Answered by Emily from Ireland | Dec. 12, 2013 19:25
If you are referring to Zhengzhou, you can travel by train or by air. Train takes 18h or longer and plane between takes around 2h.
If you mean Zhangzhou in Fujian Province, apart from the train service, which takes around 11h, you can take a long-distance bus at Guangzhou Provincial Bus Station or East Bus Station.