Effects and Types of Vegetation Engineering | Major Methods for Preventing Surface Erosion and Protecting Natural Slopes

Hello, everyone.

This is Enta.

Do you know how effective vegetation engineering and vegetation mats are?

Vegetation Mat with Fertilizer Pouch

Although it’s not very popular these days, it’s no exaggeration to say that, in the past, vegetation was the primary means of slope protection.

🌾 The main construction methods are

  • Seed Sprayer

  • Soil Blowing Work

  • Vegetation Substrate Spraying Technician

  • Landscape Installer (seedlings, sod laying, etc.)

  • Vegetation Mat Installer

They’re generally categorized into the methods listed above.

🌱 Main Benefits of Vegetation Engineering

Effect Classification Contents
1. Prevention of Surface Erosion The leaves and stems of plants directly absorb rain and wind, thereby preventing the topsoil from being washed away. Since the roots hold the soil in place, erosion is less likely to occur.
2. Protection of the Earth Mountain By spreading into the soil, the root system stabilizes the soil structure and helps prevent slope failures (such as surface slippage). The development of fine roots is particularly important.
3. Rainwater Infiltration and Runoff Control Plants absorb rainwater and promote its infiltration into the soil, thereby reducing the force of surface runoff and lessening its erosive power.
4. Enhancing the Landscape Since it is landscaped with plants, it blends in with the surrounding scenery and enhances the visual appeal. It improves harmony with the natural environment.
5. Ecosystem Restoration By providing an environment conducive to wildlife, we promote the restoration and formation of ecosystems for insects, small animals, and other species. Nature conservation.
6. Sound Absorption and Dust Protection Dense vegetation helps absorb sound and reduce dust.

I guess this is just common knowledge in the slope engineering industry, but since we have new hires joining us, let’s all brush up on it, lol.

Vegetation Mats and Gullies

This shows the difference between areas where the vegetation mats have been installed and those where they have not.

There are no gullies where the mat is laid on the left. (You can't see them, lol.)

The right side has some really deep gullies, doesn't it?

A gully is commonly referred to as a form of erosion. For more details, see below ↓↓↓

✅ Definition and Characteristics of a Gully

Item Contents
Definition A naturally formed gully or valley-like landform created by the repeated erosion of soil and bedrock caused by rainfall and the flow of surface water.
Shape Deep, narrow V-shaped or U-shaped erosion gullies. They can sometimes reach depths of over 1 meter.
Causes MainlyConcentration of Surface RunoffLack of VegetationPoor DrainageSteep slopesRainwater runoff there.
Progressive Once it starts, erosion accelerates and expands and worsens year by year (it is self-perpetuating), soEarly action is essential

If a gully forms, the only way to restore this area is basically to bring in soil or fill it in using a vegetation substrate spray method.

Or should we fill it in with sprayed mortar?

To prevent this from happening, installing vegetation mats and the like is indeed essential.

 

While landscaping does depend on factors such as the season and regional variations in seed availability, it’s a relatively simple process, so if you have the chance, please give it a try.

 

See you later.

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