Question

why the lower horizons of arid soil are occupied by kankar

Answer 1

Due to the dry climate, high temperature, evaporation is faster and the soil lacks humus and moisture . The lower horizons of the soil are occupied by Kankar because of the increasing calcium continent downwards. The Kankar layer formations in the bottom horizons restrict the infiltration of water.

Answer 2

Answer:

• The lower horizons of the soil are occupied by 'Kankar' layers due to the downward increase in calcium content. It limits water infiltration and when irrigation is available, soil moisture is readily available for  sustainable plant growth. laminated calcium carbonate, often nodular, formed in soils of semiarid regions.
• The lower horizons of  the soil are occupied by Kankar as a result of the downward ascent of the calcareous continent. Due to the dry climate, the high temperature, evaporation is faster and the soil lacks humus and moisture.
• After proper irrigation, these soils become arable, as was the case in western Rajasthan. Kankar strata formations in the lower horizons limit water infiltration.

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