Explain why earthworms are so beneficial for the soil in our gardens.

In short (click here for detailed version)

Earthworms are beneficial for the soil in our gardens as they aerate the soil by digging tunnels, promote the mixing of different soil layers, and break down organic matter into essential nutrients for plants.

Explain why earthworms are so beneficial for the soil in our gardens.
In detail, for those interested!

Increase in soil fertility

Earthworms contribute to the increase in soil fertility by promoting the decomposition of organic matter. Their activities of digging and ingestion help to break down plant debris, dead leaves, and other organic matter present in the soil. By digesting these materials, earthworms transform them into humus, a component rich in essential nutrients for plants. Humus improves soil structure and promotes water retention, helping plants to grow and thrive. Thanks to this action, earthworms contribute to maintaining a biological balance in the soil, promoting the growth of crops and the overall health of the garden ecosystem.

Soil structure improvement

Earthworms contribute to improving soil structure by naturally aerating it through their movements and promoting the mixing of different layers of soil. Their burrows help to decompact the soil and facilitate deep root penetration for plants. By stirring the soil, earthworms also promote the circulation of water and nutrients in the soil, which is essential for plant development. Thanks to their actions, the soil structure becomes more stable and conducive to crop growth. Earthworms thus help create a favorable environment for microbial life and plant development in our gardens.

Increased air and water circulation in the soil.

The presence of earthworms in the soil promotes increased air and water circulation. By digging tunnels, earthworms allow for better soil aeration, thus promoting the development of beneficial microorganisms. These tunnels also facilitate the infiltration of rainwater into the soil, thereby reducing runoff and erosion. Furthermore, the passages created by earthworms allow for better water retention in the soil, limiting the risk of flooding during heavy rains. By improving soil porosity, earthworms contribute to better water regulation, promoting plant growth and overall health of the underground ecosystem.

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Frequently Asked Questions (FAQ)

1

How do earthworms contribute to soil aeration?

Earthworms dig tunnels in the soil, thereby promoting air circulation.

2

How do earthworm excrements enrich the soil?

The excrement of earthworms, also known as vermicompost, is rich in beneficial nutrients for plants.

3

What is the role of earthworms in the decomposition of organic matter?

Earthworms feed on organic debris and therefore contribute to speeding up the decomposition process.

4

How do earthworms improve water retention in the soil?

The galleries created by earthworms allow water to infiltrate the soil more effectively and be stored.

5

Why are earthworms considered soil engineers?

Earthworms modify the soil structure by making it more aerated, fertile, and conducive to plant growth.

Animals and Nature : Biodiversity

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