All About Trees
Trees cool air two ways
They help to cool the surrounding air in two ways: (a) trees provide shade, thereby keeping street and building surfaces cooler; and (b) trees use evapotranspiration to cool themselves and the surrounding air. Evapotranspiration is the process by which trees "transpire", or perspire, so to speak, from both the leaves and the root systems. The result is, as the water evaporates it dissipates the heat in and around the tree which leads to cooler air in the area encompassing the tree.
Trees filter water
capable of cleaning up the most toxic wastes, including explosives, solvents and organic wastes, largely through a dense community of microbes around the tree’s roots that clean water in exchange for nutrients, a process known as phytoremediation. Tree leaves also filter air pollution. A 2008 study by researchers at Columbia University found that more trees in urban neighborhoods correlate with a lower incidence of asthma.
They relieve stress? Yes!
In Japan, researchers have long studied what they call “forest bathing.” A simple walk in the woods reduces the level of stress chemicals in the body and increases natural killer cells in the immune system, which fight tumors and viruses. Studies in inner cities show that anxiety, depression and even crime are lower in a landscaped environment.
Change Color!!!
I've always wondered...why do they?
They help to cool the surrounding air in two ways: (a) trees provide shade, thereby keeping street and building surfaces cooler; and (b) trees use evapotranspiration to cool themselves and the surrounding air. Evapotranspiration is the process by which trees "transpire", or perspire, so to speak, from both the leaves and the root systems. The result is, as the water evaporates it dissipates the heat in and around the tree which leads to cooler air in the area encompassing the tree.
Trees filter water
capable of cleaning up the most toxic wastes, including explosives, solvents and organic wastes, largely through a dense community of microbes around the tree’s roots that clean water in exchange for nutrients, a process known as phytoremediation. Tree leaves also filter air pollution. A 2008 study by researchers at Columbia University found that more trees in urban neighborhoods correlate with a lower incidence of asthma.
They relieve stress? Yes!
In Japan, researchers have long studied what they call “forest bathing.” A simple walk in the woods reduces the level of stress chemicals in the body and increases natural killer cells in the immune system, which fight tumors and viruses. Studies in inner cities show that anxiety, depression and even crime are lower in a landscaped environment.
Change Color!!!
I've always wondered...why do they?
