| 光谱学与光谱分析 |
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| Planktonic Algae’s Distribution and Correlation with Dissolved Organic Matters’ Fluorescence in the End of the Three Gorges Reservoir’s Back Water Zone |
| FAN Lei-lei1, LI Si2, YU Dan-ni2, HE Qiang1*, JI Fang-ying1, JIANG Zhong-yuan2, GAO Zhi-xi2, AO Ke-hou2 |
1. Key Laboratory of the Three Gorges Reservoir Region’s Eco-Environment, Ministry of Education, Chongqing University，Chongqing 400045, China
2. Zunyi Normal College, School of Chemistry and Chemical Engineering, Zunyi 563002, China |
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Abstract For researching the community structure, composition, and distribution of the planktonic algae in the Three Gorges Reservoir(TRG), especially, within TRG water levels’ fluctuating, mpacting to water quality with the algae’s growing, 6 sampling cites in the end of the TGR’s back water zone, from Chaotianmen to Taihonggang Town, are chosen to monitor, at the sensitive stages time of algal bloom between March to May 2012, namely, water levels lowing from the highest impounding. the community’s structure, composition, and distribution of the planktonic algae in the TGR, and the correlation of water quality parameters and DOM’s fluorescence features with algae density, are obtained. According to the experimental results, blue algae fibre, chlorella, melosira, navicula are the dominated algae in the end of the TGR’s back water zone, from Chaotianmen to Taihonggang Town, algae density are 0.40～0.56×106，1.9～0.8×106，0.36～0.25×106，0.42～0.15×106 cells·L-1 respectively. Besides, anabaena, phormidium, cladophora, feather, ovate algae are existing in only limited 2 sections. The fitting results reveal obvious linear correlation of the EEM characteristics of DOM with the 4 kinds of dominated algal density, which could be useful conference for the algae bloom monitor, conveniently and effectively.
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Received: 2014-08-01
Accepted: 2014-12-05
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Corresponding Authors:
HE Qiang
E-mail: hq0980@126.com
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