平原水库藻类生长特征及影响因素分析  

Analysis on Characteristics and Key Factors of Algae Growth in Plain Reservoir

作　　者：刘大伟 刘加召 房亚南 郭亚峰 刘素 徐征和 赵艳侠 许伟颖 LIU Dawei;LIU Jiazhao;FANG Yanan;GUO Yafeng;LIU Su;XU Zhenghe;ZHAO Yanxia;XU Weiying(Shandong Eighth Institute of Geology and Mineral Resources Exploration,Shandong Provincial Bureau of Geology and Mineral Resources,Rizhao 276826,Shandong,China;School of Water Conservancy and Environment,University of Jinan,Jinan 250022,Shandong,China;State Grid Liaocheng Power Supply Company,Liaocheng 252000,Shandong,China)

机构地区：[1]山东省地质矿产勘查开发局山东省第八地质矿产勘查院,山东日照276826 [2]济南大学水利与环境学院,山东济南250022 [3]国网山东省电力公司聊城供电公司,山东聊城252000

出　　处：《济南大学学报（自然科学版）》2024年第3期300-305,共6页Journal of University of Jinan(Science and Technology)

基　　金：国家自然科学基金项目(52270005);日照市重点研发计划项目(2021ZDYF010234);济南大学科技计划项目(XKY2205)。

摘　　要：为了研究平原水库的水质变化及其对藻类生长繁殖、种群结构变化的影响,以山东某平原水库为例,通过对水库不同采样点的水质指标、叶绿素a含量、藻类种群变化及水库营养状态的分析,综合评价水库水质状况,总结影响水库藻类生长的关键因素。结果表明,水库河流汇入区域及水流缓慢区易出现营养盐等污染物滞留、沉降和富集现象,存在总氮超标风险;各采样点均呈现富营养甚至重度富营养状态;河流入口及部分狭小库区水体的综合营养状态指数较大,叶绿素a含量也较高;水体中的浮游藻类主要为绿藻和硅藻,其生长繁殖受总磷影响显著,总磷是防止藻华发生的关键控制因素。To study the water quality change and its impact on algae growth,reproduction and population structure in a plain reservoir,a plain reservoir in Shandong Province was taken as an example to comprehensively evaluate the water quality of the reservoir and summarize the key factors affecting algae growth in the reservoir through the analysis of water quality indexes,chlorophyll a content,algal population changes and nutrient status of the reservoir at different sampling points.The results show that the retention,sedimentation and enrichment of nutrients and other pollutants are easy to occur in the area where the river flows into the reservoir and the area where the water flow is slow,and there is a risk of exceeding the total nitrogen.All sampling sites show eutrophication or even severe eutrophication.The comprehensive nutrient state index and chlorophyll a content of water in river inlet and some narrow reservoir areas are higher.Algae in the water are mainly green algae and diatoms,and their growth and reproduction are significantly affected by total phosphorus,which is a key control factor to prevent algal blooms.

关 键 词：水库 藻类生长 叶绿素A 总氮 总磷 

分 类 号：X524[环境科学与工程—环境工程]