Factors Affecting Drainage Basins

How does vegetation affect river discharge?

Vegetation increases interception and reduces runoff.

How does deforestation affect river discharge?

It increases surface runoff and flood risk.

How does urbanisation affect infiltration?

It reduces infiltration due to impermeable surfaces.

How does urbanisation affect runoff?

It increases runoff.

How does soil type affect infiltration?

Permeable soils allow more infiltration.

How does geology affect drainage basins?

Permeable rocks increase groundwater storage.

What is a permeable rock?

A rock that allows water to pass through it.

What is an impermeable rock?

A rock that does not allow water to pass through it.

How does rainfall intensity affect runoff?

Higher intensity usually increases runoff.

How does slope angle affect runoff?

Steeper slopes increase runoff speed.

How does temperature affect evaporation?

Higher temperatures increase evaporation.

Why does climate influence drainage basins?

It controls precipitation and evaporation rates.