Paper · 2026 · Journal of Degraded and Mining Lands Management

Examining the several vegetation indices values to estimate carbon stock at the mining reclamation area of PT. Adaro Indonesia, South Kalimantan

Dony Rachmanadi; Luthfan Meilana Nugraha; Dodik Choiron; et al.

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Open access · cc-by-nc

Abstract

Revegetation of coal mine reclamation areas contributes to environmental improvement by sequestering carbon through vegetation. This study aimed to estimate carbon stocks in reclaimed and post-mining areas of PT Adaro Indonesia using various vegetation indices to assess the areas' contribution to carbon sequestration and identify the most effective estimation method. Six vegetation indices—NDVI, RVI, SAVI, GNDVI, RDVI, and IPVI—were derived from drone-based multispectral imagery and combined with field sampling for enhanced accuracy. Carbon stock was calculated based on biomass, which correlates with tree size and other observable carbon pools. The results showed that, although the Tutupan site had lower vegetation diversity, it stored more carbon than the Paringin site. Among the indices tested, NDVI produced the most robust estimation model, demonstrating a high correlation and low standard error, indicating its strong predictive model for assessing carbon stocks in reclaimed mining lands.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. Read at the source ↗

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Claims 3

Observationobservedoriginal resultmeasured

Claim · model-written summary

The Tutupan site stored more carbon than the Paringin site.

Taxon
vegetatione1
Outcome
carbone1
Direction
moree1
Comparator
Paringin sitee1
Setting
Tutupan sitee1

Verbatim

e1

“although the Tutupan site had lower vegetation diversity, it stored more carbon than the Paringin site”

✓ located verbatim in the source · abstract, characters 678–780 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The Tutupan site had lower vegetation diversity.

Taxon
vegetatione1
Outcome
vegetation diversitye1
Direction
lowere1
Setting
Tutupan sitee1

Verbatim

e1

“although the Tutupan site had lower vegetation diversity, it stored more carbon than the Paringin site”

✓ located verbatim in the source · abstract, characters 678–780 · show in text ↑
Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

NDVI gave the most robust carbon stock estimation model among the vegetation indices tested.

Taxon
vegetatione1
Outcome
estimation modele2
Qualifier
high correlation and low standard errore2
Comparator
the indices testede3

Verbatim

e1

“although the Tutupan site had lower vegetation diversity, it stored more carbon than the Paringin site”

✓ located verbatim in the source · abstract, characters 678–780 · show in text ↑
e2

“NDVI produced the most robust estimation model, demonstrating a high correlation and low standard error”

✓ located verbatim in the source · abstract, characters 808–911 · show in text ↑
e3

“Among the indices tested”

✓ located verbatim in the source · abstract, characters 782–806 · show in text ↑