Em4885 irrigation management practices to protect ground water
Em4885 irrigation management practices to protect ground water
Em4885 irrigation management practices to protect ground water
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3 CHAPTER<br />
5. Percolation - movement of <strong>water</strong> through the soil.<br />
6. Freezing - liquid <strong>water</strong> turning in<strong>to</strong> ice.<br />
7. Thawing - melting of ice.<br />
8. Transpiration - movement of <strong>water</strong> vapor within a plant through the leaves<br />
in<strong>to</strong> the atmosphere.<br />
Infiltration<br />
<br />
<br />
<br />
Soil<br />
<br />
Water<br />
<br />
Table<br />
<br />
<br />
Oceans<br />
and<br />
other <strong>water</strong><br />
bodies<br />
<br />
<br />
<br />
Percolation<br />
FIGURE 3-2. Schematic diagram of the hydrologic cycle<br />
A term that is constantly used by agriculturalists is “evapotranspiration.” Evapotranspiration is<br />
the <strong>to</strong>tal extraction of <strong>water</strong> from the soil when cropped. It consists of direct evaporation from soil<br />
surface and transpiration from the plant surface.<br />
10<br />
EVAPORATION<br />
Cloud forming<br />
TRANSPIRATION<br />
Ground <strong>water</strong><br />
EVAPORATION
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