Question

Following are four stages of gully development. Arrange these in order.
(A). Healing stage
(B). Development stage
(C). Stabilization stage
(D). Formation stage
Choose the correct answer from the options given below:

• A. (A), (B), (C), (D)
• B. (D), (B), (A), (C)
• C. (B), (A), (D), (C)
• D. (C), (B), (D), (A)

Hint:

Gully control measures, such as check dams and vegetation, are most effective when applied during the transition from the development to the healing stage.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Gully erosion is an advanced stage of water erosion where concentrated runoff cuts deep channels into the soil. This development occurs in distinct stages over time.

Step 2: Detailed Explanation:
Gullies progress through four main morphological stages:
Formation stage (D): Runoff scours topsoil and initiates headward cutting to establish a small channel.
Development stage (B): Rapid upstream cutting and widening occur as water erodes the channel floor.
Healing stage (A): Erosion slows, and pioneer vegetation begins to colonize the gully floor and sides.
Stabilization stage (C): Plant cover establishes, slopes reach a stable angle of repose, and soil erosion stops.
This sequence is represented by the order (D) $\rightarrow$ (B) $\rightarrow$ (A) $\rightarrow$ (C).

Step 3: Final Answer:
The correct sequence of gully development is (D), (B), (A), (C).