摘要
为更好地了解北京城市河湖沉水植物情况,解决因沉水植物管控不到位、收割不及时引发的水环境问题,以北京城市河湖沉水植物生长旺盛的9段景观河道作为研究区域,将研究区各采样断面的情况进行汇总分析,选择出现频率最高、收割量最多的沉水植物作为优势种,对沉水植物的种类、季节变化规律及水质净化效果进行了分析。研究区沉水植物春季优势种群为菹草、狐尾藻和篦齿眼子菜,夏季为金鱼藻、狐尾藻及篦齿眼子菜等;沉水植物对降低研究区水体营养盐指标、净化城市河湖水质发挥着重要的作用。研究成果可为研究区沉水植物科学管控和治理提供理论和方法上的支撑。
To better understand the situation of submerged plants in urban rivers and lakes in Beijing,and to solve the water environment problems caused by poor control of submerged plants and untimely harvesting,this paper used nine landscape rivers in urban rivers and lakes in Beijing where submerged plants grow vigorously as the study area.It summarized and analyzed the situation of each sampling section in the study area,selected the most frequent and harvested sediment plants as the dominant species,and analyzed the species of sediment plants,seasonal change patterns and water purification effects.The results showed that the dominant populations of submerged plants in the study area were miner's tongue,foxtail algae and grate eyedrops in spring,and goldfish algae,foxtail algae and grate eyedrops in summer.In addition,submerged plants play an important role in reducing the nutrient index of water bodies in the study area and purifying the water quality of urban rivers and lakes.The research results can provide theoretical and methodological support for the scientific control and management of submerged plants in the study area.
作者
苏涛
何沛洋
张琳娜
龚应安
李庆
李岱
SU Tao;HE Peiyang;ZHANG Linna;GONG Yingan;LI Qing;LI Dai(Beijing Urban Rivers and Lakes Management Division,Beijing 100143,China;Beijing Water Science and Technology Institute,Beijing 100048,China)
出处
《北京水务》
2023年第3期39-42,共4页
Beijing Water
关键词
北京
城市河湖
沉水植物
科学管控
Beijing
urban rivers and lakes
submerged plants
scientific control
