The Maowusu Desert and the Tengeli Desert are important deserts in the North China. The Maowusu Desert lies to the eastof the Helan mountain and the other lies to the westof it. From 1986 to 2000

affected by climatic change and increasingly intensif ying force of anthropic activity

land cover land use of the margin regions of two desert

which falls into Shannxi Province

Gansu Province and Ningxia Hui Autonomous Region

had changed evidently. Attributing to different dry-humid terrain and other factors

land-cover land-use change of two desert marginal regions displayed different trait each other. The study used method of analysis landscape structure to describe the difference of the wo marginal regions

and with it

to expose different mode of ecological environ-mentresponding to variety of climatic and anthropic activity

which happened in two marginal regions being partof ecotone in the semi-arid or arid of the North China.