Abstract
Based on the GIS technology, NDVI indexes have been used as main data source in this paper. Spatiotemporal change principle have been analyzed in order to realize the vegetation cover spatial distribution and changing trend in eastern Jilin during the 10 years. The results show that the vegetation cover in eastern jilin, in the past 10 years, vegetation coverage is obviously the volatility of the whole the increasing trend, but change small scale, basically in a stable state. The areas with increased vegetation coverage is mainly distributed in the northeast and north, the areas with decreased vegetation coverage is mainly distributed in the southeast and southwest. The areas with increased vegetation coverage is more than the areas with the decreased vegetation coverage. Improvement of trends in the area are mainly distributed in the Yanbian area of eastern and southern, central Tonghua, Baishan area of Northwestern and other places, the trend of degradation in the region are mainly distributed in the eastern part of Jilin , the East Yanbian and southeastern Baishan region.And the areas with significantly changed vegetation coverage are comparatively small and scattered throughout the study area.
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