What do the five trees on the Arbor Day sign mean?

The five trees in the emblem of Arbor Day show that every citizen in our country will plant three to five trees, and everyone will work hard to green the motherland. The words "China Arbor Day" and "3. 12" engraved on it not only remind people of the date of Arbor Day, but also reflect the perseverance and determination of China people to plant trees every year to benefit mankind. Three conifers and two broad-leaved trees will mean "forest". The outer circle around the forest represents a virtuous circle of natural ecosystem with forest as the main body. Arbor Day is a festival to publicize and protect trees according to law, and to organize and mobilize the masses to actively participate in afforestation. According to the length of time, it can be divided into Arbor Day, Tree Planting Week and Tree Planting Month, and * * * is called International Arbor Day. It is advocated to stimulate people's enthusiasm for afforestation through such activities and realize the importance of environmental protection.