中文关键词
控藻人工强制混合扬水曝气系统藻类群落峡谷分层型水源水库 英文关键词algae controlartificialmixingwater-lifting aeratorsalgae communityvalley stratified water source reservoir |
作者 | 单位 | E-mail | 王晨旭 | 西安建筑科技大学陕西省环境工程重点实验室, 西安 710055 西安建筑科技大学西北水资源与环境生态教育部重点实验室, 西安 710055 | wcx1154729747@163.com | 黄廷林 | 西安建筑科技大学陕西省环境工程重点实验室, 西安 710055 西安建筑科技大学西北水资源与环境生态教育部重点实验室, 西安 710055 | huangtinglin@xauat.edu.cn | 李楠 | 西安建筑科技大学陕西省环境工程重点实验室, 西安 710055 西安建筑科技大学西北水资源与环境生态教育部重点实验室, 西安 710055 | | 齐允之 | 西安水务集团黑河金盆水库管理公司, 西安 710401 | | 徐金兰 | 西安建筑科技大学陕西省环境工程重点实验室, 西安 710055 西安建筑科技大学西北水资源与环境生态教育部重点实验室, 西安 710055 | | 司凡 | 西安建筑科技大学陕西省环境工程重点实验室, 西安 710055 西安建筑科技大学西北水资源与环境生态教育部重点实验室, 西安 710055 | | 张晗 | 西安建筑科技大学陕西省环境工程重点实验室, 西安 710055 西安建筑科技大学西北水资源与环境生态教育部重点实验室, 西安 710055 | | 路林超 | 西安建筑科技大学陕西省环境工程重点实验室, 西安 710055 西安建筑科技大学西北水资源与环境生态教育部重点实验室, 西安 710055 | |
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中文摘要 |
为探明人工强制混合过程对水体藻类群落演替的作用影响机制,本研究利用扬水曝气系统对金盆水库主库区水体进行原位人工强制混合,对系统运行过程中水库水体理化参数及藻类进行原位定点监测.结果表明,金盆水库水体藻类共6门28属51种,扬水曝气系统的人工强制混合作用可显著抑制水体藻类的生长,并对其群落结构产生显著影响:扬水曝气系统运行前,藻类主要分布在表层水体,其中以小球藻(Chlorella vulgaris)为优势种属;扬水曝气系统运行后,表层水体藻密度大幅降低,藻密度垂向分布趋于均匀,优势种属有向小环藻属(Cyclotella sp.)演替的趋势.本研究利用冗余分析(RDA)方法,结合临界层理论(critical depth theory)和藻类生长特性,分析了人工强制混合过程中金盆水库水体藻类群落结构时空演替和主要理化参数变化之间的关系.分析结果表明,扬水曝气系统的人工强制混合作用主要通过迅速破坏水体热分层稳定性和显著增加水体混合深度(Zmix)来影响藻类群落结构的时空演替. |
英文摘要 |
To explore the effect mechanism of the artificial mixing process on the temporal and spatial succession of algae community structure in a water body, this study used water-lifting aerators to induce in-situ artificial mixing of the water body of Jinpen Reservoir, and in-situ spot physical-chemical parameters and algae of the water body of the reservoir were observed during an artificial mixing process. A total of 51 species of 28 genera of 6 families of algae were identified in the water body of the Jinpen Reservoir. The artificial mixing effect of the water-lifting aerators significantly inhibited the growth of algae in the water, and had a significant impact on the community structure. Before activation of the water-lifting aerators, algae were mainly distributed in the surface water body, and Chlorella vulgaris was the dominant species. With the operation of the water-lifting aerators, the algal density of surface water body decreased significantly, and the vertical distribution of the algae density in the water body tended to be uniform. The dominant species tended to succeed in Cyclotella sp. This study used the method of redundancy analysis, combined with critical depth theory and the characteristics of algae growth, to analyze the relationship between the spatial-temporal succession of algae community structure and the changes in the main physical-chemical parameters in Jinpen Reservoir during the artificial process. The analysis results showed that the artificial mixing of the water-lifting aerators mainly affects the temporal and spatial succession of the algae community structure by rapidly destroying the thermal stratification stability of the water body and significantly increasing the water mixing depth. |
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