The restraint of geologic structure of river bed and bank on the rivers geologic action controls the river evolution trend.
河床河岸地质结构对河流地质作用的制约主导着河道演变的趋势。
This paper presents the river course evolution of Yilan to Jiamusi reach through analyzing evoluting reason and river bed formation.
通过对河道演变原因及河床形态的分析，得出松花江依兰—佳木斯江段河道演变的特点。
Its shown that the flow structure in the dam area are basically corresponding with the bed configuration after evolution of the river situation.
研究表明，坝区水流结构与河势演变后形成的河床形态基本相对应。
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