1-River and river landform

A general term of natural running water inside linear grooves on the earth’s surface. It has different names like Jiang, He, Chuan, Xi, Jian, Zangbu, Guole, etc. in China

Water in the river goes through erosion, transportation and sedimentation, and forms into valley, flood plain, alluvial fan, delta and other landforms, etc. which are collectively referred to as river landform.