The Monitoring of Rare Earths Mining from the Gannan Area of Southern China Using Remote Sensing Technology
Résumé
The weathering crust Elution-deposited Rare Earth is the peculiar and
valuable source in China. The greatly mining activities in the south of
GanZhou(Gannan) were occurred disorderly and illegally using the
traditional extraction way, which brought out the dreadful environmental
influence. In this study, the SPOT5 multi-spectral data was used to
recognize and classify the destroyed land from mining activity. It was
found that the most mining areas were located dispersedly, covered the
area of 60.97km2 in total with 524 sites, which accounted for 3.03% of
the whole study area. There were 513 patches of destroyed area less than
1 km2 distributed in the southwest of the study area. The results
indicated that the mining integration should be concerned in this region
and mining plan for further environmental protection.
Domaines
Informatique [cs]Origine | Fichiers produits par l'(les) auteur(s) |
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