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Ecological and Environmental Analysis for the Utilization Fallow Lands in Sorok Island as Wetlands

  • Journal of Environmental Impact Assessment
  • Abbr : J EIA
  • 2024, 33(6), pp.352-364
  • Publisher : Korean Society Of Environmental Impact Assessment
  • Research Area : Engineering > Environmental Engineering
  • Received : October 31, 2024
  • Accepted : December 9, 2024
  • Published : December 31, 2024

Seungwon Lee 1,  Kwangjin Cho 2,  Dukyeop Kim 1

1국립생태원
2국립생태원 생태평가연구실

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ABSTRACT

In this study, three fallow lands distributed in Sorokdo were selected as study sites to explore their potential utilization as wetlands. Research was conducted based on climate data, topography, historical aerial photographs, vegetation indices, and vegetation surveys. Through weather and topographical analyses, we examined whether the site possesses an environment and structure capable of retaining moisture. Additionally, historical aerial photographs, vegetation indices, and vegetation surveys were utilized to determine the successional stage of vegetation at the target site. The target sites were found to have a warm climate with relatively higher humidity compared to nearby regions. Topographically, the areas were found to have lower elevation and gentler slopes compared to the surrounding regions, suggesting their potential role as catchment zones that retain water flowing down from the mountains during rainfall. The vegetation survey identified four vegetation communities-Juncus decipiens community, Typha orientalis community, Juncus decipiens-Imperata cylindrica community, and Miscanthus sinensis-Imperata cylindrica community-comprising a total of 89 taxa, including 81 species across 36 families, 76 genera, 4 varieties, and 4 subspecies. A comparative analysis of historical aerial photographs, vegetation indices, and plant life forms revealed that the study sites have undergone vegetation succession after the cessation of agricultural activities between 1990 and 2008. Currently, the sites are dominated by Juncus decipiens communities, with a relatively high proportion of perennial plant species, indicating that they are in the mid-successional stage as wetlands.

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