gs1medium
Salinization occurs when the irrigation water accumulated in the soil evaporates, leaving behind salts and minerals. What are the effects of salinization on the irrigated land?
- A.It greatly increases the crop production
- B.It makes some soils impermeable
- C.It raises the water table
- D.It fills the air spaces in the soil with water
▶ Answer & Explanation
Correct answer: B. It makes some soils impermeable
Salinization leads to the accumulation of soluble salts in the soil, which can hinder plant growth and degrade soil structure. High salt concentrations can disrupt the osmotic balance, making it difficult for plants to absorb water, thus reducing crop yields. Furthermore, the deposition of salts can bind soil particles together, reducing pore space and water infiltration, leading to soil impermeability and increased surface runoff.
Source: UPSC gs1 2011