ABSTRACT
Infiltration is the process of water penetrating the upper layers of the soil and the vertical flow of this water into the soil and subsoil under the force of atmospheric pressure and gravity. Percolation is the vertical movement of water deep into the soil towards the water table or phreatic layer. The rate of infiltration is represented by the
volume of water that infiltrates per unit of time [mm/h or m3/s]. Infiltration is essential to renewing the stock of water in the soil, recharging underground rivers and replenishing underground aquifers. In addition, the process reduces the amount of water that flows as surface runoff.
