Over at virtualglobetrotting.com commenter who has a good track record on these types of things says:

"The circular area with the planes in the middle is a missile impact test target, used to test the warhead effectiveness of Chinese missiles. The planes and other objects are used to document the warhead blast effectiveness.

Just to the west of the circular area are two buildings, possibly just stacked shipping containers, also used to test warhead effectiveness.

This leads me to believe the fake runway and the white lines are all part of a testing area, and the lines on the ground are somehow used to measure impact and explosive effectiveness of the warhead. The fake runway may provide a target for other weapons, possibly runway denial munitions.

The U.S. operates similar facilites at the Naval Weapons Station at China Lake. northeast of Los Angeles."