Only postal and customs revenues were continued to be sent to Beijing, because they had been pledged to foreign powers after the Boxer rebellion of 1900, and Zhang feared their intervention.

• 只有邮电和海关收入还仍然送往北京，因为在1900年义和团运动后关税被抵押给八国联军，张作霖害怕扣下关税后外国列强会介入。