science

Tree shelter

Tree shelter is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Tree shelter rather than just read about it. In short: A tree shelter, tree guard or tree tube, also Tuley tube after their inventor, is a structure used in tree planting, arboriculture and tree care that protects planted tree saplings from browsing animals and other dangers as the trees grow. The purpose of tree shelters is to protect young trees from browsing by herbivores by forming a physical barrier along with providing a barrier to chemical spray applications.

Key takeaways

Tree shelter belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Tree shelter to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Tree shelter from memory before moving on to harder problems.

Reference excerpt

A tree shelter, tree guard or tree tube, also Tuley tube after their inventor, is a structure used in tree planting, arboriculture and tree care that protects planted tree saplings from browsing animals and other dangers as the trees grow. The purpose of tree shelters is to protect young trees from browsing by herbivores by forming a physical barrier along with providing a barrier to chemical spray applications. Additionally, tree tubes accelerate growth by providing a mini-greenhouse environment that reduces moisture stress, channels growth into the main stem and roots and allows efficient control of weeds that can rob young seedlings of soil moisture and sunlight. Young trees protected in this way have a survival rate of around 85%, but without a tree guard only about half of all planted trees grow to adulthood. Wrought iron, wire and wooden tree guards were used in Victorian England since the 1820s, but not always because of their cost. Plastic tube tree shelters were invented in Scotland in 1979 by Graham Tuley. They are particularly popular in the UK in landscape-scale planting schemes and their use has been established in the United States since 2000. About 1 million shelters were in use in the United Kingdom in 1983–1984, and 10 million were produced in 1991. Many variations of tree shelters exist. There is considerable debate among tree shelter manufacturers as to the ideal colour, size, shape and texture for optimal plant growth. One style used in northern climates of North America has a height of 1.5 m (5 ft) to offer the best protection from deer browse, with vent holes in the upper portion of the tube to allow for hardening off of hardwood trees going into the winter months, and no vent holes in the lower portion to shield seedlings from herbicide spray and rodent damage. The use of plastic tube tree shelters leads to the contamination of the environment with microplastics as the tubes, which are normally not collected, degrade over time. For this reason, biodegradable, plastic-free options are becoming available in the market. Other alternatives include wooden or metal fencing to keep animals out.

References

Lantagne, D. O. (1997). "Using Tree Shelters To Establish Northern Red Oak And Other Hardwoods" (PDF). Michigan State University Extension Bulletin: 2. Retrieved 5 April 2015. Potter, M. J. (1991) Treeshelters - Forestry Commission Handbook 7 HMSO Tuley, G. (1985). "The growth of young oak trees in shelters". Forestry. 58 (2): 181–19. doi:10.1093/forestry/58.2.181.

External links

Product information of manufacturer Tree Tube: "Independent Studies". Tree.Tube. Retrieved 2019-11-25.

Illustrations

Worked examples

Example 1 — a first encounter with Tree shelter

Start with the simplest possible case. Write down what Tree shelter claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Tree shelter before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Tree shelter ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Tree shelter

In research: Tree shelter appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Tree shelter in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Tree shelter is common in secondary-school and first-year university syllabi. It links to neighbouring topics Forestry tools, Habitat management equipment and methods, Plastics applications, so understanding it makes those chapters shorter.
In everyday life: Look for Tree shelter outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Tree shelter” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Tree shelter in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Tree shelter means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Tree shelter out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Tree shelter in simple terms?

Why does Tree shelter matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Tree shelter?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Tree shelter.