Impact of Land Use Change on the Habitat Quality Evolution in Three Gorges Reservoir Area, China.

Construction land is concentrated in the western region and along the river and shows a clear trend of expansion over time.

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During the study period, the AI showed a trend of decreasing, then increasing, and then decreasing, with a sharp decrease in AI after 2015, indicating that the landscape patches in the study area gradually separated and the ability of patches to aggregate weakened.

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Grassland shows a decreasing trend in all landscape pattern indices except PD, where LPI, AREA_MN, and LSI are significantly decreasing, indicating that grassland fragmentation is increasing, landscape dominance is decreasing, aggregation is weakening, and larger patches are divided.

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The HQ values were 0.7459, 0.7480, 0.7481, 0.7459, and 0.7396 in that order, showing an overall trend of increasing and then decreasing.

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