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3.4.3 Tertiary Salinity

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Tertiary salinity is also called irrigated salinity. It is characterised by the rise in the local groundwater level due to repetitive irrigation with large quantities of water over many cycles. This process can add some salts to the soil profile, which may also be mobilised into the groundwater. Each successive irrigation or reuse of saline groundwater keeps adding more salts to the groundwater, which progressively becomes more saline, resulting in higher levels of salinity over several cycles (Zaman et al. 2018). It gets even worse when irrigating from poor quality water or saltwater.

Groundwater Geochemistry

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