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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.
Hydrological and meteorological data of Donggang Lake were surveyed, soil samples were taken from the bank of the lake, and the roots of Vetiver grass were investigated. On the basis of this, erosion resistance formulas were used to calculate bare soil and three kinds of vetiver planting The results show that the erosion rate of wind-induced waves to the bare soil slope in Donggang Lake is 6.72 mm / h.The erosion rate of the shore with different vetiver protection schemes is decreased by 69.18% ~ 92.36%. The larger the area ratio of root and soil, the smaller the erosion rate of the wind and waves on the slope. The reasonable vetiver protection can effectively resist the erosion of the shore.