Sand Movement and Long-Term Beach Evolution in a Fluvial System Composed of the Samegawa River and the Nakoso Coast
Sand Movement and Long-Term Beach Evolution in a Fluvial System Composed of the Samegawa River and the Nakoso Coast
复制标题
鲛川和那古总海岸组成的河流系统中的沙运动和长期海滩演化
DOI：
10.1142/s057856340400104x
复制
发表时间：
2004
影响因子：
2.4
通讯作者：
M. Isobe
中科院分区：
文献类型：
--
作者：
Shinji Sato;T. Kajimura;M. Abé;M. Isobe
在经历了严重海滩侵蚀的砂目川和Nakoso海岸组成的河流系统中，进行了泥沙运动和海滩演变的现场调查。对系统中区域砂量的分析表明，海滩上近岸砂的减少速率与坝库中砂的积累速率具有相同的数量级。河口附近河床的疏浚也影响了附近海岸线的退缩。泥沙运动过程中的长期变化，估计从分布的矿物成分包括在沉积物样品收集在一个广泛的区域。
A field investigation on sediment movement and beach evolution was performed in a fluvial system composed of the Samegawa River and the Nakoso coast, which experienced significant beach erosion recently. Analyses of regional sand volume in the system revealed that the rate of decrease in nearshore sand on the beach is of the same order as the rate of accumulation of sand in dam reservoirs. Dredging of the riverbed near the river mouth also influenced nearby shoreline retreat. Long-term changes in sand movement processes were estimated from the distribution of mineral composition included in the sediment samples collected in a wide area.