Surface runoff can be influenced by:
vegetation: plant roots intercepts and traps running water
vegetation density- tree branches and leaves can intercept and trap falling water lessening it from reaching the surface as runoff.
surface permeability - porous soils allow water to sink down reducing runoff
typography- flat surfaces encourage infiltration instead of runoff
Soil saturation - if the soil is already saturated water will not infiltrate further but runs off on the surface (saturation overland flow)
Human Activities
Impervious surfaces e.g concrete pavements promotes runoff
Buildings traps water reducing the amount reaching the surface
Surface runoff can be influenced by:
vegetation: plant roots intercepts and traps running water
vegetation density- tree branches and leaves can intercept and trap falling water lessening it from reaching the surface as runoff.
surface permeability - porous soils allow water to sink down reducing runoff
typography- flat surfaces encourage infiltration instead of runoff
Soil saturation - if the soil is already saturated water will not infiltrate further but runs off on the surface (saturation overland flow)
Human Activities
Impervious surfaces e.g concrete pavements promotes runoff
Buildings traps water reducing the amount reaching the surface