|Better Farming Series 28 - Water: Where Water Comes from (FAO, 1981, 31 p.)|
|Water on the surface|
93. When it rains, water which does not sink into the ground runs over the surface into low land.
94. When there is very much rain, more water runs over the surface and low land quickly fills with water. This can be seen during wet seasons in swamps, lakes and streams.
95. The effect of run- off on surface water is easy to see for it happens very quickly.
The effect is easy to see