1.

Conference Proceedings
Conference Proceedings
1. Remotely sensed changes in agricultural productivity in China from the 1980s to the 1990s
Yan, H. ; Liu, L. ; Cao, M. ; Gao, Z. ; Zhuang, D. ; Guo, J. ; Xu, X.
Pub. info.: Remote sensing and modeling of ecosystems for sustainability : 2-4 August 2004, Denver, Colorado, USA.  pp.319-327,  2004.  Bellingham, Wash., USA.  SPIE - The International Society of Optical Engineering
Title of ser.: Proceedings of SPIE - the International Society for Optical Engineering
Ser. no.: 5544
2.

Conference Proceedings
Conference Proceedings
2. Responses of net primary productivity (NPP) in Xinjiang to climate changes from 1981-2000
Gao, W. ; Gao, Z. ; Pan, X. ; Slusser, J.R. ; Cao, M. ; Qi, J. ; Zhang, J. ; Zhan, X. ; Ma, Y.
Pub. info.: Ecosystems' dynamics, agricultural remote sensing and modeling, and site-specific agriculture : 7 August 2003, San Diego, California, USA.  pp.73-84,  2003.  Bellingham, Wash., USA.  SPIE - The International Society of Optical Engineering
Title of ser.: Proceedings of SPIE - the International Society for Optical Engineering
Ser. no.: 5153
3.

Conference Proceedings
Conference Proceedings
3. Analysis on impact of climate changes over the past twenty years on NPP in China
Gao, Z. ; Liu, J. ; Cao, M. ; Wang, Q. ; Gao, W. ; Slusser, J. ; Pan, X.
Pub. info.: Remote sensing and modeling of ecosystems for sustainability : 2-4 August 2004, Denver, Colorado, USA.  pp.553-560,  2004.  Bellingham, Wash., USA.  SPIE - The International Society of Optical Engineering
Title of ser.: Proceedings of SPIE - the International Society for Optical Engineering
Ser. no.: 5544