1. Betts, R. A., P. M. Cox, S. E. Lee, and F. I. Woodward, 1997: Contrasting physiological and structural vegetation feedbacks in climate change simulations. Nature, 387, 796–800.
2. Chase, T. N., R. A. Pielke, T. G. F. Kittel, R. Nemani, and S. W. Running, 1996: The sensitivity of a general circulation model to global changes in leaf area index. J. Geophys. Res., 101, 7393–7408.
3. China Meteorological Data Sharing Service System, cited 2010: Dekad datasets of crop growth and development and soil moisture in China. [Available online from http://cdc.cma.gov.cn/shuju/index3.jsp?dsid=AGME AB2 CHN TEN&pageid=3url ]
4. Ciais, P., P. P. Tans, M. Trolier, J. W. C. White, and R. J. Francey, 1995: A large northern hemisphere terrestrial CO2 sink indicated by the 13C/12C ratio of atmospheric CO2. Science, 269, 1098–1102.
5. Claussen, M., 1995: Modeling bio-geophysical feedback in the Sahel. Max-Planck-Instutut für Meteorologie, No. 163, 26pp. [Available from Max-Planck-Institut für Meteorologie, Bundestrasse 55, 20146 Hamburg, Germany]