Yeomans Scale of Permanence
The Yeomans Scale of Permanence is a simple tool used in permaculture and farm planning. It helps people design land and gardens in the best order — starting with what is most permanent (hard to change) and ending with what is least permanent (easy to change). It was created by P.A. Yeomans, an Australian farmer and engineer, who also developed the famous Keyline Design system for water management.
Why it is Important
When planning a farm, garden, or landscape, it’s easy to make mistakes if we don’t think about what can and cannot easily be changed. The Yeomans Scale helps people plan in a logical order so that important features like water and roads are in the right places before planting trees or building fences.
It teaches us that good design starts with nature, not with human wishes.
The Order of the Scale
The scale has eight main parts, listed from most permanent to least permanent:
- Climate – This is the most permanent. We cannot change the rain, sun, or temperature, but we can understand them and work with them.
- Landform – The shape of the land: hills, valleys, slopes. We can’t easily change these, so we plan our water and roads around them.
- Water – Dams, rivers, swales, and ponds must come next. They affect everything that follows.
- Roads and Access – Roads need to follow the land and water systems so they don’t cause erosion.
- Trees and Forests – Trees help control water, create shade, and improve soil. They can last many years but can be changed if needed.
- Buildings – Houses, barns, and sheds should be placed after we know where the water and trees go.
- Fences – These divide areas for animals or crops. They are cheaper and easier to move.
- Soil – Soil is the most changeable. With compost, mulch, and good management, it can be improved quickly.
Additional levels:
This version of the Yeomans Scale of Permanence expands the original 8 levels to 11, adding three important layers that relate more to people, culture, and management.
9. Invisible Structures (Social and Economic)
This layer looks at how people and communities organise themselves — the rules, traditions, and systems that support daily life. It includes things like ownership, education, cooperation, and money systems.
In a permaculture or village project, this could mean how people share tools, divide land, or make group decisions. Strong invisible structures help the physical systems (like water or trees) survive for a long time because people care for them together.
5. Microclimate
A microclimate is the small climate in a specific area — for example, the shady side of a house or a sunny spot near a wall.
Designers can create or change microclimates by planting trees, building windbreaks, or using water features.
In Namibia, this is very important. Shade trees, for example, can make gardens cooler and protect soil from drying out. Even a small change in wind or sunlight can make plants grow better.
1. Aesthetics and Experience
This layer reminds us that land design is not only about survival — it’s also about beauty, peace, and how people feel in a place.
A farm or garden should be enjoyable and inspiring. Beautiful spaces motivate people to care for the land.
In schools, community gardens, or homesteads, adding colour, art, or quiet resting places makes people proud of their environment and more connected to nature.
These three newer levels help connect the physical design (water, trees, soil) with the human and emotional side (community, management, and wellbeing).
They remind us that regeneration is not only about land — it’s also about the people who live on it.
Example
Imagine you are planning a small farm near Windhoek. First, you learn about the climate — hot and dry with little rain. Then you look at the landform, maybe a gentle slope leading to a valley. Next, you plan where to store water, like a small dam or swales. After that, you design roads that don’t cross the water flow. Then you plant trees for shade and wind protection, place buildings where it’s cool, put fences to divide fields, and finally improve the soil using compost and mulch.
By following this order, you save time and money and create a system that works with nature, not against it.
How It Helps in Namibia
In Namibia, where water is precious and land is often dry, the Yeomans Scale helps farmers and gardeners plan carefully. It prevents erosion, improves soil health, and makes farms more resilient to drought.
It also fits well with permaculture ideas — working with natural systems, using resources wisely, and thinking for the long term.
Learn More
- Book: The Challenge of Landscape by P.A. Yeomans
- Video: Keyline Design Explained – RegenAg
- Article: Permaculture Research Institute – Yeomans Scale
Tags: #permaculture #design #education #farmplanning #soil
