| 2003— | Director, National Natural Science Foundation of China | |
| 2003— | Member, 10th Environmental and Resources Protection Committee of the NPC | |
| 2003— | Member, 10th Standing Committee of the NPC | |
| 1997—2002 | Delegate, 15th CPC, National Congress | |
| 1995—2003 | Vice-President, Chinese Academy of Sciences | |
| 1992—1997 | Delegate, 14th CPC, National Congress | |
| 1991—1995 | Director, Chinese Academy of Sciences, Institute of Hydrobiology | |
| 1991— | Academician, Chinese Academy of Sciences | |
| 1988—1993 | Deputy, 7th NPC | |
| 1983—1988 | Deputy, 6th NPC |