The Spatiotemporal Evolution of Ecosystem Health and Its Driving Factors in Karst Rocky Desertification Areas A Case Study of Guizhou Province, China.

Moreover, since the EHI consistently showed an increasing trend throughout the study period in the research area, the EHI change values were categorized into three levels: Level I (0.06 < ΔEHI < 0.08), Level II (0.08 < ΔEHI < 0.1), and Level III (0.1 < ΔEHI < 0.13). 3.3 Spatial Autocorrelation Analysis Spatial autocorrelation analysis is used to measure the correlation and difference of a certain observation value in adjacent spaces, which is divided into global autocorrelation and local autocorrelation.

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