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3 "Euigeun Song"
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Research of Cluster of Trees in Mt. Geumbyeong, Sejong-si Using Remote Exploration Technology(2020-2021)
Kihyun Kim, Euigeun Song, Jung-Hyun Lee, Nam-Shin Kim
GEO DATA. 2023;5(4):347-354.   Published online December 27, 2023
DOI: https://doi.org/10.22761/GD.2023.0045
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AbstractAbstract PDF
Korea consists of 63% forested land, more than twice the global average (31%). Despite ongoing reforestation efforts since the initiation of erosion contron and greening project in 1973, many of the species planted during that plan were nonnative, such as Pinus rigida and Robinia pseudoacacia. The study area, Sejong City, is undergoing various development activities. Given the anticipated influx of nonnative species and the reduction of plant biodiversity, accurate survey and analysis are essential for the conservation of Sejong City. In recent years, remote sensing techniques have been utilized as an alternative to traditional vegetation surveys. Remote sensing employs hyperspectral imagery, and LiDAR, allowing for faster and more accurate data collection and analysis without direct on-site access. This study utilized remote sensing technologies, including hyperspectral imagery and LiDAR, to collect forest resource information in Mt. Geumbyeong, Sejong City. The area around Mt. Geumbyeong, is characterized by Quercus acutissima, Robinia pseudoacacia, and Pinus rigida. In total, there are 19 species, with 43,657 individual trees, an average height of 16.91 m, an average breast height diameter of 38.85 cm, and an average age of 68.99 years. The aim is to provide fundamental data for forest management, urban forestry, and restoration efforts amid various disturbances, such as development activities, in the area. Subsequent and ongoing data collection through additional surveys and environmental assessments in the vicinity would enable the analysis of species-specific growth rates, the impact of disturbance factors, forest management, and health assessments over multiple years.
The Integrated Dataset of Cat (Felis catus) Roadkill by Korea Roadkill Observation System
Sooahn Heo, Il Ryong Kim, Sehee Kim, Hanbi Lee, Euigeun Song
GEO DATA. 2023;5(4):298-303.   Published online December 22, 2023
DOI: https://doi.org/10.22761/GD.2023.0042
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AbstractAbstract PDF
The incidence of roadkill and habitat fragmentation caused by human development and road networks is on the rise. Cats primarily consume artificial food and engage in hunting near urban areas. Their numbers have an impact on the ecosystem, and cat roadkill incidents are also prevalent. In South Korea, roadkill observations are conducted by the road management agency and the Korea Roadkill Observation System. Over a 3-year period, the number of cat roadkill incidents resulted in 19,973 recorded cases, and the highest rate was in Busan Metropolitan City. Cat roadkill incidents were most prevalent during October and November. Also When analyzed at the local government level, Dangjin-si, Yangpyeong-gun, and Busan Metropolitan City exhibited the highest concentrations. This research offers essential insights for managing the cat population and mitigating cat roadkill occurrences.
Investigation of Wildlife Crossing Structures in South Korea
Euigeun Song, Sooahn Heo, Il Ryong Kim, Sehee Kim, Hanbi Lee
GEO DATA. 2023;5(4):273-276.   Published online December 22, 2023
DOI: https://doi.org/10.22761/GD.2023.0041
  • 383 View
  • 31 Download
AbstractAbstract PDF
Roads, railways and infrastructure are constructed with consideration of their environmental impacts, especially habitat fragmentation. Wildlife crossing structures increase the permeability of roads and other linear infrastructures for wildlife by allowing animals to safely cross under or over roads and by reducing the risk of wildlife-vehicle collosions. We investigated the location and type of 564 wildlife crossing structures in South Korea. Between April and October 2023, we identified 365 overpasses and 199 underpasses of wildlife crossing structures respectively. Gyeonggi-do and Gyeongsangbuk-do had the largest number of wildlife crossing structures. This study can provide basic information for the effective management of wildlife crossing structures.

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