What is Tree ?

They curate that memory in the DNA," she said. "The DNA is encoded and has adapted through mutations to this environment. So that genetic code carries the code for variable climates coming up

The presence of trees reduces the chance of violent behaviour in crowded areas by making the environment ‘softer’

Trees are invaluable for the many direct and indirect benefits we derive from them, they help to:

Provide food and shelter for wildlife
Protect snow pack and watersheds

Most tree roots stay in the top 18 inches of soil, but they can also grow above ground or dive a few hundred feet deep.Holding up a tree is a tall order, but it's often achieved by surprisingly shallow roots. Most trees don't have a taproot, and most tree roots lie in the top 18 inches of soil, where growing conditions tend to be best. More than half of a tree's roots usually grow in the top 6 inches of soil, but that lack of depth is offset by lateral growth: The root system of a mature oak, for example, can be hundreds of miles in length.

Tall growing trees live for much longer, around 200 years plus, than short growing trees which live up to 30 years on average

Help purify our lakes and streams
Hold soil in place to prevent erosion

Still, tree roots vary widely based on species, soil and climate. Bald cypress grows along rivers and swamps, and some of its roots form exposed "knees" that supply air to underwater roots like a snorkel. Similar breathing tubes, called pneumatophores, are also found in the stilt roots of some mangrove trees, along with other adaptations like the ability to filter up to 90 percent of salt out of seawater.

Trees bring happiness to many people.

Areas which have many large, leafy trees have less litter, less dumping & less graffiti

Protect livestock from inclement weather
Act as living snow fences, keeping critical roadways passable

Trees create privacy which is important in heavily populated areas

On the other hand, some trees do extend remarkably deep underground. Certain types are more prone to grow a taproot — including hickory, oak, pine and walnut — especially in sandy, well-drained soils. Trees have been known to go more than 20 feet (6 meters) below the surface under ideal conditions, and a wild fig at South Africa's Echo Caves has reportedly reached a record root depth of 400 feet.

Areas with a high tree canopy ratio have less crime. Property owners are more likely to care for their front gardens in streets where there are many tall & beautiful street trees

Reduce energy consumption by deflecting cold winter winds and providing shade on summer days.

Many trees provide food for people.

A large oak tree can consume about 100 gallons of water per day, and a giant sequoia can drink up to 500 gallons daily.Many mature trees require a huge amount of water, which may be bad for drought-stricken orchards but is often good for people in general. Thirsty trees can limit flooding from heavy rain, especially in low-lying areas like river plains. By helping the ground absorb more water, and by holding soil together with their roots, trees can reduce the risk of erosion and property damage from flash floods.

Reduce energy consumption by deflecting cold winter winds and providing shade on summer days.

An Amazon Indian tribe believes that the forest trees hold up the sky.  When the trees fall, so will life on Earth.  Interesting message in these days of climate change where trees are needed more than any other time in the known history of humankind.

Properties which have good looking trees rent faster

Turn drab vistas into beautiful landscapes with their natural forms and colors

A single mature oak, for example, is able to transpire more than 40,000 gallons of water in a year — meaning that's how much flows from its roots to its leaves, which release water as vapor back into the air. The rate of transpiration varies during the year, but 40,000 gallons averages out to 109 gallons per day. Larger trees move even more water: A giant sequoia, whose trunk may be 300 tall, can transpire 500 gallons a day. And since trees emit water vapor, large forests also help make it rain.

Tenants stay longer when the property has leafy trees

As a bonus, trees have a knack for soaking up soil pollutants, too. One sugar maple can remove 60 milligrams of cadmium, 140 mg of chromium and 5,200 mg of lead from the soil per year, and studies have shown farm runoff contains up to 88 percent less nitrate and 76 percent less phosphorus after flowing through a forest.

Street trees can give a suburb an identity especially if there are mass plantings ie. the Town of the Jacarandas

Trees provide shade & shelter for people & their belongings