1.

Conference Proceedings
Conference Proceedings
1. Digital Northeast China for about 100 years: RS dynamic observations and GIS frame design and example analysis regarding resources and the environment in Northeast China
Zhang, S. ; Xu, X. ; Li, Y. ; Chang, L. ; Zhang, Y. ; Gao, Z.
Pub. info.: Remote sensing and modeling of ecosystems for sustainability : 2-4 August 2004, Denver, Colorado, USA.  pp.400-409,  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. Recent land-use change and its impact on farmland productivity in China (Invited Paper)
Liu, J. ; Gao, Z. ; Xu, X. ; Zhuang, D.
Pub. info.: Remote sensing and modeling of ecosystems for sustainability : 2-4 August 2004, Denver, Colorado, USA.  pp.295-300,  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
3.

Conference Proceedings
Conference Proceedings
3. 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