the spring of 2005 with experimental data demonstrates the validity of the model. The agreement between the computation results and the experimental data of TP and TN concentrations is better than the agreement between those of Chl-a concentration. The simulated results also show that the Chl-a concentration downstream is much higher than that in the upstream tributary, which potentially indicates the outbreak of algae in this area. Therefore, this study provides a feasible method of accurately predicting the state of eutrophication in river-type reservoirs and their tributaries.http://www.sciencedirect.com/science/article/pii/S167423701530048Xeutrophication modelriver-type reservoirXiangxi River tributaryalgal blooms |
| spellingShingle | Ling-ling Wang Zhen-zhen Yu Hui-chao Dai Qing-hua Cai Eutrophication model for river-type reservoir tributaries and its applications Water Science and Engineering eutrophication model river-type reservoir Xiangxi River tributary algal blooms |
| title | Eutrophication model for river-type reservoir tributaries and its applications |
| title_full | Eutrophication model for river-type reservoir tributaries and its applications |
| title_fullStr | Eutrophication model for river-type reservoir tributaries and its applications |
| title_full_unstemmed | Eutrophication model for river-type reservoir tributaries and its applications |
| title_short | Eutrophication model for river-type reservoir tributaries and its applications |
| title_sort | eutrophication model for river type reservoir tributaries and its applications |
| topic | eutrophication model river-type reservoir Xiangxi River tributary algal blooms |
| url | http://www.sciencedirect.com/science/article/pii/S167423701530048X |
| work_keys_str_mv | AT linglingwang eutrophicationmodelforrivertypereservoirtributariesanditsapplications AT zhenzhenyu eutrophicationmodelforrivertypereservoirtributariesanditsapplications AT huichaodai eutrophicationmodelforrivertypereservoirtributariesanditsapplications AT qinghuacai eutrophicationmodelforrivertypereservoirtributariesanditsapplications |