辽河平原,是位于辽宁省境内的冲积平原。该平原夹于辽宁省东西部丘陵之间,南至辽东湾。是由其境内的辽河下游泥沙冲积而成。

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辽宁省中部的辽河平原。

该平原地势地平,北高南低,海拔一般低于50米,辽河入海口处海拔在10米以下。平原上河流众多,水流较缓,沙洲密布,港汊纵横。因沉降堆积旺盛,平原上河床较高,分布有较多沼泽,汛期常影响排涝。泥沙淤积也使得辽河平原逐渐向辽东湾发展。[1]

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