Value of Single Tree in Urban Area
For a single tree with 50 years of lifetime, it worth;
$31,250 worth of oxygen,
$62,000 worth of air pollution control
$37,500 worth of recycled water
$31,250 worth of soil erosion
a single tree also can support oxygen for two person
the cost for planting the trees in urban area also
can be immediately gain just after 8 year of planting
USDA Forest Service
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