Changing of EVI for main types of grassland in Qinghai province

The EVI are analyzed for the three types of nature grassland including alpine meadow, alpine steppe and temperate steppe in Qinghai, China, based on data from the satellite remote sensing of MODIS collected from 2002 to 2008. The result shows that the EVI varied seasonally as grassland growth, especially can be seen in alpine meadow.