Presence of Vegetation | Permeability of Rocks |
Size of Drainage Basin | Climate |
The presence of
vegetation affects the rate at which water
is intercepted and is able to infiltrate the ground. If an area is
covered with vegetation, the vegetation will intercept the rain and
allows some of it to infiltrate into the ground. As a result, there
will be less water as surface runoff into the river and so the
volume of water into the river will be lowered. On the other hand,
in an area with no vegetation, there will be no interception
and little infiltration into the ground. This will result in more
water as surface runoff into the river and so the volume of the
water is higher than that of a vegetated area.