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Analysis of Changes in the Extent of Inland Water Ecosystems Over the Past 30 Years Using Land Cover Maps

  • Journal of Environmental Impact Assessment
  • Abbr : J EIA
  • 2024, 33(6), pp.431-439
  • Publisher : Korean Society Of Environmental Impact Assessment
  • Research Area : Engineering > Environmental Engineering
  • Received : November 26, 2024
  • Accepted : December 9, 2024
  • Published : December 31, 2024

Tae-Young Choi 1 Hee-Jin Moon 1 Gum-Sung Cheon 1 Ji-Min Lee 1

1국립생태원

Accredited

ABSTRACT

This study quantitatively analyzed the land cover changes in inland water ecosystems over the past 30 years to identify long-term trends and major causes of change. Using the Ministry of Environment’s land cover classification data, changes in the area of inland waters from 1990 to 2020 were analyzed nationwide and by major river basins. The results show that over the past 30 years, 67.5% of the inland water area nationwide has been maintained, 32.5% has been converted to other land cover types and lost, and 55.0% has been newly created, resulting in a net increase of 22.4% in the inland water area compared to the past. These changes were primarily attributed to new constructions such as dams and weirs, as well as losses due to urbanization. This study provides valuable insights for the conservation and management of inland water ecosystems and serves as a foundational reference for long-term ecosystem change studies.

Citation status

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