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1·The content of TN obviously increased for the death of phragmites communis.

芦苇冬季死亡分解会造成底泥中总氮含量的增加。

2·The Phragmites communis community is landscape plant community and have wide distributions.

芦苇群落分布广泛，面积最大，是白洋淀的景观植物群落。

3·The growth state of rye grass sowwed in hongdao beach of dongting lake and its effect on controlling phragmites communis.

洞庭湖洪道洲滩种植黑麦草的生长状况及灭芦效果。