Question

Which state is having largest area under salt affected soils ?

• A. Rajasthan
• B. Gujarat
• C. Uttar Pradesh
• D. Maharashtra

Hint:

Gujarat's vast coastal line and the unique geography of the Rann of Kutch make it the state with the highest salinity-affected land area in India, surpassing inland alkali-affected states like Uttar Pradesh.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Salt-affected soils contain high concentrations of soluble salts or exchangeable sodium, which limits plant growth and agricultural productivity.
These soils are classified into saline, sodic, and saline-sodic soils based on their chemical properties.
Detailed Explanation:
According to databases from the ICAR-Central Soil Salinity Research Institute (CSSRI), the total area of salt-affected soils in India is estimated at over 6.7 million hectares.
- Gujarat has the largest total area of salt-affected soils (approximately 2.23 million hectares).
This is primarily due to extensive coastal salinity in the Rann of Kutch and inland salinity in its arid and semi-arid regions.
- Uttar Pradesh has the second-largest area, dominated primarily by sodic (alkali) soils in the Indo-Gangetic plains.
- Rajasthan also has significant saline areas due to high evaporation rates and saline groundwater in its desert regions.
- Maharashtra has localized salinity issues, primarily in irrigated black cotton soil zones.

Step 2: Final Answer:
Gujarat has the largest area of salt-affected soils in India.