知识与财富的链接
利用多波束测深及数字高程模型技术发现:南港主槽有若干长50～100m,深3～5m的采砂坑;瑞丰沙体南侧存在高0.5～1.2m,长约1800m的两级陡坎,陡坎下有长1850m、宽400m、体积124.5万立方米的滑坡体.近8年来,瑞丰沙冲刷减少3724万立方米.采砂坑、陡坎与滑坡体形成的主要受采砂及其引起的瑞丰沙顶部水沙...
According to the bed-form data measured by multi-beam echo-sounding system(MBES) and digital elevation model(DEM),this parer is to examine the impacts of pumping-sand on the river bed-form evolution of the Nangang Channel in the Changjiang River mouth.The results is that there were 5 huge sandpits with 50-100m long and 3-5m depth,2 ranges steep ridge with 1800m long and 0.5-1.2m high and 1 huge landslide with 1850m long and 400m wide in Ruifeng shoal edge nearly sandpits in the Nangang Channel,and the volum...
