What method is used to prevent gullies from becoming larger by adding rocks and other materials?

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Study for the IGCSE Geography Agricultural Systems Test. Utilize flashcards and tackle multiple-choice questions that come with hints and detailed explanations. Get set for your exam with confidence!

Multiple Choice

What method is used to prevent gullies from becoming larger by adding rocks and other materials?

Explanation:
Gully revetments are used to stop gullies from getting bigger by stabilising the channel with rock armour or similar materials along the sides and bed. This armour absorbs the energy of the flowing water, protects the gully sides from further erosion, and traps sediment so the channel becomes more stable over time. Filling gullies might block the hollow, but it doesn’t address ongoing runoff in a durable way and can cause drainage problems, so revetments offer a longer-lasting solution to prevent enlargement.

Gully revetments are used to stop gullies from getting bigger by stabilising the channel with rock armour or similar materials along the sides and bed. This armour absorbs the energy of the flowing water, protects the gully sides from further erosion, and traps sediment so the channel becomes more stable over time. Filling gullies might block the hollow, but it doesn’t address ongoing runoff in a durable way and can cause drainage problems, so revetments offer a longer-lasting solution to prevent enlargement.

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