Skip to content Skip to cookie consent
Footsteps magazine issues on a wooden desk.

From: Soil erosion – Footsteps 15

How to reduce the damaging effects of wind and water on soil

by Mike Carter.

Imagine you need to push a loaded cart down a gentle slope. You first have to get the cart moving - this may need quite a hard push. Once the cart is moving, a steady, gentle push may keep it moving down the slope. Getting the cart moving in the first place takes a lot of effort - keeping it moving is easier.

This picture may help in understanding and controlling soil erosion. If soil particles are being eroded down a slope, something must first provide the push, firstly to get them moving and, secondly to keep them moving down the slope. With wind erosion, a strong gust of wind may lift soil off the ground - then a more gentle wind may be enough to keep it moving in the air for very long distances.

With erosion by water, the farmer faces two enemies...

Two enemies

Rain drop impact
The force of rain drops hitting the soil causes splashes that lift soil particles into the air. It also breaks up larger soil clumps into small ones, easier to move. Rain splash also makes the soil surface smooth, filling cracks with clay - water can then only penetrate such a surface slowly.

Run-off is the water that moves over a sloping soil surface. This happens when the rain is falling faster than the rain can be soaked up into the soil. The faster run-off water moves, the more soil particles it can carry. How fast the water flows will depend, in turn, on how steep and how long the slope is.

Two solutions

Soil cover
Cover the soil as much as possible. Anything that can absorb the energy of raindrops will help - especially at the beginning of the rainy season, when storms are usually at their worst and the soil is often bare.

The cover needs to be close to the soil surface to protect it. For example, the leaves of tall trees give little protection. The leaves of a low lying shrub protect the soil surface well.

Stop water moving down the slope or slow the water down so it cannot carry so much soil.

Anything that makes the soil more level, or that divides a slope into shorter lengths, will reduce run-off speed. Slower moving water causes less erosion - it also has more time to soak into the soil.

In areas with heavy storms, build strong barriers and create controlled waterways to channel excess water to safety.

Control methods

Cover methods
Cover crops and green manures
Inter-cropping and mixed cropping
Early planting
Crop residues
Minimum cultivation

Barrier methods
Contour grass strips
Contour hedges and trees
Contour ploughing
Contour ridges and ditches
Contour crop planting
Contour trash lines


It is generally best to use several methods together. For example, mulching and grass strips used together with contour hedges.

Mike Carter is head of T-CORD at Bishop Burton Agricultural College, Beverley, North Humberside, UK, with experience of soil conservation programmes in Papua New Guinea and Kenya. 

Similarly Tagged Content

Share this resource

If you found this resource useful, please share it with others so they can benefit too.

Sign up now to get Footsteps magazine

A free digital and print magazine for community development workers. Covering a diverse range of topics, it is published three times a year.

Sign up now

Cookie preferences

Your privacy and peace of mind are important to us. We are committed to keeping your data safe. We only collect data from people for specific purposes and once that purpose has finished, we won’t hold on to the data.

For further information, including a full list of individual cookies, please see our privacy policy.

  • These cookies are necessary for the website to function and cannot be switched off in our systems.

  • These cookies allow us to measure and improve the performance of our site. All information these cookies collect is anonymous.

  • These allow for a more personalised experience. For example, they can remember the region you are in, as well as your accessibility settings.

  • These cookies help us to make our adverts personalised to you and allow us to measure the effectiveness of our campaigns.