认识到树木和森林对人类的重要作用与贡献,世界上许多国家都有植树节,而且从分布的时间看世界上每月都有植树节。各国的植树节每年的3月12日是我国法定的植树节。与世界各国相比,我国设立植树节是比较迟的(1979年2月确定)。世界上最早设立植树节的是美国的内布拉斯加州,于1872 Recognizing the important role and contribution of trees and forests to humankind, many countries in the world have tree-planting days and the world sees tree planting every month from the point of distribution. Arbor Day in each country on March 12 every year is our country’s legal Arbor Day. Compared with other countries in the world, the establishment of Arbor Day in our country is relatively late (February 1979). The earliest Arbor Day in the world was in the United States, Nebraska, in 1872