A Study on the Development of Topographical Variables and Algorithm for Mountain Classification

Choi, Jungsun; Jang, Hyunsoo; Shim, Woo Jin; Shim, Y. S.; Shin, Hyeshop; Lee, Seung-Jin; Park, Soo‐Jin

doi:10.16968/jkga.25.3.1

Cited by 4 publications

(3 citation statements)

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“…South Korea has a considerably high population density (25th on the global scale and 516/km 2 as of 2020) [71], with mountains constituting approximately 70% of the terrestrial land [74], and a land mass is characterized by differential land use characteristics to the east and west. The border area is the only terrestrial ecological axis in the east-to-west direction that has not been significantly impacted by rapid urbanization, making it a critical region for biodiversity conservation.…”

Section: Discussionmentioning

confidence: 99%

Establishing an Ecological Network to Enhance Forest Connectivity in South Korea’s Demilitarized Zone

Lim

2024

Land

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This investigation delineated an ecological network within South Korea’s Demilitarized Zone (DMZ) to enhance ecosystem functionality, with a focus on forest landscape connectivity. The study employed spatial autocorrelation analysis and the minimum cumulative resistance model to identify key source patches. These patches are vital for maintaining connectivity across various topographies and land uses in the DMZ. Morphological spatial pattern analysis in the DMZ’s forest area showed a variation in forest patch types. The core class, less affected by external influences, was more prevalent in the eastern part. In contrast, the edge class, influenced by different environmental boundaries, was dominant in the western part. A 452.36 km long ecological network was constructed, serving as an essential corridor linking habitats of endangered species. This network covers a total forest area of 730.17 km2, which includes an existing forest protection area of 165.84 km2 (22.7%). The study also identified 564.33 km2 (77.3%) of previously non-designated forest regions as potential conservation areas. This aims to significantly increase forest connectivity within the DMZ. The research highlights the effectiveness of spatial planning tools in promoting ecosystem integrity in politically sensitive and restricted-access areas.

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Section: Discussionmentioning

confidence: 99%

Establishing an Ecological Network to Enhance Forest Connectivity in South Korea’s Demilitarized Zone

Lim

2024

Land

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“…South Korea has a considerably high population density (25th on the global scale and 516/km 2 as of 2020) [54] with mountains constituting approximately 70% of the terrestrial land [57], and the land mass is characterized by differential land use characteristics to the east and west. The border area is the only terrestrial ecological axis in the east-to-west direction -that has not been signi cantly impacted by rapid urbanization, making it a critical region for biodiversity conservation.…”

Section: Discussionmentioning

confidence: 99%

Establishing an ecological network to enhance forest connectivity in the South Korea DMZ

Lim

Cho

2023

Preprint

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This study aimed to establish an ecological network to enhance ecosystem functions in the demilitarized zone (DMZ) of South Korea by improving connectivity of forest landscapes using spatial autocorrelation analysis and the minimum cumulative resistance model. We identified source patches critical for maintaining forest landscape connectivity. The ecological network was derived considering topography and land use of four regions comprising the study area. Morphological spatial pattern analysis was used to select source patches. Among all forest regions in the DMZ, the ratio of the core class was approximately 60%, accounting for the largest area; this was higher toward the east, while that of the edge class was higher toward the west. The average connectivity index (dPC) of core patches in the DMZ was 0.45. A final ecological network with a total length of 452.36 km connecting source patches for each region was derived, connecting the main habitats of the endangered species functioning as an ecological corridor. The total forest area corresponding to the network was 730.17 km2, and the designated forest protection area was 165.84 km2. From this, we identified 564.33 km2 of previously undesignated forest areas as candidates for protected forest areas to enhance forest connectivity in the DMZ.

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“…gov/) , ten hillside positions were designated for each tile based on classification undertaken at the unit of the mid-watershed 2 : 'summit', 'shoulder', 'backslope', 'footslope', and 'toeslope' (Figure 2) in 'mountainous' and 'non-mountainous' units. The distinction between 'mountainous units' and 'non-mountainous units' was made according to the topographic division framework presented by Choi et al (2018).…”

Section: Introducing Hillslope Position As a Means Of Classificationmentioning

confidence: 99%

‘Benefit Maximizing Routes’: Development and Evaluation Using the Historical Roads of Korea’s Joseon Dynasty (1392–1910)

Shim

Park

2022

Journal of Computer Applications in Archaeology

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Least cost paths (LCPs) have been widely used by archaeologists and geographers to reconstruct probable routes of movement within past landscapes using GIS-based modelling. By definition, LCP modelling is based on the premise that 'least cost' features as the primary factor in the decision-making of movement. It can be argued, however, that movement within the landscape was structured not only by the need to minimize costs but also by the desire to maximize benefits. This study introduces a new way of estimating terrain costs that can factor in this tendency towards 'benefit maximization' when modelling routes. This alternative methodology features a distinctive way of perceiving the landscape, which differs from the grid-based division of the landscape generally used in LCP modelling. The landscape is seen to be made up of ten different 'hillslope position units' (which are generic landscape units widely used in landscape evolution studies) and 'movement suitability' values are estimated for each of the hillslope position units. These values are then used to produce a 'hillslope position unit movement suitability' (HPMS) cost surface. The evaluation of the HPMS cost surface is undertaken by comparing HPMS-based routes and slope gradient-based LCPs against the historical roads of Korea's Joseon Dynasty . It is observed that HPMS-based routes demonstrate a greater degree of correspondence with historically confirmed routes, compared to slope gradient-based LCPs. The similarity between HPMS-based routes and historically confirmed routes is found to be greater in mountainous regions vis-à-vis non-mountainous regions. It is proposed that, by taking into account human desire to utilize beneficial landscapes, HPMS-based cost surfaces may result in modelled routes that are closer to actual past experiences.

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A Study on the Development of Topographical Variables and Algorithm for Mountain Classification

Cited by 4 publications

References 0 publications

Establishing an Ecological Network to Enhance Forest Connectivity in South Korea’s Demilitarized Zone

Establishing an Ecological Network to Enhance Forest Connectivity in South Korea’s Demilitarized Zone

Establishing an ecological network to enhance forest connectivity in the South Korea DMZ

‘Benefit Maximizing Routes’: Development and Evaluation Using the Historical Roads of Korea’s Joseon Dynasty (1392–1910)

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