Fluvial Landforms in the Humid Tropics：練習題

• a.

  Sinuous channels with distinct river cliffs and point bars.

• b.

  Mid-channel bars consisting of active, unvegetated sediment.

• c.

  Subaqueous accumulations of sediment at the river mouth.

• d.

  Star-shaped depressions surrounded by cone-shaped hills.

• a.Mid-channel bar
• b.Prodelta
• c.Delta plain
• d.Point bar

• a.

  High rates of vertical incision, low width-to-depth ratios, and resistant bedrock.

• b.

  High sediment supply, significant fluctuations in discharge, and non-cohesive bank materials.

• c.

  Low bedload availability, stable discharge regimes, and high bank stability.

• d.

  Dominance of suspension load, constant baseflow, and dense riparian vegetation.

• a.

  Prodelta

• b.

  River cliff

• c.

  Point bar

• d.

  Delta plain

• a.

  It promotes the formation of a prodelta by transporting fine sediments offshore.

• b.

  It results in the vertical incision of the river bed, forming a deep V-shaped valley.

• c.

  It creates mid-channel bars by depositing bed load in the center of the stream.

• d.

  It causes erosion on the outer bank to form a river cliff and deposition on the inner bank to form a point bar.

先自己寫一次答案，再對照解題步驟。