Landscape ecological risk assessment of an ecological area in the Kubuqi desert based on Landsat remote sensing data.

After simulation analysis, we find that when the grain size is 470m, there is a clear trend of regularity.

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Results manifest that: (1) Overall, from 2005 to 2021, its spatial distribution features of landscape ecological risk level are relatively-high and high in the middle, and gradually reduce in the north-south direction, as shown below: the relatively-low ecological risk areas are widely spread, and the overall risk index decrease from 0.1944 to 0.1940; the area of low and high-level ecological risk areas show a decreasing trend, which decrease by 5.0102 km 2 and 1.3132 km 2 respectively; the area of relatively-low, middle, and relatively-high-level ecological risk areas increase by 0.2655 km 2 , 3.7803 km 2 , and 2.4852 km 2 , respectively.

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