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(一) 黄河下游自孟津至高村在目前情况下屬于所謂游蕩性河流。其特点为:水流湍急,河身寬淺,沙灘密布,汊道縱横,河床变形剧烈,主流摆动不定。当黄河下游一系列枢紐修成以后,樞紐间的自由段是继續游蕩,抑或有所改变,对国民經济將有重大影响。这种影响,从规划整治河道的角度着眼,主要表現在如下兩个方面:
(A) The Lower Yellow River from Mengjin to Gaocun belong to the so-called wandering rivers in the current situation. Its characteristics are: fast-flowing, river body is shallow, sandy beach, vertical and horizontal roadway, riverbed deformation violently, the mainstream swinging. After a series of hinges of the lower reaches of the Yellow River have been completed, the free passage between the hubs will continue to loosen or change, which will have a significant impact on the national economy. This impact, from the perspective of planning and regulation of the river, mainly in the following two aspects: