布袋莲

本研究利用渠槽试验求得渠槽内覆盖布袋莲之曼宁系数，并利用HEC-RAS模式分析本试验渠槽内覆盖布袋莲对渠槽上游水位抬升之情况。

In this paper , the Manning coefficients of channels covered with Eichhornia Crassipes were determined by model test .

布袋莲对渠槽曼宁系数之影响

Effect of Eichhornia Crassipes on Manning coefficient in open channel

本试验所求得覆盖布袋莲之渠槽曼宁系数随着流速改变，流速范围在0.76～11.65cm/s时其曼宁系数为0.026～0.416，而平均值为0.098。

It was found that the Manning coefficient varies with the flow velocity and the average value is 0.098 when flow velocity is in the range of 0.76cm/s to 11.65cm/s .

利用布袋莲代替稻草来栽培草菇，菌丝发育良好，产菇正常。

Water hyacinth ( Eichhornia crassipes Solms ) is used to substitute rice straw for the cultivation of padi straw mushroom .

不过布袋莲也能吸收污水中的化学废料，对环境保护有相当大贡献，是大自然重要的环保尖兵！

Not only the heavy metals , Water Hyacinth can also remove toxins , such as cyanide , a process which is environmentally beneficial in areas that have endured gold mining operations .