Leroy H. (Chuck) Wullstein, professor of geography at the University of Utah, has been invited to an international conference in Inner Mongolia, People's Republic of China, to discuss methods of conserving arid lands and making them more productive.

Representatives from Europe, Australia and Asia have been invited to the meeting, which is sponsored by Inner Mongolia University. It is hoped the conference will spawn cooperative research among nations, says Wullstein.Arid regions make up one-third of the earth, 52 percent of China and about 75 percent of Utah's surface. The conference will focus on three questions: What is the production potential for arid lands? What are the human and animal population capacities of such lands? And what can be done to overcome present limitations of arid lands?