Research On Influencing Factors Of Ecological Suitability In Shendong Mining Area

The Shendong mining area is selected as the research object,and Landsat 4-5TM in2000,2005 and 2010 and Landsat 8OLI remote sensing images in 2015 and 2018 are selected.Based on ENVI and Arc GIS technology,principal component analysis methods,Kriging interpolation,and land use transfer matrix,the various ecological environmental impact factors are correlated and ranked,and the distribution of ecological suitability impact factors in the region is analyzed,and a brief summary Analysis and suggestions for reference in ecological space planning in this area.The main results are as follows:1.Correlation analysis of ecological suitability indicators in the study area showed that surface temperature and drought index,vegetation coverage and NDVI,as well as soil erosion modulus and soil erosion intensity grades all have extremely significant positive correlations.Principal component analysis shows that the main factors affecting the ecological suitability of Shendong mining area are vegetation coverage and soil erosion.By calculating the principal component comprehensive scores of 11 impact factors in 2000,2005,2010,2015,and 2018,the kriging interpolation rendering map is obtained in Arc GIS.Combining the spatial dynamic analysis map and the land use transfer matrix,it can be concluded that the ecological suitability factors of the Shendong mining area are mainly vegetation factors,followed by soil erosion factors.2.Through the analysis of the characteristics of land use types,it can be seen that the area of cultivated land and construction land is increasing year by year,the area of forest land,unused land and water area is decreasing year by year,and the area of grassland shows a fluctuating and rising trend.Analyze the factors that affect the score by combining the dynamic graph of score changes.3.Taking ecological priority as the premise and considering the suitability of the mining area from the perspective of ecological priority,the analysis of the ecological suitability influencing factors of the Shendong mining area is more environmentally friendly and ecological,providing a basis for the ecological suitability analysis of the mining area.