Tree propping: how we maintain trees from
Created By RISC | 3 years ago
Last modified date : 2 years ago
From the last post, we know where the big trees in real estate projects come from. But once they’re transplanted, there’s more to do.
First of all, up to 80-90% of roots are lost in transplanting. Roots absorb water and nutrients and also support the trunk. So transplanting leaves the trees needing support – which is done with tree propping.
There are many different types of tree propping depending on size, characteristics, and risk of harm to people, property, or budgets. The most important aspect is stability because a falling tree is a risk to people and property.
Tree propping has 5 main types...
1. Single bracing: vertical or inclined poles tied to a tree, suitable for small trees.
2. Double bracing: 2 pillars strapped to the trunk for larger trees.
3. Stall bracing: 4 pillars around a tree fastened together with supporting poles to absorb the wind.
4. Marquee tree propping: 3 or more poles sloping toward the tree and held together for structural strength.
5. Underground bracing: poles and structures anchored around the soil pit, some possibly slightly above the soil surface, suitable for small and medium-sized trees where props would spoil the view.
Materials vary as well as design, depending on budget, strength, and durability. There are 3 types of material:
1. Steel: suitable for large trees where there is a risk to people, offering strength for long-term use but with a higher price.
2. Wood: suitable for medium to large trees where there is a low risk to people; eucalyptus and pine wood are common; this has a low price but is only for short-term use.
3. Slings: suitable for medium to large trees; they are less visible but cost more than wood.
Transplanting a tree involves many processes, with each detail considered to keep trees alive as they are precious for both people and the environment, enhancing our well-being.
Story by: Thanawat Jinjaruk, Senior Researcher, Environment Division, RISC