东港湖岸种植香根草抵抗波浪侵蚀的效应研究

发布时间：2018-04-11 07:17

  本文选题：湖岸 + 波浪侵蚀　； 参考：《武汉大学学报(工学版)》2017年04期

【摘要】：对东港湖水文气象资料进行调查,取湖泊岸坡土样进行土工试验,并对香根草进行根系调查,在此基础上运用抗冲蚀经验公式分别计算出裸岸及3种香根草种植方案条件下湖岸的侵蚀速率.研究结果表明,风浪对东港湖裸土岸坡的冲蚀速率为6.72 mm/h.不同香根草护岸方案下湖岸侵蚀速率较之于裸土岸坡减少69.18%~92.36%,根土面积比越大,风浪对岸坡的冲蚀速率越小,合理的香根草护岸能够有效地抵抗波浪对湖岸的侵蚀.
[Abstract]:The hydrometeorological data of Donggang Lake were investigated, the soil samples from the slope of the lake were tested, and the root system of Vetiver was investigated.On the basis of this, the erosion rate of the lake bank under the condition of bare bank and three kinds of Vetiver planting schemes were calculated by using the empirical formula of erosion resistance.The results show that the erosion rate of the bare soil slope of Donggang Lake is 6.72 mm / h.Compared with bare soil slope, the erosion rate of lake bank is reduced by 69.18% and 92.36% under different vetiver revetment schemes. The larger the ratio of root to soil area is, the smaller the erosion rate of wind wave is to bank slope, and the reasonable revetment of vetiver grass can effectively resist the erosion of lake shore caused by wave.
【作者单位】： 武汉大学水资源与水电工程科学国家重点实验室;
【分类号】：TV139.2
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本文编号：1734975