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Investigation of Long-Term Roving Artisanal and Small-Scale Gold Mining Activities Using Time-Series Sentinel-1 and Global Surface Water Datasets

Author

Listed:
  • Satomi Kimijima

    (Research Institute for Humanity and Nature, Kyoto 603-8047, Japan)

  • Masayuki Sakakibara

    (Research Institute for Humanity and Nature, Kyoto 603-8047, Japan
    Graduate School of Science & Engineering, Ehime University, Matsuyama 790-8577, Japan)

  • Masahiko Nagai

    (Graduate School of Science and Technology for Innovation, Yamaguchi University, Ube 755-8611, Japan
    Center for Research and Application of Satellite Remote Sensing, Yamaguchi University, Ube 755-8611, Japan)

Abstract

Artisanal and small-scale gold mining (ASGM) is a significant source of gold production globally despite the sector being informal and illegal. The rapid increase in the number of roving mining camps has negatively impacted the surrounding environment; however, the formation and transformation of roving mining camps have not been well studied. This study investigated the long-term trends and significant hotspots of roving camp-type ASGM (R-C-ASGM) in Katingain Regency, Central Kalimantan Province, Indonesia, from 1988 to 2020 using remotely sensed data, including Sentinel-1 time-series, global surface water (GSW), and world landcover datasets. Results show that several active R-C-ASGM sites existed in the Galangan and Kalanaman areas in 2017/2018. According to the GSW dataset, the Galangan area was estimated to be formed earlier, whereas the Kalanaman areas were recently formed and were associated with the Kalanaman river expansion. Notably, the center of Galangan was still a significant R-C-ASGM hotspot. The findings of this study broaden our understanding of R-C-ASGM transformation and identify significant R-C-ASGM hotspots over a long period. This study contributes to the development of timely and appropriate interventions for strengthening environmental governance.

Suggested Citation

  • Satomi Kimijima & Masayuki Sakakibara & Masahiko Nagai, 2022. "Investigation of Long-Term Roving Artisanal and Small-Scale Gold Mining Activities Using Time-Series Sentinel-1 and Global Surface Water Datasets," IJERPH, MDPI, vol. 19(9), pages 1-13, May.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:9:p:5530-:d:807548
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    References listed on IDEAS

    as
    1. Satomi Kimijima & Masayuki Sakakibara & Masahiko Nagai, 2021. "Detection of Artisanal and Small-Scale Gold Mining Activities and Their Transformation Using Earth Observation, Nighttime Light, and Precipitation Data," IJERPH, MDPI, vol. 18(20), pages 1-12, October.
    2. Satomi Kimijima & Masayuki Sakakibara & Masahiko Nagai, 2022. "Characterizing Time-Series Roving Artisanal and Small-Scale Gold Mining Activities in Indonesia Using Sentinel-1 Data," IJERPH, MDPI, vol. 19(10), pages 1-14, May.
    3. Saldarriaga-Isaza, Adrián & Villegas-Palacio, Clara & Arango, Santiago, 2013. "The public good dilemma of a non-renewable common resource: A look at the facts of artisanal gold mining," Resources Policy, Elsevier, vol. 38(2), pages 224-232.
    4. Abel Kinyondo & Chris Huggins, 2021. "Promoting environmental sustainability in the artisanal and small-scale mining sector in Tanzania," WIDER Working Paper Series wp-2021-119, World Institute for Development Economic Research (UNU-WIDER).
    5. Carlos Mestanza-Ramón & Jefferson Cuenca-Cumbicus & Giovanni D’Orio & Jeniffer Flores-Toala & Susana Segovia-Cáceres & Amanda Bonilla-Bonilla & Salvatore Straface, 2022. "Gold Mining in the Amazon Region of Ecuador: History and a Review of Its Socio-Environmental Impacts," Land, MDPI, vol. 11(2), pages 1-22, February.
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    1. Satomi Kimijima & Masayuki Sakakibara & Masahiko Nagai, 2022. "Characterizing Time-Series Roving Artisanal and Small-Scale Gold Mining Activities in Indonesia Using Sentinel-1 Data," IJERPH, MDPI, vol. 19(10), pages 1-14, May.

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