The 1.03 curvature of the river channel in Zone D show the straight river channel pattern.
D河段以单一河型为主、分汊河型为次，平均曲率仅为1.03。
参考来源 - 长江中下游（武汉—河口）底床沙波型态及其动力机制·2,447,543篇论文数据，部分数据来源于NoteExpress
But many facts which influence the river channel pattern relationships are not considered, so this article analyzes only the simplified real rivers.
但由于很多影响河相关系和河型形成的其它因素没有考虑，因此本文只是对实际情况的简化分析。
Besides the extension length of sedimentation, the factors that effected the river course are channel pattern, process of water and sediment and dredging.
影响河口河道好坏的因素，除淤积延伸长度外，还应包括河槽形态、水沙过程、河口疏浚等。
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