GEO DATA

Data Articles

Status of Mammals Entrapment in Open Irrigation Canals: Jiyoun Kim, Hanbi Lee, Kihyun Kim, Sehee Kim, Euigeun Song; GEO DATA. 2024;6(4):411-419. Published online December 31, 2024; DOI: https://doi.org/10.22761/GD.2024.0062

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Abstract PDF: Linear infrastructure such as roads, railways, and irrigation canals causes habitat fragmentation and disrupts wildlife movement, negatively impacting ecosystems. This study investigated the physical characteristics of 80 artificial structures across South Korea and analyzed the status of wildlife entrapment prevention facilities and mammal entrapment incidents within irrigation canals. The surveyed structures, including irrigation canals, drainage canals, and roadside ditches, had an average length of 2.57 km, width of 3.34 m, and height of 1.4 m. Most structures (88.8%) were concrete, while 11.3% were mixed concrete and earthen canals. Wildlife entrapment prevention facilities, including escape facilities, cross-movement structures, and avoidance guidance facilities, were installed at low rates. Mammals entrapment incidents were observed 620 cases, with Korean water deer (Hydropotes inermis) and common raccoon dog (Nyctereutes procyonoides) being the most frequently observed. Additionally, entrapment incidents involving the endangered Eurasian otter (Lutra lutra) and leopard cat (Prionailurus bengalensis) were also recorded. Escape facilities and guidance facilities showed no significant difference in the average occurrence rates of mammals, but the maximum occurrence rates were lower in sections where these facilities were installed. This study provides essential baseline data for policy development and management strategies aimed at mitigating wildlife entrapments and improving ecological connectivity in artificial linear infrastructure.

A Study on the Occurrence of Racoon Dog (Nyctereutes procyonoides) Roadkill Using the Korea Roadkill Observation System: Euigeun Song, Kihyun Kim, Sehee Kim, Hanbi Lee, Jiyoun Kim; GEO DATA. 2024;6(4):430-434. Published online December 31, 2024; DOI: https://doi.org/10.22761/GD.2024.0061

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Abstract PDF: Since industrialization, the pressure for development has increasingly intensified conflicts between wildlife and humans. Concerns have grown regarding the transmission of diseases by wildlife as carriers of zoonotic diseases, human casualties and economic losses due to roadkill incidents, and the decline in biodiversity. This study aims to provide fundamental data for resolving conflicts between raccoons and humans by analyzing the annual and monthly trends of raccoon roadkill incidents approved in the Korea Roadkill Observation System from 2019 to 2023. Over five years, 11,328 raccoon roadkill cases were approved, showing a rising trend in raccoon roadkill incidents each year. Monthly data revealed that October had the highest number of incidents, with 2,316 cases, and roadkill occurrences were found to be significantly higher during autumn and early winter. These findings are expected to serve as fundamental data for addressing future conflicts between raccoons and humans.

Original Papers

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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Abstract 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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Abstract 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

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Abstract 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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