| A novel flushing strategy for diatom bloom prevention in the lower-middle Hanjiang River | |
| Yang, Qiang1,2; Xie, Ping1; Shen, Hong1; Xu, Jun1; Wang, Peili1; Zhang, Bin3; Xie, P (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China. | |
| 2012-05-15 | |
| Source Publication | WATER RESEARCH
 |
| ISSN | 0043-1354 |
| Volume | 46Issue:8Pages:2525-2534 |
| Abstract | There are many concerns over the environmental consequences of river regulation in China, such as the Three Gorges Project and the South-to-North Water Diversion Project (SNWDP). In this study, however, we attempted to find the positive role of these constructions in solving environmental problems. We explored the possibility for preventing downstream diatom blooms by using the water storage in the Danjiangkou Reservoir. And we developed a flushing strategy accessing the proper flushing time and water quantity to control the diatom growth. First, we set up a Generalized Additive Model (GAM) to analyze the dynamics of the bloom-formation species, Stephanodiscus hantzschii, in response to the environmental variation. The model took into account the time lags between the biovolume and the environmental parameters. The model indicated that, air temperature explained the most variance in biovolume, followed by soluble reactive silicon (SRSi), turbidity, TP, dam release, PAR, pH and total nitrogen (GAM, R-2 = 0.759). Afterwards, we applied the model to a new predictive dataset, in which values were simulated according to the assumed dam release and air temperature. The GAM predicted fewer releases for flushing by using this dataset than the measured data, implying a prospect of saving water when using this strategy. Finally, we drew a contour map to present the operating procedure of this strategy. Our flushing strategy is to regulate the dam release above a critical value dependent on the air temperatures predicted over the following few days. (C) 2012 Elsevier Ltd. All rights reserved.; There are many concerns over the environmental consequences of river regulation in China, such as the Three Gorges Project and the South-to-North Water Diversion Project (SNWDP). In this study, however, we attempted to find the positive role of these constructions in solving environmental problems. We explored the possibility for preventing downstream diatom blooms by using the water storage in the Danjiangkou Reservoir. And we developed a flushing strategy accessing the proper flushing time and water quantity to control the diatom growth. First, we set up a Generalized Additive Model (GAM) to analyze the dynamics of the bloom-formation species, Stephanodiscus hantzschii, in response to the environmental variation. The model took into account the time lags between the biovolume and the environmental parameters. The model indicated that, air temperature explained the most variance in biovolume, followed by soluble reactive silicon (SRSi), turbidity, TP, dam release, PAR, pH and total nitrogen (GAM, R-2 = 0.759). Afterwards, we applied the model to a new predictive dataset, in which values were simulated according to the assumed dam release and air temperature. The GAM predicted fewer releases for flushing by using this dataset than the measured data, implying a prospect of saving water when using this strategy. Finally, we drew a contour map to present the operating procedure of this strategy. Our flushing strategy is to regulate the dam release above a critical value dependent on the air temperatures predicted over the following few days. (C) 2012 Elsevier Ltd. All rights reserved. |
| Subtype | Article |
| Keyword | Hanjiang River Diatom Bloom Dam Release Temperature Time Lag Generalized Additive Model (Gam) |
| Department | [Yang, Qiang; Xie, Ping; Shen, Hong; Xu, Jun; Wang, Peili] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China; [Yang, Qiang] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China; [Zhang, Bin] Hubei Acad Environm Sci, Wuhan 430072, Peoples R China |
| DOI | 10.1016/j.watres.2012.01.051 |
| WOS Headings | Science & Technology ; Technology ; Life Sciences & Biomedicine ; Physical Sciences |
| Funding Organization | Hubei Project for Research and Development[2008BCA004] ; Hubei Project for Research and Development[2008BCA004] ; Hubei Project for Research and Development[2008BCA004] ; Hubei Project for Research and Development[2008BCA004] |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Engineering ; Environmental Sciences & Ecology ; Water Resources |
| WOS Subject | Engineering, Environmental ; Environmental Sciences ; Water Resources |
| WOS ID | WOS:000303035400005 |
| WOS Keyword | STEPHANODISCUS-HANTZSCHII ; MANAGEMENT STRATEGIES ; CYANOBACTERIAL BLOOMS ; DANJIANGKOU RESERVOIR ; FLOW MANAGEMENT ; LIMITED GROWTH ; WATER-QUALITY ; TEMPERATURE ; DAM ; BACILLARIOPHYCEAE |
| Funding Organization | Hubei Project for Research and Development[2008BCA004] ; Hubei Project for Research and Development[2008BCA004] ; Hubei Project for Research and Development[2008BCA004] ; Hubei Project for Research and Development[2008BCA004] |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ihb.ac.cn/handle/342005/16871 |
| Collection | 淡水生态学研究中心_期刊论文 |
| Corresponding Author | Xie, P (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China. |
| Affiliation | 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.Hubei Acad Environm Sci, Wuhan 430072, Peoples R China |
| Recommended Citation GB/T 7714 | Yang, Qiang,Xie, Ping,Shen, Hong,et al. A novel flushing strategy for diatom bloom prevention in the lower-middle Hanjiang River[J]. WATER RESEARCH,2012,46(8):2525-2534. |
| APA | Yang, Qiang.,Xie, Ping.,Shen, Hong.,Xu, Jun.,Wang, Peili.,...&Xie, P .(2012).A novel flushing strategy for diatom bloom prevention in the lower-middle Hanjiang River.WATER RESEARCH,46(8),2525-2534. |
| MLA | Yang, Qiang,et al."A novel flushing strategy for diatom bloom prevention in the lower-middle Hanjiang River".WATER RESEARCH 46.8(2012):2525-2534. |
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