| 厦门汀溪水库溶解有机氮对有毒藻种的生物有效性及其化学本质 |
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| 引用本文： | 王振红,罗专溪,魏群山. 厦门汀溪水库溶解有机氮对有毒藻种的生物有效性及其化学本质[J]. 中国环境科学, 2011, 31(10): 1684-1689 |
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| 作者姓名： | 王振红 罗专溪 魏群山 |
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| 作者单位： | 1. 漳州师范学院化学与环境科学系,福建漳州,363000
2. 中国科学院城市环境研究所城市环境与健康重点实验室,福建厦门,361021 |
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| 基金项目： | 漳州师范学院科学研究资助项目(SJ1007); 国家自然科学基金资助项目(20807033); 福建省自然科学基金资助项目(2009J05033) |
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| 摘 要： | 为探究厦门汀溪水库溶解有机氮(DON)对有毒藻种的生物有效性及其化学本质,采用水样分子质量和极性分级技术,进行铜绿微囊藻 (Microcystis aeruginosa)培养实验.结果表明,汀溪水库中DON含量呈季节性差异,在枯水期比较高,而丰水期比较低.汀溪水库DON在不同季节中的主要成分都是疏水组分和>3kDa组分.汀溪水库DON的生物有效性为65.20%.较疏水组分和>3kDa组分而言,亲水组分和￡3kDa组分DON更易被铜绿微囊藻利用.从水环境和水源保护角度出发,应首先考虑消除DON中的亲水性组分和小分子质量组分.
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| 关 键 词： | 溶解有机氮生 物有效性 有毒藻种 化学本质 |
| 收稿时间： | 2011-01-12; |
Bioavailability of dissolved organic nitrogen to toxic algae and its chemical nature in Xiamen Tingxi reservoir |
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| WANG Zhen-hong,LUO Zhuan-xi,WEI Qun-Shan. Bioavailability of dissolved organic nitrogen to toxic algae and its chemical nature in Xiamen Tingxi reservoir[J]. China Environmental Science, 2011, 31(10): 1684-1689 |
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| Authors: | WANG Zhen-hong LUO Zhuan-xi WEI Qun-Shan |
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| Affiliation: | WANG Zhen-hong1,LUO Zhuan-xi2,WEI Qun-Shan2.(1.Department of Chemistry and Environment Sciences,Zhangzhou Normal University,Zhangzhou 363000,China,2.Key Laboratory of Urban Environment and Health,Institute of Urban Environment,Chinese Academy of Sciences,Xiamen 361021,China) |
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| Abstract: | To explore the bioavailability of DON to toxic algae and its chemical nature in Xiamen Tingxi reservoir,an experiment on the growth of Microcystis aeruginosa was conducted based on the solid phase extraction and membrane separation technique for water sample.Results showed that it is variable for the different seasonal concentrations of DON in Tingxi reservoir.DON concentration was higher in dry season,but lower in wet season.The primary components of DON were hydrophobic and >3kDa counterparts in both dry ... |
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| Keywords: | dissolved organic nitrogen bioavailability toxic algae chemical nature |
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