Analysis on the Change Trend of Surface Vegetation Coverage in Fukang Mining Area of South Jungar Coalfield

In order to understand the change and trend of surface vegetation in Fukang Mining Area of South Jungar Coalfield, the normalized vegetation index method was used to invert Landsat remote sensing images, and the four levels of vegetation coverage area were obtained. The grey prediction GM(1, 1) model was used to predict and analyze its trend. The results show that from 2007 to 2017, the vegetation coverage area of level 1 and level 2 increases first and then decreases; the vegetation coverage area of level 3 and level 4 shows an opposite trend. The vegetation distribution in the mining area is significantly affected by the surface rivers in the area, the vegetation coverage area of level 4 are relatively concentrated along the river in the mining area. The results of grey prediction GM(1, 1) model shows that:from 2019 to 2027, the vegetation coverage area of level 2 will increase year by year, while that of level 1, level 3 and level 4 will decrease year by year.