Question

Identify the land capability classes suitable for cultivation.

• A. III, IV, V
• B. IV, V, I
• C. VII, VIII, IV
• D. II, III, IV

Hint:

Remember the cutoff:
Classes I to IV are arable (suitable for cultivation).
Classes V to VIII are non-arable (unsuitable for cultivation, best for pasture and forestry).

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
Land capability classification (developed by the USDA) groups soils based on their capability to produce common cultivated crops without soil degradation.
The classification system consists of eight classes (numbered I to VIII), where soil limitations and erosion hazards increase as the class number increases.

Step 2: Detailed Explanation:
The eight land capability classes are split into two main groups:
1.Classes Suitable for Cultivation (Classes I to IV):
Class I has very few limitations and is highly suitable for intensive cultivation.
Class II has moderate limitations, requiring simple conservation practices.
Class III has severe limitations, requiring special soil conservation measures.
Class IV has very severe limitations, suitable only for occasional or limited cultivation with intensive management.
All of these classes are classified as arable land.
2.Classes Unsuitable for Cultivation (Classes V to VIII):
These soils have severe permanent limitations (such as extreme steepness, wetness, stoniness, or shallow depth) that make them unsuitable for field crop cultivation.
They are restricted to pasture, forestry, grazing, or wildlife conservation.
Looking at the options:
Option (A) contains Class V, which is non-arable.
Option (B) contains Class V, which is non-arable.
Option (C) contains Classes VII and VIII, which are highly restricted non-arable classes.
Option (D) contains Classes II, III, and IV, all of which are suitable for cultivation.

Step 3: Final Answer:
The land capability classes suitable for cultivation are II, III, and IV.