September 1988 to June 1992, majoring in botany and biology in Lanzhou University; September to June, 0992, 1995, majoring in pollution ecology; From September, 1999 to February, 2004, I majored in physical geography, resources and environment in Lanzhou University. Look at the resume of an in-service doctor.

June 1995 to June 1997, June 10 Assistant Professor, Department of Geography, Lanzhou University.

1997165438+1October to199965438+February Lecturer in Geography Department of Lanzhou University.

From June 5, 2000 to March 2007, he was an associate professor at the College of Resources and Environment of Lanzhou University.

Since April 2007, he has served as a professor and doctoral supervisor at the College of Resources and Environment of Lanzhou University.

From June 2000 to April 2006, 5438+0 conducted cooperative research in University of London, UK.

From March 2002 to July 2003, he conducted cooperative research at Columbia University.

In March 2003, he visited the Free University of Berlin, Germany.

In August 2003, the Nevada Desert Research Institute and the University of California, Davis visited.

From September 2005 to February 2007, 65438+ conducted cooperative research in the tree ring laboratory of Columbia University.