The Ecological Value Of Arbor Day

The Arbor Day is to protect people from advocating people to plant trees, encourage people to love trees, and remind people to pay attention to trees. Trees play an important role in the survival of human beings and in the ecological environment of the earth.

Prof Dees, Professor of Agricultural University of Calcutta, India, calculated the ecological value of a tree:

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A 50-year-old tree, calculated cumulatively, generates about $31,200 worth of oxygen;

Absorption of harmful gases and prevention of air pollution worth approximately US$62,500;

Increase soil fertility value by approximately US$31,200;

Conserve water source value of 37,500 US dollars;

Providing breeding grounds for birds and other animals worth 31,250 U.S. dollars;

Generate protein worth 2,500 dollars,

The total value of about 196,000 US dollars.

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