Trees are the longest living organisms on the planet and one of the earth’s greatest natural resources. They keep our air supply clean, reduce noise pollution, improve water quality, help prevent erosion, provide food and building materials, create shade, and help make our landscapes look beautiful.
Here are some more thought-provoking facts and figures about our oldest citizens and living treasures…trees!
- Trees receive an estimated 90% of their nutrition from the atmosphere and only 10% from the soil.
- Trees grow from the top, not from the bottom as is commonly believed. A branch’s location on a tree will only move up the trunk a few inches in 1000 years.
- No tree dies of old age. They are generally killed by insects, disease or by people. California Bristlecone Pines and Giant Sequoias are regarded as the oldest trees and have been known to live 4,000 to 5,000 years.
- Mature trees can add 10% to your property value.
- Some trees can “talk” to each other. When willows are attacked by webworms and caterpillars, they emit a chemical that alerts nearby willow of the danger. The neighboring trees then respond by pumping more tannin into their leaves making it difficult for the insects to digest the leaves.
- Knocking on wood for good luck originated from primitive tree worship when rapping on trees was believed to summon protective spirits in the trees.
- Trees can induce rainfall by cooling the land and transpiring water into the sky from their leaves. An acre of maple trees can put as much as 20,000 gallons of water into the air each day.
- Trees properly placed around buildings can reduce air conditioning needs by 30%.
- A mature tree removes almost 70 times more pollution than a newly planted tree.
- Each average-sized tree provides an estimated £4 savings in annual environmental benefits, including energy conservation and reduced pollution.
- A single tree produces approximately 260 pounds of oxygen per year. That means two mature trees can supply enough oxygen annually to support a family of four!
- One tree can absorb as much carbon in a year as a car produces while driving 26,000 miles.
- Over the course its life, a single tree can absorb one ton of carbon dioxide.