Salinization is a major problem associated with irrigation, because deposits of salts build up in the soil and can reach levels that are harmful to crops. In addition, the salts can make ground water, which may be in use for drinking, saltier and unsuitable for drinking.
Why is salinization a concern?
Salinization is a resource concern because excess salts hinder the growth of crops by limiting their ability to take up water. Salinization may occur naturally or because of conditions resulting from management practices.
What are 2 causes of salinization?
Soil salinization causes include:
- dry climates and low precipitations when excessive salts are not flushed from the earth;
- high evaporation rate, which adds salts to the ground surface;
- poor drainage or waterlogging when salts are not washed due to a lack of water transportation;