WHAT THE EVIDENCE SAYS
Sentinel-2 indices tracked 85 scars from a 2017 rainfall disaster over 2018–2026. Greenness increased fastest early then leveled; slope correlated with vegetation moisture and elevation with bare-soil indices. Circularity, aspect and curvature showed no significant explanatory effects in the models.
WHY IT MATTERS / OUR READ
Target persistent bare and low-moisture areas for field checks before assuming a uniform planting prescription. Monitor soil stability and community composition separately from optical cover.
CAVEATS / UNCERTAINTY
Satellite greenness is not native forest recovery or slope stabilization. The 85 included scars were a filtered subset of 335 and reflectance plateaus can reflect sensor saturation.
SOURCE
Cargnin et al. · Environmental Earth Sciences · Brazilian post-landslide monitoring
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