Conservation and Restoration of Aquatic Plants with Bed Erosion in Brackish Water Zone

本文讨论了波浪作用对大叶藻建植的影响。大叶藻是一种主要生长在沿海的微咸水沉水植物。作用在Z.利用小型双分量测力传感器在波浪水槽底床下测量了日本的波浪。波浪力太小，无法将Z拉出来。从底层沉积物中萌发出的枝条。还观察了波浪作用下的沉积物输运和床面形态发育情况，Z。在波浪水槽中，当沙床出现较大的波纹时，从水槽的沙床中拔出一根日本嫩枝，通过室内试验研究了红树林和树木作为海岸防护的透波和反射波能力。用测压元件测量了小尺度明渠水流中活松树的阻力。还测量了圆柱在急流中的阻力。应用连续性方程和能量方程对树木排间的水流进行了理论分析，以评估海岸红树林和树木对波浪的透射和反射能力。估计了大而密的红树林的显著波反射。

The effect of wave action on the establishment of Zostera japonica, a brackish submerged macrophyte growing mainly in coastal areas, is discussed. The wave forces acting on Z. japonica were measured by using a small two components load cell installed under the bed of wave flume. The wave forces were too small to pull out Z. japonica shoot from bottom sediment. Sediment transport and bed form development under waves were also observed, and Z. japonica shoot was pulled out from the sand bed of flume when large ripples appeared on the sand bed in wave flume.Laboratory experiments were performed to study wave transmission and wave reflection capacity of mangroves and trees as coastal protection from waves. Drag forces on a live pine in small scale open channel flow were measured by using a load cell. Drag forces on a circular cylinder in rapid flow were also measured. A theoretical analysis based on application of the continuity and energy equations to flow through the rows of trees were made to evaluate wave transmission and wave reflection capacity of mangroves and trees in coastal area. The significant wave reflection from mangroves with large and dense canopy was estimated.