Soils 2.2 and 2.3

Question 1

• the portion of rainfall that makes its way toward stream channels, lakes, or oceans as surface or subsurface flow.
• also refers to overland or surface flow

Answer 1

The Runoff Process

Question 2

Factors (demands) to be satisfied before run-off can occur:

Answer 2

• Evaporation
• Infiltration
• Interception
• Surface Storage
• Surface detention
• Channel

Question 3

Factors Affecting Runoff (Schwab et al, 1993)

Answer 3

1. Precipitation
2. Watershed
3. Topographic features
4. Vegetation and management practices
5. Other factors (dams, levees, bridges)

Question 4

includes rainfall its characteristic duration, intensity,and distribution
(Automatic Weather Station (AWS).

Answer 4

Precipitation

Question 5

True or False: Total runoff is directly related to the duration of a storm for a given intensity

Answer 5

True

Question 6

True or False: Infiltration will decrease with time thus, a storm of short duration may produce no runoff

Answer 6

True