摘要
2004—2005年对连年发生比较严重水华的官厅水库进行了2a的浮游植物动态监测,并在2005年6—8月应用酶联免疫吸附法检测了主要水华藻类———铜绿微囊藻藻毒素质量浓度及其季节变化,初步探讨了微囊藻毒素质量浓度与铜绿微囊藻细胞密度之间的关系。实验结果表明,水库中的浮游植物细胞密度高,2004年平均值为1308.35×104cells/L,2005年达1599.49×104cells/L,同时呈现出明显的季节变化,在夏末秋初形成高峰。产毒的铜绿微囊藻为夏季最主要的优势水华种类,其细胞密度在7月达到最高,为4748.58×104cells/L;微囊藻毒素的质量浓度在7月亦达到最高值,为20μg/L,都显著高于6月和8月(p<0.05)。水体中微囊藻毒素质量浓度与微囊藻细胞密度呈正相关关系(R=0.926)。其结果为全面了解官厅水库水质状况以及对水污染进行治理,恢复其饮用水源的功能提供了科学依据。
The given paper intends to report the authors＇ survey on the phytoplankton of Guanting Reservoir which has been done during the period of 2004--2005. In doing so, we have done some testing and measurements on the microcystins mass concentration and its change during the three months, that is, in June, July and August, 2005, by using enzyme-linked immunosorbnent assay in hoping to investigate the correlation of microcystins mass concentration with the cell density of microcystis aeruginosa. The results of our survey indicate that the cell density of phytoplankton in the Reservoir is very high. The annual average of phytoplankton existence of 2004 and 2005 worked out at 1 308.35 × 10^4 cells/L and 1 599.49 × 10^4 cells/ L, respectively. In addition, the phytoplankton cell densities prove to be constantly varying with the change of seasons with the peak value resulted during summer and fall. Microcystis aeruginosa, which can be made toxic is the main preponderant species. To be exact, both mierocystis aeruginosa cell densities and the microcystins mass concentration under study reached their peak value in July, with the maximum of microcystis aeruginosa cell densities and microcystins mass concentration being 4 748.58 × 10^4 cells/L and 20 μg/L, respectively. Thus, a positive correlation between microcystis aeruginosa cell densities and microcystins mass concentration has been found to be R = 0.926, which can serve as the scientific basis for evaluating the water quality of the reservoir and available for the water pollution control and purifying for drinking and other purposes of human consumption.
出处
《安全与环境学报》
CAS
CSCD
2006年第5期53-56,共4页
Journal of Safety and Environment
基金
北京市科学技术委员会项目(H020620300330)
