2007—2012 | Member, 17th CPC, Central Committee, Central Commission for Discipline Inspection | |
2002—2007 | Alternate Member, 16th CPC, Central Committee | |
2000—2003 | Secretary, Farming Office Gansu Province | |
2000—2003 | Vice-President, Chinese Academy of Sciences, Lanzhou Branch Gansu Province, Lanzhou City | |
1998—2003 | Director, Farming Office Gansu Province | |
1993—1998 | Deputy Director, Gansu Grassland Ecological Research Institute Gansu Province | |
1991—1993 | Assistant Director, Gansu Grassland Ecological Research Institute Gansu Province | |
1986—1991 | Director, (Yunnan-Guizhou plateau experiment station) | |
1982—1986 | Researcher, Gansu Grassland Ecological Research Institute Gansu Province | |
1978—1982 | Student, Gansu Agricultural University Gansu Province, Lanzhou City |