GEO DATA

Data Articles

A Field Imagery and Measurement Dataset for Grain-size Analysis of Riverbed Gravels in the Mid-Geum River: Hye-Yeon Yoon, Jangsoo Kim, Jaejin Yu; GEO DATA. 2025;7(4):730-738. Published online December 30, 2025; DOI: https://doi.org/10.22761/GD.2025.0042

290 View
10 Download

Abstract PDF: This study constructed and released a field imagery and measurement dataset for analyzing the grain size of riverbed gravels in selected point-bar areas of the mid-reach of the Geum River, Korea. The survey methodology included drone imaging, ground control point surveying, and image preprocessing. The dataset comprises high-resolution 1×1 m orthomosaic images of quadrats and corresponding field-measured grain-size data for 103 gravel samples. These data can serve as training and validation datasets for automating gravel grain-size analysis and enable quantitative comparisons of sedimentary environmental changes through periodic monitoring. However, the dataset was constructed from a single quadrat and therefore does not fully capture the spatial variability of the entire point bar. Expanding the dataset by installing additional quadrats in future studies would enhance its representativeness and enable broader applications in river management, restoration planning, and habitat assessment.

Analysis of Area Changes in Ecological and Natural Map Grades between 2007 and 2025: Focusing on Map Sheets Covering Border Region: Hyosun Leem, So-Young Hwang, Hye-Yeon Yoon; GEO DATA. 2025;7(4):347-360. Published online December 11, 2025; DOI: https://doi.org/10.22761/GD.2025.0039

492 View
14 Download

Abstract PDF: This study analyzed changes in the grades of the Ecological and Natural Map across 36 map sheets, including border regions, between 2007 and 2025. Variations in area by grade were influenced by the survey data available at the time of map compilation, differences in evaluation criteria, and improvements in survey precision. In particular, border regions exhibited a marked increase in separately managed zones, reflecting the application of conservation-oriented policies from an ecological perspective. These findings can serve as a basis for formulating conservation and management policies for border regions and for developing ecosystem management strategies tailored to local environmental conditions.

Area Analysis by Grade and Province of the Ecology and Nature Map (2022-2025): Hye-Yeon Yoon, Wooseok Oh; GEO DATA. 2025;7(3):123-136. Published online September 4, 2025; DOI: https://doi.org/10.22761/GD.2025.0017

1,061 View
73 Download

Abstract PDF: In this study, we analyzed the changes in area by province and grade in the Ecology and Nature Map, which was published through a periodic public notice from 2022 to 2025. The results of the analysis showed that the area of each province and grade did not change significantly, indicating a generally stable trend, but only a few provinces showed small increases and decreases in area. This means that the ratings of the Ecology and Nature Map are not subject to rapid changes in the short term and are based on consistent evaluation criteria and procedures. The publicly available data allows users who have difficulty using Geographic Information System (GIS)-based spatial data to intuitively access area information by grade. In addition, the change in area by grade was compared by year to show the potential for use in the field of public administration and environmental planning.

Preparation an Ecological Map Using Data from the Third Survey on National Environment: Eui-Jeong Ko, Taeho Kang, Hye-Yeon Yoon; GEO DATA. 2024;6(4):290-297. Published online December 19, 2024; DOI: https://doi.org/10.22761/GD.2024.0130

761 View
37 Download
1 Citations

Abstract PDF

In this study, we created a map to present the results of the third survey on national environment, following the ecological and natural map guidelines established by law. For the terrestrial areas of the Republic of Korea, we conducted three assessments, vegetation, landform, and endangered species, at a national scale. The results yielded an ecological map covering 99,138.5 km². The map showed the area distribution of different grades as follows: 11.3% for grade 1, 31.4% for grade 2, and 57.3% for grade 3. Specifically, within grade 1, vegetation covered 90.5% of the area, endangered species covered 9.7%, and landform covered 1.3% (including overlapping areas). This map provides detailed information including habitats of endangered species that were previously inaccessible to the public. Additionally, it offers insights into management areas with separately managed zone that could not be identified in existing ecological and natural maps.

Citations

Citations to this article as recorded by

Area Analysis by Grade and Province of the Ecology and Nature Map (2022-2025)
Hye-Yeon Yoon, Wooseok Oh
GEO DATA.2025; 7(3): 123. CrossRef

Original Paper

Spatial Distribution Status of Landform in 1st Grade Area of Ecology and Nature Map: Hye-Yeon Yoon, So-Young Hwang, Hyun-Su Park; GEO DATA. 2024;6(2):87-99. Published online June 27, 2024; DOI: https://doi.org/10.22761/GD.2024.0010

2,767 View
91 Download
4 Citations

Abstract PDF

In this study, spatial distribution analysis was conducted on the landforms that appear within the 1st grade area using the ecology and nature map of 2023. As a result, a total of 97 landforms including tidal flat and incised meander were identified as unit landforms, and a total of 1,490 sites were distributed. The spatial distribution by administrative region was highest in Gangwon-do with 273 sites (12.8%), and by unit landform, cliff (173 sites), stream cliff (129 sites), and sea cliff (100 sites) were the most distributed. These landforms are cliffs found in mountainous, riverine, and coastal areas, respectively, and are characterized by their high geomorphological conservation value due to their large scale and geometric shape compared to other terrains. In terms of spatial distribution by landform type, stream landforms (501 sites, 33.6%) accounted for the largest proportion, and there were 24 units landforms. The results obtained can be utilized for future designation of expanded ecosystem protection areas or ecosystem monitoring surveys, along with continued landform conservation.

Citations

Citations to this article as recorded by

Potential Habitat and Priority Conservation Areas for Endangered Species in South Korea
Soyeon Park, Hyomin Park, Sangdon Lee
Animals.2025; 15(8): 1158. CrossRef
Area Analysis by Grade and Province of the Ecology and Nature Map (2022-2025)
Hye-Yeon Yoon, Wooseok Oh
GEO DATA.2025; 7(3): 123. CrossRef
Analysis of Area Changes in Ecological and Natural Map Grades between 2007 and 2025: Focusing on Map Sheets Covering Border Region
Hyosun Leem, So-Young Hwang, Hye-Yeon Yoon
GEO DATA.2025; 7(4): 347. CrossRef
Preparation an Ecological Map Using Data from the Third Survey on National Environment
Eui-Jeong Ko, Taeho Kang, Hye-Yeon Yoon
GEO DATA.2024; 6(4): 290. CrossRef

First
Prev
Page of 1
Next
Last

Search