1. Agbu, P. A. & James, M. E. (1994). The NOAA/NASA Pathfinder AVHRR Land Dataset User's Manual. Greenbelt, MD: Goddard Distributed Active Archive Center, NASA, Goddard Space Flight Center.
2. Ecosystem stability and compensatory effects in the Inner Mongolia grassland;Bai;Nature,2004
3. Ecological climatology: Concepts and applications;Bonan,2002
4. The Evolution of the Biosphere (translated by Budyko M.I., Lemeshko S.F., & Yanuta V.G.);Budyko,1986
5. Interannual covariability in Northern Hemisphere air temperatures and greenness associated with El Niño-Southern Oscillation and the Arctic Oscillation;Buermann;Journal of Geophysical Research,2003