nter-annual Changes in Eurasian Continent NDVI and Its ensitivity to the Large-scale Climate Variations in the Last 20 Years The variations of NDVI and the relation with climate in hilly and gully region of Northern Yan’an Evaluation of remote sensing extraction methods for vegetation phenology based on flux tower net ecosystem carbon exchange data. Reconstruction of regional NDVI using tree-ring width chronologies in the Qilian Mountains, northwestern China Phenological change of main vegetation types along a North-South Transect of Eastern China Satellite-based Studies on Large-Scale Vegetation Changes in China