Roles Related to that of a Tree Surgeon
A Grounds Person or Tree Maintenance Associate assists senior personnel in pruning and removing trees and shrubs while learning to operate hand tools and heavy machinery, such as chainsaws, and other equipment, such as ropes, ladders and harnesses. Once you understand the rigging systems, you may be allowed to help control the rigging ropes and pull lines. You also learn about compartmentalisation in trees and appropriate pruning practices to minimise exposure to decay.
A Climbing Arborist specialises in removing deadwood, thinning, reducing or raising crowns, and reducing the weight of specific branches. You might also remove trees of various sizes and with different degrees of challenges, using rigging systems as needed. Achieving efficiency in climbing takes courage, time, dedication, and careful observation of techniques with utmost regard to safety. Your work is likely to differ daily, from installing lightning protection systems in tall or significant trees to bracing or supporting the canopy. Given your expertise, you will likely lead the team.
A Plant Healthcare Technician applies various tools and techniques to trees and woody shrubs in the urban environment. You must be versatile in your knowledge of plant identification, soil science, and pests and diseases where you work. Then you can develop a program to tackle problems through preventative care, pruning, spray applications of pesticides, fertilisation, root invigoration, and identifying issues such as girdling roots.
A professional Arborist Representative does not necessarily carry out physically strenuous field responsibilities. Instead, you liaise with residential clients, architects, builders and developers to provide advice on tree care. In addition to a thorough knowledge of arboriculture theory and practical skills, you also need excellent communication and people skills that enable you to listen to clients’ requirements and provide solutions that meet those needs.
A Tree Consultant addresses clients’ worries for insurance claims or as part of pre-development or pre-construction processes. Your work is more theory-based than practical. As part of your review, you study the environment and specific trees to evaluate if the trees pose any risk and to what extent. If they do, you recommend appropriate and feasible follow-up action.
A Pesticide Applicator works with fungicides, herbicides, insecticides, and pesticides as vapours, chemical applications, dust, and sprays. You choose and apply the suitable material to trees and woody plants and shrubs depending on the problem to eliminate while strictly abiding by safety protocols to avoid dangerous exposure to the chemicals.
Tree Surgeon vs Arborist
The two roles in the field of tree care are often thought of as the same, and the titles are used interchangeably. There is a significant overlap in the work that Tree Surgeons and arborists do and the extensive knowledge and experience each requires. However, arborists typically hold higher and more formal educational qualifications and certification than Tree Surgeons, who may learn the trade more from working in the field than in a classroom. The specific title and duties of your job may eventually depend on the tree services provider you work for.
In general, arborists are specialists and practitioners in arboriculture or the study, cultivation and management of trees. They study the structure and functions of trees, their growth and cultivation, how they react to pruning, the diseases that affect them, and the process of decay. They also research shrubs, vines, and other perennial woody plants in dendrology and horticulture.
The role of arborists is similar to that of a family doctor in that they assess and manage the overall health of individual trees, detecting signs of current or potential disease or insect infestation and developing a treatment or prevention plan. They may then hand over their diagnosis and course of treatment to Tree Surgeons to execute. Arborists also provide advice on what types of trees should be planted in specific environmental surroundings.
Tree Surgeons are skilled in trimming and pruning different kinds of trees. Just like surgery on humans and animals, tree surgery requires a skilled, trained and experienced hand, specialised tools, and the knowledge and pursuit of precise processes. Tree Surgeons also carry out skilled and precise tree removal in ways that do not cause damage to neighbouring trees or buildings. Furthermore, Tree Surgeons often work in dangerous situations, and an untrained individual cannot be trusted with the job.
Arborist vs Forester
An arborist is concerned with the well-being of individual plants and trees, while foresters are experts in the art and science of managing forests.
The Benefits of Trees
Given that there are over 60,000 known tree species on earth, it is vital to be aware of the tremendous contribution of trees to making our planet habitable. Trees contribute to improved water quality by filtering rainfall. Two mature trees can sustain the oxygen requirements for four people. They also reduce noise, air and water pollution and prevent soil erosion and flooding.
Studies show that being in an environment where trees abound can lower blood pressure, pulse rate and stress. It is also reported that patients with a view of trees from their room in a medical facility may heal faster and get discharged sooner.
Furthermore, there appears to be growing evidence of the inverse relationship between crime and green spaces with plenty of trees.
Mature trees may also increase property value. Plus, even four strategically planted trees in your garden may sizeably slash down your energy bills, primarily by reducing air conditioning needs.
A Few More Interesting Facts About Trees
Some trees need vast quantities of water - a large oak tree can guzzle up more than 350 litres a day. The coast redwoods (Sequoia sempervirens) are the tallest among the world’s trees. The often-used saying “knock on wood” refers to ancient practices centred around the belief that good spirits inhabit trees.
Tree Compartmentalisation - Trees Don’t Heal But Seal
The layperson may think that trees heal any damage that happens to them through cell regeneration. However, in reality, trees repair their injuries through a process known as compartmentalisation or sealing the injuries they suffer. Humans and animals heal when the body creates tissue identical to the damaged tissue, for instance, new skin to heal a scrape or a cut. On the other hand, trees create wound wood and callous tissue to seal the wound, different from the damaged wood or bark.
The German forester, Robert Hartig, theorised that when a tree is wounded, fungi infect the wounds, and the outcome is decayed wood. The modern Compartmentalisation of Decay in Trees (CODIT) theory further explains that a tree forms four types of protective “walls’’ around its wounded parts to seal them off and slow down or prevent the spread of disease due to fungi and other organisms that infect the wood differently and at varied times. Chemical and physical changes, which are a tree’s response to the infections, lead to decayed, discoloured wood, but compartmentalisation helps to minimse their occurrence and impact.
Fertilisers Are Not “Food” for the Tree
Fertilisers are natural or chemically prepared nutrients, such as nitrogen, phosphorous, potassium and magnesium. When added to the soil, these and other minerals dissolve in the soil's water and are pulled up by the tree’s roots. However, while they support the tree’s metabolism and boost its growth, they are not its food.
It is during the process of photosynthesis that trees, like other plants, absorb carbon dioxide and water, converting them into sugar (starch) and oxygen with the help of sunlight. The starches provide the tree with the energy or food that helps it grow and reproduce. The roots store excess starch, which the tree uses when it needs additional energy.
What Tree Rings Reveal
Dendrochronology is the science of dating trees and woody shrubs by studying their rings or annual growth increments. What is interesting is that tree rings tell the story not just of the tree’s age but also how environmental conditions varied during the tree’s lifetime. They also point to natural disasters that may have occurred, such as droughts or volcanic eruptions. Rings are thick during years of healthy growth with plentiful resources at hand. Thin rings indicate a time of scarcity in the ecosystem.
A study has shown the adverse impact of rising temperatures on tree growth due to evapotranspiration, or the rate at which a tree or plant may lose water through its leaves. Similar studies have the potential to help scientists evaluate the impact of climate change.
Planting Trees Helps Mitigate the Energy Crisis
Planting trees and shrubs strategically can help save energy costs and resources by cooling down hot summer air and blocking cold winter winds, thereby reducing the need for air conditioning and heating.
Trees Absorb Noise
Leaves, twigs, and branches help reduce noise by absorbing it and deflecting sound waves through a phenomenon known as sound attenuation.
Stay Stressfree with Trees
Studies suggest that trees positively impact human well-being. Walking down a tree-lined avenue can perhaps have a destressing effect. Furthermore, some studies indicate that being with nature and trees fosters kindness to others, partly due to the chemicals called phytoncides that trees release.