Finally, navigation has been seriously affected by the loss of waterways, raising the time and cost of water transport, vital in the Yangtze region.
圍湖和泥沙淤積，使通航里程減少三分之一。舉全長七十二公里的馬凌段河道（馬家吉出凌家灘至津市）為例，在一九五四年被堵起後，繞道而行，航程增加了一百零二公里，運輸的時間、成本提高了一．四倍。