珠江三角洲的整治问题中,河道整治是一个极其重要的组成部分,而河道整治,又首先要对河道冲淤特性有个充分的认识,因此,分析三角洲的河道冲淤特性,是三角洲整治规划中一个极为重要的研究课题。珠江三角洲是由西江、北江及东江等多河流共同建造的复合三角洲, River regulation in the Pearl River Delta, the river regulation is an extremely important part of the river regulation, and first of all have to have a full understanding of the river scour and silting characteristics, therefore, the analysis of river delta erosion and sedimentation characteristics of the delta plan A very important research topic. The Pearl River Delta is a composite delta built by many rivers, such as the Xijiang River, the Beijiang River and the Dongjiang River.