浅谈敖江山仔水库蓝藻水华成因及防治对策

Discussion on Causes of Cyanobacterial Blooms in Aojiang Shanzai Reservoir and the Countermeasures for Prevention and Treatment

敖江山仔水库为福州市重要水源地,现状水质较好,稳定在Ⅱ-Ⅲ类,但夏秋季节库区范围内蓝藻水华现象不容忽视,严重时库心点位水华预警等级可达Ⅰ级预警。为保障饮用水安全,敖江山仔水库蓝藻水华防治刻不容缓。本文结合福建省湖库流域生态修复工程研究中心2021年4、5月对山仔水库的跟踪监测数据,分析蓝藻水华优势藻类以及形成原因,探究山仔水库富营养分布特征,并提出库区藻类水华的针对性防治管理对策与建议。

Shanzai Reservoir is an important water source in Fuzhou. The current water quality is good, However, the cyanobacterial bloom phenomenon in the reservoir area in summer and autumn cannot be ignored, and the warning level of the bloom at the central point of the reservoir even can reach grade Ⅰ.In order to ensure the safety of drinking water, the prevention and control of cyanobacterial bloom in Shanzai Reservoir is urgent. Based on the tracking and monitoring data of Shanzai Reservoir by Fujian Lake-Reservoir Basin Ecological Restoration Engineering Research Center in April and May 2021, this paper determines the dominant algae and causes of cyanobacterial blooms, explores the eutrophic distribution characteristics of Shanzai Reservoir, and put forward targeted prevention and management countermeasures for algal blooms in the reservoir area.