Slopes

Question 1

What is hillside relief?

Answer 1

Hillslope relief is the decrease in elevation between mountain summits and the point where channels begin.

Question 2

What is tributary channel relief?

Answer 2

Tributary relief

is the elevation decrease along the tributaries

Question 3

What is trunk relief?

Answer 3

Trunk channel relief is the decrease from the highest tributary to the end of the channel.

Question 4

Steep channels are cause by?

Answer 4

In steep, wet terrain, stream power overcomes resistance to erosion. Bedrock hardness becomes the principal factor in resistance to erosion

Question 5

When is stream power and resistance to erosion are in balance?

Answer 5

Where slopes are gentler, sediment begins to be deposited

Question 6

When the resistance to erosion is higher than stream power?

Answer 6

Where slopes are much flatter, the stream bed builds up and fills the valley with sediment.