植树节是按照法律规定宣传保护树木，并组织动员群众积极参加以植树造林为活动内容的节日。按时间长短可分为植树日、植树周和植树月，共称为国际植树节。提倡通过这种活动，激发人们爱林造林的热情、意识到环保的重要性。

中国的植树节由凌道扬和韩安、裴义理等林学家于1915年倡议设立，最初将时间确定在每年清明节。1928年，国民政府为纪念孙中山逝世三周年，将植树节改为3月12日。新中国成立后的1979年，在邓小平提议下，第五届全国人大常委会第六次会议决定将每年的3月12日定为植树节。

2020年7月1日起，施行新修订的《中华人民共和国森林法》，明确每年3月12日为植树节。

Tree Planting Day is a festival that publicizes and protects trees in accordance with the provisions of the law, and organizes and mobilizes the masses to actively participate in afforestation activities. According to the length of time, it can be divided into tree planting day, tree planting week and tree planting month, which are collectively called International Tree Planting Day. It is advocated to stimulate people's enthusiasm for forestation and realize the importance of environmental protection through such activities.

China's Tree Planting Day was proposed by Ling Daoyang, Han An, Pei Yili and other foresters in 1915, and was initially set at the annual Qingming Festival. In 1928, the National Government changed the Arbor Day to March 12 to commemorate the third anniversary of Sun Yat-sen's death. In 1979 after the founding of the People's Republic of China, at the proposal of Deng Xiaoping, the sixth session of the Standing Committee of the Fifth National People's Congress decided to designate March 12 as the Arbor Day every year.

From July 1, 2020, the newly revised Forest Law of the People's Republic of China will be implemented, and it is clear that March 12 of each year is the Arbor Day.

植树节312：多一片绿叶，多一份温馨！