Study on EVI Change in the Changbai Mountain from 2000 to 2008

Based on the MODIS EVI 250 m resolution data,regional map and vegetation map,we analyzed the intra-annual and inter-annual variation of vegetation cover in Changbai Mountain by using the HANTS,imagery processing methods and statistical methods.Then further analyses were carried into different sub-regions and different vegetation types.The results show that: the vegetation variation trends are increased from 2000 to 2008 as a whole;the increase is particular obvious in summer;the EVI is much higher in the Helong Forestry Bureau and increased more rapidly in the Changbai Mountain National Reserve Bureau and Baihe Forestry Bureau than the nearby DPRK border area;though the EVI of the coniferous forest,grassland,marsh,betula ermanii forest and tundra are less than the broadleaf forest and mixed forest,the former grow faster than the later in vegetation cover.