The four ways of water movement...
under a micro irrigation point source are volume & time dependent:
- ) Ponding: as the instant emitted flow increases over the infiltration rate capacity of the soil, a bigger pond develops below the source.
2) Saturated core: configured if water drips during a sufficiently long period of time.
3) Vertical percolation: quick movement by gravity action.
4) Diffusion: by means of capillarity, water moves in all directions in relation with hydraulic conductivity of soil.