| 福建省山仔水库和杜塘水库沉积物叶绿素a比较研究 |
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| 引用本文： | 林慧,苏玉萍,庄一廷,钟厚璋,林佳,金华.福建省山仔水库和杜塘水库沉积物叶绿素a比较研究[J].福建地理,2011(4):42-48. |
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| 作者姓名： | 林慧 苏玉萍 庄一廷 钟厚璋 林佳 金华 |
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| 作者单位： | [1]福建师范大学环境科学与工程学院,福州350007 [2]福建省环境保护监测中心站,福州350003 |
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| 基金项目： | 基金项目：福建省自然科学基金（2010J01250）、福建省教育厅科学研究基金（JA10085）、福建师范大学本科生课外创新项目（BKL2011-027）联合资助 |
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| 摘 要： | 采集了福建省山仔水库和杜塘水库的冬季沉积物，采用显微镜观察和荧光分析方法，对不同深度沉积物叶绿素a的含量以及微藻的丰度进行了分析．研究结果表明，山仔水库沉积物表层叶绿素a含量达到4692ng／g底泥干重，微藻的丰度为33．79×10^6Cells／g底泥干重，其中蓝藻门的丰度为6．77×10^6Cells／g底泥干重；杜塘水库沉积物表层叶绿素a含量为2301ng／g底泥干重，微藻的丰度为16．5×10^6Cells／g底泥干重，其中蓝藻门丰度为8．91×10^6vvCells／g底泥干重，山仔水库沉积物表层叶绿素a的含量和微藻丰度都约是杜塘水库的2倍，沉积物中叶绿素a的含量和微藻的生物量与其富营养化程度表现出一致性：富营养化程度高的山仔水库，沉积物中叶绿素a含量和微藻丰度相应也高，沉积物叶绿素a含量可以反映2个水库水体的富营养化状态．
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| 关 键 词： | 沉积物 微藻 叶绿素a 水库 富营养化 |
A Comparison of Chlorophyll-a in the Sediments of Two Reservoirs in Fujian Province |
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| LIN Hui,SU Yu-ping,ZHUANG Yi-ting,ZHONG Hou-zhang,LIN Jia,JIN Hua.A Comparison of Chlorophyll-a in the Sediments of Two Reservoirs in Fujian Province[J].Fujian Geography,2011(4):42-48. |
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| Authors: | LIN Hui SU Yu-ping ZHUANG Yi-ting ZHONG Hou-zhang LIN Jia JIN Hua |
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| Institution: | 1. Environmental Science and Engineering College, Fujian Normal University, Fuzhou 350007, China; 2. Fujian Provincial Environmental Monitoring Center, Fuzhou 350003, China) |
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| Abstract: | We studied variations of microalgae biomass （including the abundance of microalgae and the content of Chl. a） in the winter sediments of the Shanzai and the Dutang reservoirs in Fujian prov- ince. The phytoplankton counting measure and fluorescence analysis were used to find out the charac- ter of microalgae accumulated in the sediments of these two different eutrophic reservoirs. Results showed that in the surface sediment of Shanzai reservoir, the content of ehlorophyll-a was 4 692 ng per gram dry sediment, the abundance of mieroalgae was 33.79 ×10^6 Cells per gram of dry sediment and the abundance of cyanobacteria was 6.77 ×10^6 Cells per gram of dry sediment; while in the surface sediment of Dutang reservoir, the content of chlorophyll-a was 2 301 ng per gram dry sediment, the a- bundance of microalgae was 16.5 ×10^6 Cells per gram of dry sediment and the abundance of eyanobac- teria was 8.91 ×10^6Cells per gram of dry sediment. Chl. a content in the surface sediment of Shanzai reservoir was 2 times of that in the surface sediment of Dutang reservoir and the abundance of mieroal- gae was even 2 times. The mieroalgae biomass in the sediments was consistent with the degree of eu-trophication situation, for example, Shanzai reservoir had a higher content of Chl. a and larger mi- croalgae biomass, indicating its higher eutrophication level. The study showed that mieroalgae biomass in sediments can reflect eutrophication state. |
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| Keywords: | sediment microalgae chlorophyll-a reservoir eutrophication |
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