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Aeolian sand migration induced land degradation and desertification hotspots identification in the semi-arid rain shadow regions of Anantapur, India.

Badapalli Pradeep Kumar, Nakkala AB, Kottala RB, Pujari PS, Gugulothu S.

SCIENTIFIC REPORTS

https://doi.org/10.1038/s41598-025-31610-0 

This study used long-term satellite spectral data to assess land degradation in semi-arid parts of Anantapur District, Andhra Pradesh. By analyzing vegetation health (NDVI), soil texture (TGSI), salinity (NDSI), and land surface temperature (LST), we detected areas under growing environmental stress. The results show that vegetation loss, soil deterioration, heat stress, and aeolian sand migration are accelerating desertification, with about 192 km² identified as severe hotspots. The findings support targeted land restoration, improved soil–water management, and sustainable planning in fragile dryland ecosystems.

Fig. Study area location, geospatial workflow, and resulting land degradation hotspot map.

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