Austin M P, Smith T M, 1989. A new model for the continuum concept. Vegetation, 83: 35–47.
 Chen X Q, Tan Z J, Schwartz M D et al., 2000. Determining the growing season of land vegetation on the basis of plant phenology and satellite data in northern China. International Journal of Biometeorology, 44: 97–101.
 Chen Xiongwen, Zhang Xinshi, Li Bailian, 2005. Influence of Tibetan Plateau on vegetation distributions in East Asia: A modeling perspective. Ecological Modelling, 181: 79–86.
 Dennison P E, Roberts D A, 2003. The effects of vegetation phenology on endmember selection and species map-ping in southern California chaparral. Remote Sensing of Environment, 87: 295–309.
 Editorial Board of the Vegetation Atlas of China, Chinese Academy of Sciences, 2001. Vegetation Atlas of China 1:1,000,000. Beijing: Science Press. (in Chinese)
 Fang J Y, Chen A P, Peng C H et al., 2001. Changes in forest biomass carbon storage in China between 1949 and 1998. Science, 292: 2320–2322.
 Fang Jingyun, Piao Shilong, He Jinsheng et al., 2003. Increasing terrestrial vegetation activity in China, 1982–1999. Science in China (Series C), 33(6): 554–565. (in Chinese).
 Gao Zhiqiang, Liu Jiyuan, 2000. The study on driving factors and models of NDVI change based on remote sens-ing and GIS in China. Climatic and Environmental Research, 5(2): 155–164. (in Chinese)
 Grossman Y L, Ustin S L, Jacquemond S et al., 1996. Critique of stepwise linear regression for the extraction of leaf biochemistry information from leaf reflectance data. Remote Sensing of Environment, 56: 182–193.
 Hou Xueyu, 1988. Chinese Physical Geography?Phytogeography. Beijing: Science Press. (in Chinese)
 Lewis M M, 1998. Numeric classification as an aid to spectral mapping of vegetation communities. Plant Ecology, 136: 133–149.
 Li X R, Jia X H, Dong G R, 2006. Influence of desertification on vegetation pattern variations in the cold semi-arid grasslands of Qinghai-Tibet Plateau, Northwest China. Journal of Arid Environments, 64(3): 505–522.
 Liu Jiyuan, Zhuang Dafang, Ling Yangrong et al., 1998. Vegetation integrated classification and mapping using remote sensing and GIS technique in Northeast China. Journal of Remote Sensing, 2(4): 285–291. (in Chinese)
 Oppelt N, Mauser W, 2004. Hyperspectral monitoring of physiological parameters of wheat during a vegetation period using AVIS data. International Journal of Remote Sensing, 25: 145–159.
 Roberts D A, Green R O, Adams J B, 1997. Temporal and spatial patterns in vegetation and atmospheric proper-ties from AVIRIS. Remote Sensing of Environment, 62: 223–240.
 Shen Yuancun, Xiang Liping, 2001. The Physical Geography of Qinghai Province. Beijing: China Ocean Press. (in Chinese)
 Sun Hongyu, Wang Changyao, Niu Zheng et al., 1998. Analysis of the vegetation cover change and the relation-ship between NDVI and environmental factors by using NOAA time series data. Journal of Remote Sensing, 2(3): 205–210. (in Chinese)
 Wang Genxu, Ding Yongjian, Wang Jian et al., 2004. Land ecological changes and evolutional patterns in the source regions of the Yangtze and Yellow rivers in recent 15 years. Acta Geographica Sinica, 59(2): 163–173. (in Chinese)
 Wei Yaxing, Wang Liwen, Wang Yimou, 2004. Using TM to monitor the desertification in West China. Bulletin of Soil and Water Conservation, 24(4): 47–50. (in Chinese)
 Yang Jianping, Ding Yongjian, Chen Rensheng, 2005. NDVI reflection of alpine vegetation changes in the source regions of the Yangtze and Yellow Rivers. Acta Geographica Sinica, 60(3): 467–478. (in Chinese)
 Zhang Baiping, Wu Hongzhi et al., 2006. Integration of data on Chinese mountains into a digital altitudinal belts system. Mountain Research and Development, 26(2): 163–171.
 Zhang Jun, Ge Jianping, Guo Qingxi, 2001. The relation between the change of NDVI of the main vegetational types and the climatic factors in the northeast of China. Acta Ecologica Sinica, 21 (4): 523–524. (in Chinese)
 Zheng Jingyun, Ge Quansheng, Hao Zhixin, 2002. Climate change impacts on plant phenological changes in China in recent 40 years. Chinese Science Bulletin, 47(20): 1582–1587. (in Chinese)