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  • Which element is responsible for causing soil salinity? At what concentration does the soil become saline?

Which element is responsible for causing soil salinity? At what concentration does the soil become saline?

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Minerals are responsible for causing soil salinity. Following are some of the cause for the increase in soil salinity:

High level of salt in the soil.

Water table movement because of landscape features.

Human activities; like clearing of land and excess use of synthetic fertilizers.

Salt runoff from streets can happen in cold climates because salt is applied on the road to prevent snow accumulation.

Measurement of Soil salinity: Soil salinity is measured in terms of a gram per litre of soil solution or electrical conductivity in dS/m. Soil salinity is usually determined from an extract of the saturated paste of soil, and then EC is termed as ECe. When 4 < ECe < 8, the soil is termed as slightly saline. When 8 < ECe < 16, the soil is termed as moderately saline. When ECe > 16, the soil is termed as highly saline. 

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