摘要
菹草(Potamogeton crispus)、轮叶狐尾藻(Myriophyllum verticillatum)和灯笼草(轮藻属(Chara)的一种)是衡水湖中生物量较大的3种沉水植物。经过采集培养并研究了这3种沉水植物对水中溶解氧含量、硝态氮含量及光密度和电导率的影响,结合实地调查,推测灯笼草的存在可能是造成近几年七八月衡水湖鸟区等游览区出现臭味和鱼苗死亡的原因,初步确定了灯笼草为造成湖水污染的沉水植物。
It was found that Myriophyllum verticillatum,Potamogeton crispus,Chara sp.were the main submerged macrophytes in Hengshui Lake.The effects of three submerged macrophytes on the dissolved oxygen content,nitrate nitrogen content,optical density and conductivity of water were studied.Combining with field survey,the results showed that the odors and died fish larvae in the sightseeing areas from July to August were caused by Chara sp.,that was to say,Chara sp.polluted the lake water.
出处
《河北农业科学》
2010年第10期110-112,共3页
Journal of Hebei Agricultural Sciences
基金
河北省科技厅科技攻关指导计划项目(07276742)
衡水学院科研基金资助课题(2007年)
关键词
衡水湖
沉水植物
溶解氧含量
硝态氮含量
光密度
电导率
Hengshui Lake
Submerged macrophytes
Dissolved oxygen content
Nitrate nitrogen content
Optical density
Conductivity
