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我国是河流众多的国家,河流总长43万余公里,且水量充沛,冬季不封冻,是发展水运的有利条件。 在50年代到60年代初,我国曾大力开发并整治了一些主要河流,使全国内河通航里程由1949年的74,000公里,增加到1962年的172,000公里。但是,60年代后期到1979年,全国内河通航里程却锐减到107,800公里,即减少37.3％。华北平原和黄河流域已无全年能通航的水道(冰冻期除外);在南方水运交通比较发达的省份也在大幅度下降,通航水道越来越短,水深越来越浅,通航条件越
China is a country with many rivers. The total length of the river is 430,000 kilometers and the water is plentiful. The winter is not frozen, which is a favorable condition for the development of water transport. From the 1950s to the early 1960s, China has vigorously developed and rehabilitated some major rivers, increasing the total number of inland river navigation routes from 74,000 kilometers in 1949 to 172,000 kilometers in 1962. However, from the late 1960s to 1979, the national mileage of inland river navigation dropped sharply to 107,800 km, or a decrease of 37.3%. The North China Plain and the Yellow River Basin have no annual navigable waterways (except for the freezing period); the provinces where the water transport in the south is relatively developed have also dropped sharply; the navigable watercourses have become shorter and shorter; the water depths have become increasingly shallow;