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September 5, 2025New Countryside

Assessing the Environmental Impacts of Alluvial Gold Mining in Betare-Oya, Cameroon (2021–2025): An Integrated Remote Sensing and Ground-Truthing Approach

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Integrating remote sensing and field observations reveals significant environmental degradation in Betare-Oya.

A large increase in bare soil from alluvial gold mining was observed, with levels rising from 19.20% in 2021 to 38.23% in 2024.
Dense vegetation declined significantly, showing a decrease from 46.13% in 2021 to 42.34% in 2024 due to mining activities.
Land use/land cover changes indicated a conversion from forested areas to mining zones, with bare land increasing from 32.22% to 45.48%.
Field observations supported findings of coastal erosion and water pollution, highlighting the urgent need for improved mining regulation.

Zoum et al. (2025) studied this question.

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