Make Predictions

Question

Using what you have learned about stream competence and capacity, use the questions below to make some predictions

Suppose a stream has a low volume but a steep gradient. How might the stream change the land? Provide your reasoning.

Answer 1

Based on the given information, a stream with a low volume but a steep gradient is likely to have high stream competence. Stream competence refers to the ability of a stream to transport sediment particles based on their size and weight.

With a high stream competence, the stream would have the power to transport and erode larger and heavier sediment particles from the land. As the stream flows downhill with a steep gradient, it gains momentum and energy, allowing it to pick up and carry larger rocks, soil particles, and debris.

Therefore, the stream would likely change the land by eroding and removing larger sediment particles, leading to the formation of deeper and wider channels or valleys. The high stream competence would result in the formation of steep slopes and cliffs where the stream flows. Over time, the continuous erosion caused by the stream's flow would shape the landscape, creating a more rugged and V-shaped valley.

In summary, a stream with a low volume but a steep gradient is likely to have high stream competence, leading to increased erosional power and the ability to reshape the land by removing and transporting larger sediment particles.