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黑龙江省是我国国境界河最长、演变最复杂的界河大省,国境线长度为3 038公里,其中水界长度为2 790公里,占国境线总长的91.8％。近年来,该省界河江道演变程度加剧,情况十分复杂,影响着各条河流的河势稳定,造成江岸冲刷及塌岸破坏严重。从界河江道破坏的类型分析,主要有冲刷及塌岸、低滩切割和汉道岛屿主流变动3种。
Heilongjiang Province, the longest and most evolving boundary river in our country, has a total length of 3,038 kilometers, of which 2790 kilometers are water borders, accounting for 91.8% of the total border. In recent years, the evolution of Hejian Road in the province has been exacerbated. The situation is very complicated, affecting the stability of rivers in various rivers and causing serious erosion and river bank collapse. From the analysis of the type of destruction of the river, there are three main types of erosion and bank collapse, low beach cutting and the mainstream change of the Han dao island.