植树节在3月12日。
Tree Planting Day is on March 12.
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。
China's Arbor Festival was initiated by Ling Daoyang, Han An, Pei Yili and other
foresters in 1915, initially setting the time for the annual Qingming Festival.
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。
In 1928, the National Government changed the Arbor Day to March 12 to commemorate
the third anniversary of Sun Yat-sen's death.
新中国成立后的1979年,在邓小平提议下。
In 1979, after the founding of New China, on the proposal of Deng Xiaoping.
第五届全国人大常委会第六次会议决定每年3月12日为我国的植树节。
the sixth meeting of the Standing Committee of the Fifth National People's Congress decided that March 12 would be the Arbor Day of our country every year.