| 黄河玛曲至临河段硅藻群落组成及水质评价 |
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| 引用本文： | 赵梦瑶,梁恩航,陈颖,何一凡,王佳文. 黄河玛曲至临河段硅藻群落组成及水质评价[J]. 北京大学学报(自然科学版), 2022, 58(1): 169-176. DOI: 10.13209/j.0479-8023.2021.124 |
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| 作者姓名： | 赵梦瑶 梁恩航 陈颖 何一凡 王佳文 |
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| 作者单位： | 1. 北京大学深圳研究生院环境与能源学院, 深圳 5180552. 教育部水沙科学重点实验室, 北京大学环境工程系, 北京 1008713. 西安理工大学水利水电学院, 西安 710048 |
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| 基金项目： | 中国博士后科学基金(2020M680243)资助； |
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| 摘 要： | 为深入了解黄河玛曲至临河段这一重要水源地的水质,于2015年春季和秋季分别在10个采样断面采集硅藻群落样品.利用形态学鉴定方法,共鉴定出硅藻2纲9目12科13属24种.NMDS和ANOSIM分析结果显示,硅藻群落组成具有显著的季节差异,春季硅藻的细胞密度和生物量均低于秋季.基于硅藻指示生物法和香农多样性指数(H)法进行...
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| 关 键 词： | 黄河玛曲至临河段 硅藻 群落组成 水质评价 |
| 收稿时间： | 2021-03-18 |
Diatom Community Structure and Water Quality Evaluationin the Maqu-Linhe Section of the Yellow River |
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| ZHAO Mengyao,LIANG Enhang,CHEN Ying,HE Yifan,WANG Jiawen. Diatom Community Structure and Water Quality Evaluationin the Maqu-Linhe Section of the Yellow River[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2022, 58(1): 169-176. DOI: 10.13209/j.0479-8023.2021.124 |
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| Authors: | ZHAO Mengyao LIANG Enhang CHEN Ying HE Yifan WANG Jiawen |
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| Affiliation: | 1. School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 5180552. Key Laboratory of Water and Sediment Sciences (MOE), Department of Environmental Engineering, Peking University, Beijing 1008713. School of Water Resources and Hydropower Engineering, Xi’an University of Technology, Xi’an 710048 |
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| Abstract: | To further investigate the water quality in the Maqu-Linhe section of the Yellow River, which is an important water source, diatoms were collected from ten sites in spring and autumn of 2015. Based on the morphological identification method, 24 species belonging to 2 classes, 9 orders, 12 families, and 13 genera were characterized. The cell density and biomass of diatom were lower in spring than those in autumn, which was further proved by NMDS and ANOSIM analysis. Water quality assessment based on indicator diatoms revealed that Nitzschia palea indicating polysaprobic zone was detected in some sites such as Linhe, Qingtongxia, Lanzhou, and Maqu, which was consistent with the assessment from the Shannon diversity index (H). Water quality was characterized as slight-moderate pollution with low diatom diversity in the Maqu-Linhe section of the Yellow River. The water quality of this river section in spring (H=1.91±0.67) was slightly better than that in autumn (H=1.58±0.49), which might be related to the higher DNR in spring. |
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| Keywords: | Maqu-Linhe section of the Yellow River diatom composition water quality assessment |
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