摘要
从太湖选取水芹、石菖蒲、水葫芦、大薸、浮萍、荇菜、金鱼藻、黑藻、苦草、马来眼子菜作为研究对象,于2012年7月下旬开始在温室中利用水培法研究其对富营养化水体中氮磷的去除能力。试验结果表明,所选择的10种水生植物对污染水体均具有很好的净化效果且生长状况良好,其中水芹对总氮去除率最高,为91.50%,苦草对总磷的去除效果最好,去除率达94.20%。综合分析得出水生植物对水体氮、磷具有较强的吸收富集能力,总氮和总磷平均去除率均达到70%以上。
Hydroponic experiments were designed to investigate removal effect on nitrogen and phosphorus in eutrophic water with ten hydrophytes in late July 2012, including Oenanthe javanica, Acorus gramineus, Eichhornia crassipes, Pistia stra- tiotes, Lemna minor, Limnanthemun nymphoides, Ceratophyllum demersum, Hydrilla verticiUata, Vallisneria natans, Pota- mogeton malainus. Resuhs indicated that all of the ten species grew well in the constructed wetlands, and showed excellent nitrogen and phosphorus removal capacities. Among the ten hydrophytes, Oenanthe javanica had the best TN removal ca- pacities, increased the average TN removal rates by 91.5 %. Vallisneria natans had the best TP removal capacities, mak- ing the removal rate by 94.2%. Comprehensive analysis of aquatic plants had a strong uptake of nitrogen and phosphorus and water purification capacity. The average nitrogen and phosphorus removal rate reached more than 70% respectively. Key words： hydrophytes ; eutrophication ; biomass ; total phosphorus ; total nitrogen
出处
《林业科技开发》
北大核心
2013年第3期72-75,共4页
China Forestry Science and Technology
基金
江苏省水利厅资助项目(编号:013010095)
关键词
水生植物
富营养化
生物量
总磷
总氮
College of Forest Resources and Environment, Nanjing 210037, China
作者简介
刘燕（1988-），女，硕士生，研究方向为流域综合治理。
通讯作者：万福绪，男，教授。E-mail：Fxwan@r,jfu．edu．cn
