[1] Chang was born in October 1914 in Jiexi County of Guangdong Province, PR China.
He established a Germany cooperation project and established a Rainforest Research Station in Bawangling, Hainan Province in 1987; and a Ministry of Education Tropical Subtropical Forest Ecosystem Experiment Station at the Heishiding of Guangdong in the same year.
[2] Research achievements He travelled to mountains all over China, including Guangdong, Guangxi, Hunan, Sichuan, and Yunnan Provinces.
[4] Chang’s major contribution on botanical theory was the Cathaysian origin of flowering plants, which was published in 1980 on the journal of Sun Yat-sen University.
The monograph series received the very prestigious China State Natural Science First Class Award in 2009, and he was one of the ten awardees.