汉江下游硅藻水华调查及影响因素分析  

Investigation of Diatom Blooms and Analysis of Influencing Factors in the Lower Hanjiang River

作　　者：陈建华 谢占领 熊晶 CHEN Jianhua;XIE Zhanling;XIONG Jing(Hubei Huangda Environmental Protection Technology Consulting Ltd.,Huanggang 438000,China;Yingshan County Branch of Huanggang Ecological Environment Bureau,Huanggang 438700,China;Hubei Provincial Ecological Environment Monitoring Center Station,Wuhan 430000,China)

机构地区：[1]湖北黄达环保技术咨询有限公司,湖北黄冈438000 [2]黄冈市生态环境局英山县分局,湖北黄冈438700 [3]湖北省生态环境监测中心站,武汉430000

出　　处：《中国资源综合利用》2023年第9期146-148,共3页China Resources Comprehensive Utilization

摘　　要：2015年春季,汉江下游潜江至武汉段发生硅藻水华现象。监测结果表明,本次水华为轻度硅藻水华,优势种为小环藻,共持续10 d。其间,汉江流量明显高于历史水华年份,因此水文条件不是本次水华的主要原因。研究表明,异常高的气温条件是水华的重要诱发因素。水利工程的兴建可以降低水华发生率,但汉江中游亦存在暴发水华的可能,仍需要加强研究和监测。In the spring of 2015,diatom blooms occurred in the Qianjiang to Wuhan section of the lower Hanjiang River.The monitoring results indicate that this water bloom is mild diatom bloom,with the dominant species being cyclotella,lasting for a total of 10 days.During this period,the flow of the Hanjiang River was significantly higher than in historical water bloom years,so hydrological conditions were not the main cause of this water bloom.Research has shown that abnormally high temperature conditions are important inducing factors for water blooms.The construction of water conservancy projects can reduce the incidence of water blooms,but there is also a possibility of outbreaks of water blooms in the middle Hanjiang River,and research and monitoring still need to be strengthened.

关 键 词：汉江 硅藻水华 影响因素 水文条件 气温条件 

分 类 号：X52[环境科学与工程—环境工程]