1, the modern river bed sandbar and the new beach plain
2, alluvial plains
3, clay silt plains
4, estuary delta plain
5, the lake a river accumulation plain
6, red terraces and hillock
7, red gravel terraces and post
8, red soil gravel covered terrace terrace terrace
9, erosion hills
10, the erosion of low mountains
11, karst low mountain
12, erosion of Zhongshan
13, Karst of Zhongshan
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