During the Anti-Rightist Movement , his poetry was criticized as counter-revolutionary , and Zhang was sent to a labor camp in Ningxia at age 21 .
Zhang began publishing poetry at the age of 13 .
During the Anti-Rightist Movement , Zhang 's poetry was criticized as counter-revolutionary , Zhang Zhang was sent to a labor camp in Ningxia at age 21 .
Zhang began publishing poetry at the age of 13 .