 | Better Farming Series 28 - Water: Where Water Comes from (FAO, 1981, 31 p.) |
 |  | (introduction...) |
| | Preface |
|  | Why we study water |
| | (introduction...) |
| | Rainfall |
| | Water In the ground |
| | The water table |
| | Water on the surface |
| | Evaporation |
| | Transpiration |
| | The process begins again |
| | When rain falls |
| | (introduction...) |
| | How much rain falls |
| | Kind of soil |
| | Slope of the land |
| | Plants |
| | Water in the ground |
| | (introduction...) |
| | Water and the soil |
| | Water and the subsoil |
| | Water and parent rock |
| | Where to find water in the ground |
| | (introduction...) |
| | Wells |
| | Springs |
| | Water on the surface |
| | (introduction...) |
| | Groundwater can become surface water |
| | Surface water run- off |
| | Where to find surface water |
| | (introduction...) |
| | Swamps, pond and lakes |
| | Streams and rivers |
Surface water run- off
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
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