Analysis of Ecological Environment in the Shanxi Section of the Yellow River Basin and Coal Mining Area Based on Improved Remote Sensing Ecological Index.

The mean NRSEI values of the impact zones from the inside to the outside obviously show an increasing trend, and when the buffer zone radius is within 6 km, the mean NRSEI value rises faster, and when the buffer zone radius is increased from 6 km to 10 km, the rising trend of the curve tends to flatten out gradually.

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The scatter plot for the period of 2003–2012 ( Figure 4 a) demonstrates a strong correlation between RSEI and NRSEI, with a Pearson correlation coefficient of 0.959 and the R2 value of 0.921, indicating a highly significant linear relationship.

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