Breshears D D,Cobb N S,Rich P M et al.,2005.Regional vegetation die-off in response to global-change-type drought.Proceedings of the National Academy of Sciences(USA),102(42):15144–15148.
 Chen J,Huang D M,Shiyomi M et al.,2007.Spatial heterogeneity and diversity of vegetation at the landscape level in Inner Mongolia,China,with special reference to water resources.Landscape and Urban Planning,82: 222–232.
 Chen J,J?nsson P,Tamura M et al.,2004.A simple method for reconstructing a high-quality NDVI time-series data set based on the Savitzky-Golay filter.Remote Sensing of Environment,91:332–344.
 Chen Xiaoqiu,Wang Heng,2009.Spatial and temporal variations of vegetation belts and vegetation cover degrees in Inner Mongolia from 1982 to 2003.Acta Geographica Sinica,64(1):84–94.(in Chinese)
 Dai Shengpei,Zhang Bo,Wang Haijun et al.,2011.Vegetation cover change and the driving factors over northwest China.Journal of Arid Land,3(1):25?33.
 Dai Z G,2010.Intensive agropastoralism:dryland degradation,the Grain-to-Green Program and islands of sustainability in the Mu Us Sandy Land of China.Agriculture,Ecosystems and Environment,138:249–256.
 Foley J A,Levis S,Costa M H et al.,2000.Incorporating dynamic vegetation cover within global climate models.
 Ecological Applications,10(6):1620–1632.
 Ganopolski A,Kubatzki C,Claussen M et al.,1998.The influence of vegetation–atmosphere–ocean interaction on climate during the mid-Holocene.Science,280(19):1916–1919.
 Gitelson A A,Kaufman Y J,Stark R et al.,2002.Novel algorithms for remote estimation of vegetation fraction.
 Remote Sensing of Environment,80(1):76–87.
 Gutman G,Ignatov A,1998.The derivation of the green vegetation fraction from NOAA/AVHRR data for use in numerical weather prediction models.International Journal of Remote Sensing,19(8):1533–1543.
 Horion S,Cornet Y,Erpicum M et al.,2013.Studying interactions between climate variability and vegetation dynamic using a phenology based approach.International Journal of Applied Earth Observation and Geoinformation,20:20–32.
 Hu Z M,Li S G,Dong J W et al.,2012.Assessment of changes in the state of the rangelands of Inner Mongolia, China between 1998 and 2007 using remotely sensed data.The Rangeland Journal,34:103–109.
 Jiang G M,Han X G,Wu,J G,2006.Restoration and management of the Inner Mongolia grasslands require a sustainable strategy.Ambio,35:269–270.
 Jiang Z,Huete A R,Chen J et al.,2006.Analysis of NDVI and scaled difference vegetation index retrievals of vegetation fraction.Remote Sensing of Environment,101:366–378.
 John R,Chen J Q,Lu N et al.,2008.Predicting plant diversity based on remote sensing products in the semi-arid region of Inner Mongolia.Remote Sensing of Environment,112:2018–2032.
 Kelly A E,Goulden M L,2008.Rapid shifts in plant distribution with recent climate change.Proceedings of the National Academy of Sciences(USA),105(33):11823–11826.
 Li Ning,Gu Wei,Du Zixuan et al.,2006.Soil water content observations under different soil classification in central and east Inner Mongolia of China.Advance in Earth Science,21(2):151–156.(in Chinese)
 Li X L,Yuan Q H,Wan L Q et al.,2008.Perspective on livestock production systems in China.The Rangeland Journal,30:211–220.
 Li Yunpeng,Na Risu,Li Pengtao et al.,2006.Remote sensing monitoring of grassland degradation and climate causes in Hulun Buir Grassland.Acta Agriculturae Boreali-Sinica,21(suppl.1):56–61.(in Chinese)
 Long Huiling,Li Xiaobing,Wang Hong et al.,2010.Net primary productivity(NPP)of grassland ecosystem and its relationship with climate in Inner Mongolia.Acta Ecologica Sinica,30(5):1367–1378.(in Chinese)
 Matthews H D,Weaver A J,Meissner K J et al.,2004.Natural and anthropogenic climate change:Incorporating historical land cover change,vegetation dynamics and the global carbon cycle.Climate Dynamics,22:461–479.
 Ma Yuling,Yu Weihong,Fang Xiuqi,2004.Change of grass growth in the Hulun Buir steppe in response to global warming.Arid Land Geography,27(1):29–34.(in Chinese)
 Miao C Y,Yang L,Chen X H et al.,2012.The vegetation cover dynamics(1982–2006)in different erosion regions of the Yellow River Basin,China.Land Degradation&Development,23:62–71.
 Parmesan C,Yohe G,2003.A globally coherent fingerprint of climate change impacts across natural systems.
 Pei S F,Fu H,Wan C G,2008.Changes in soil properties and vegetation following exclosure and grazing in degraded Alxa desert steppe of Inner Mongolia,China.Agriculture,Ecosystems and Environment,124:33–39.
 Peng J,Liu Y H,Shen H et al.,2012.Vegetation coverage change and associated driving forces in mountain areas of Northwestern Yunnan,China using RS and GIS.Environmental monitoring and assessment,184:4787–4798.
 Qi J G,Chen J Q,Wan S Q et al.,2012.Understanding the coupled natural and human systems in dryland East Asia.Environmental Research Letters,7(1):015202.
 Qu Cuiping,Guan Dexin,Wang Anzhi et al.,2009.Relationships between Horqin meadow NDVI and meteorological factors.Chinese Journal of Applied Ecology,20(1):58–64.(in Chinese)
 Sun Yanling,Guo Peng,Yan Xiaodong et al.,2010.Dynamics of vegetation cover and its relationship with climate change and human activities in Inner Mongolia.Journal of Natural Resources,25(3):407–414.(in Chinese)
 Walker B,Steffen W,1997.IGBP Science No.1:A synthesis of GCTE and Related Research.Stockholm:IGBP,1–24.
 Wang Junbang,Tao Jian,Li Guicai et al.,2010.Monitoring inter-annual vegetation variation in middle Inner Mongolia through MODIS NDVI.Journal of Geo-information Science,12(6):835–842.(in Chinese)
 Xu Xu,Li Xiaobing,Liang Hanwei et al.,2010.Change in vegetation coverage and its relationships with climatic factors in temperate steppe,Inner Mongolia.Acta Ecologica Sinica,30(14):3733–3743.(in Chinese)
 Zeng X,Rao P,2003.Interannual variability and decadal trend of global fractional vegetation cover from 1982 to 2000.Journal of Applied Meteorology,42:1525–1530.
 Zhang Baoqing,Wu Pute,Zhao Xining,2011.Detecting and analysis of spatial and temporal variation of vegetation cover in the Loess Plateau during 1982–2009.Transactions of the CSAE,27(4):287–294.(in Chinese)
 Zhang Geli,Xu Xingliang,Zhou Caiping et al.,2011.Responses of grassland vegetation to climatic variations on different temporal scales in Hulun Buir Grassland in the past 30 years.Journal of Geographical Science,21(4): 634–650.
 Zhang Xuezhen,Dai Junhu,Ge Quansheng,2012.Spatial differences of changes in spring vegetation activities across eastern China during 1982–2006.Acta Geographica Sinica,67(1):53–61.(in Chinese)