1.

Conference Proceedings
Conference Proceedings
1. Changes of soil characteristics in process of land desertification
Wang, L. ; Zhang, Y. ; Zhang, H. ; Xu, J. ; Li, X.
Pub. info.: Ecosystems Dynamics, Ecosystem-Society Interactions, and Remote Sensing Applications for Semi-Arid and Arid Land.  Part One  pp.187-192,  2003.  Bellingham, WA.  SPIE-The International Society for Optical Engineering
Title of ser.: Proceedings of SPIE - the International Society for Optical Engineering
Ser. no.: 4890
2.

Conference Proceedings
Conference Proceedings
2. Impact of environmental factor variation on desertification: an example from the Shule River area
Zhang, Y. ; Li, X. ; Wang, L. ; Zhang, H.
Pub. info.: Ecosystems Dynamics, Ecosystem-Society Interactions, and Remote Sensing Applications for Semi-Arid and Arid Land.  Part One  pp.205-210,  2003.  Bellingham, WA.  SPIE-The International Society for Optical Engineering
Title of ser.: Proceedings of SPIE - the International Society for Optical Engineering
Ser. no.: 4890