外秦淮河生态护坡挺水植物适应性试验研究

针对外秦淮河的污染状况，采用挺水植物菖蒲和狭叶香蒲进行试验，对外秦淮河的污染水质进行净化；同时进行两种挺水植物在外秦淮河当前水质下的耐淹没性试验。通过试验研究得出，在深秋季节，虽然菖蒲和狭叶香蒲两种植物已经处于生长周期的最后阶段，但是对外秦淮河污染水质仍然有较好的净化效果，对TP、TN、氨氮等的去除率能达到80％以上，对CODMn的去除率偏低。而且通过净化和耐淹试验中两种植物的对比．菖蒲比狭叶香蒲更能适应外秦淮河的水质状况。

Research on the Adaptability of Submerged Macrophytes Used by Ecological Riverbank in Qinhuai River

Based on the polluted status of the Qinhual River, calamus and narrow leaf bulrush axe used to clean the Qinhuai River water. And their abilities of submergence tolerance are tested. In the research, both of the plantes can clean the polluted river water in deep autumn, the rates of removeing TP, TN and NH3 - N from the river water are exceed 80%, but it is low of CODMn. Compared both of the plantes, calamus is more adapt than narrow leaf bulrush to the Qinhuai river water status.