• Journal of the Korean Institute of Traditional Landscape Architecture
• /
• v.37 no.1
• /
• pp.41-55
• /
• 2019

The purpose of this study is to present the basic data for conservation and management of traditional landscape and ecological environment by surveying and analysing the vascular plants distributed in Gwnagneung, a royal tomb of the Joseon Dynasty. The results are as follows. The numbers of vascular plants were summarized as 446 taxa including 97 families, 274 genera, 384 species, 4 subspecies, 49 varieties and 9 forms. The planting species were 34 taxa including Ginkgo biloba L., Pinus koraiensis Siebold ＆ Zucc., Taxus cuspidata Siebold ＆ Zucc. and so forth. Exotic species such as Pterocarya stenoptera DC. and Magnolia obovata Thunb. need to be remove for traditional landscape management. The rare plants were 7 taxa including 2 taxa of CR(critically endangered), 2 taxa of VU(vulnerable) and 3 taxa of LC(least concerned). The Korean endemic plants were 8 taxa including Pseudostellaria coreana (Nakai) Ohwi, Chrysosplenium pilosum var. fulvum (N.Terracc.) Hara, Philadelphus schrenkii Rupr., Indigofera koreana Ohwi, Paulownia coreana Uyeki(planting), Weigela subsessilis (Nakai) L.H.Bailey, Aster koraiensis Nakai(planting) and Hosta minor (Baker) Nakai(planting). The specific plants by floristic region were 45 taxa including 2 taxa of grade V, 12 taxa of grade III, 9 taxa of grade II and 22 taxa of grade I. The naturalized plants were 25 taxa including Fallopia dumetorum (L.) Holub, Chenopodium ficifolium Smith, Amorpha fruticosa L., Galinsoga ciliata (Raf.) S.F.Blake and so forth. The target plants adaptable to climate change were 9 taxa including 1 taxon of endemic plant and 8 taxa of northern plants.

• Journal of Environmental Impact Assessment
• /
• v.30 no.4
• /
• pp.187-202
• /
• 2021

This study examined the effectiveness of wind corridor construction by analyzing the thermal environment, cold air generation, ventilation, and geographical characteristics to improve urban thermal environment and establish the basis for specialized strategy in Changwon-si, Gyeongsangnam-do. Using spatial analysis and remote sensing techniques, surface temperature, land cover and land use, wind field, and slope were measured and through this, a wind corridor analysis model was constructed. As a result of the analysis as of 2020, Changwon-si generally has land cover characteristics that are advantageous for the generation of cold air, but the temperature in most urban areas is the highest, and the temperature in areas such as north Changwon area, Jinbukmyeon, Ung-dong, and Ungcheon-dong are relatively high. There was a typical trend of high average wind speed in mountain regions and low average wind speed in urban areas. Accordingly, the north Changwon area, the former Changwon downtown area, the Hogye-ri and Pyeongseong-ri areas, and the Changpo Bay area are derived as vulnerable areas to thermal environment, and various measures to reduce temperature and improve air quality that the inflow of cold air into the area considering the characteristics of each area and securing wind ventilation between the surrounding mountains, reservoirs, and park areas were proposed.

• Korean Journal of Plant Taxonomy
• /
• v.51 no.2
• /
• pp.147-165
• /
• 2021

The flora of the vascular plants in Deoksesan Mt. and its adjacent areas, located at Inje-gun, Gangwon province, were surveyed for a total ten times from April of 2018 to July of 2020. The result of this survey revealed 457 taxa, consisting of 90 families, 287 genera, 404 species, 13 subspecies, 35 varieties, and 5 forms. Among them, 12 taxa were endemic plants to Korea, and 7 taxa were rare plants. Red list plants and those designated as controlled Korean biological resources, requiring special permission for export outside of the county, numbered 3 and 103 taxa, respectively. The floristic target species amounted to 83 taxa, specifically 8 taxa of grade IV, 26 taxa of grade III, 21 taxa of grade II, and 28 taxa of grade I. In addition, 14 taxa were classified as plants adaptable to climate change, and 4 taxa at their respective northern limits, first recorded in this study, were also investigated. Twenty-nine taxa of alien plants and 4 taxa of ecosystem disturbance species were also found in this area. Our results suggest that some species should be preserved and can serve as basic information with which to establish data on the preservation of resources, such as plant diversity and distributional changes on Deoksesan Mt.

• Smart Media Journal
• /
• v.11 no.5
• /
• pp.75-81
• /
• 2022

In order to respond to carbon neutrality and climate change in agriculture, agricultural machinery, which has been developed centered on internal combustion engines, needs to be converted to an electric-based technology that does not emit greenhouse gases. In this study, simulations for electric UTV suspension design were performed to reduce vibration and shock of electric UTV for agricultural use and to improve driving stability and control performance of the vehicle. The simulation was performed by dividing the tolerance load of the vehicle body and the loaded load state. The range of motion of the suspension spring of UTV is within 30% of the range of motion under condition B under tolerance, the displacement of the UTV suspension with full load is reduced from 264mm to 121mm, and the damping speed is 260mm/s to 300mm/s that it can be seen that the range of motion is within 60%. Suspension design of electric UTV for multi-purpose agricultural work is a very important factor for maintaining agricultural work ability in towing work such as tillage as well as driving and terrain adaptation. The results of this study can be usefully used to determine the spring parameters with the appropriate damping range so that the electric UTV can be used for various agricultural tasks.

• Journal of Korea Water Resources Association
• /
• v.55 no.10
• /
• pp.707-721
• /
• 2022

In this study, a state-of-the-art review on urban inundation simulation technology was presented summarizing major achievements and limitations, and future research recommendations and challenges. More than 160 papers published in major domestic academic journals since the 2000s were analyzed. After analyzing the core themes and contents of the papers, the status of technological development was reviewed according to simulation methodologies such as physically-based and data-driven approaches. In addition, research trends for application purposes and advances in overseas and related fields were analyzed. Since more than 60% of urban inundation research used Storm Water Management Model (SWMM), developing new modeling techniques for detailed physical processes of dual drainage was encouraged. Data-based approaches have become a new status quo in urban inundation modeling. However, given that hydrological extreme data is rare, balanced research development of data and physically-based approaches was recommended. Urban inundation analysis technology, actively combined with new technologies in other fields such as artificial intelligence, IoT, and metaverse, would require continuous support from society and holistic approaches to solve challenges from climate risk and reduce disaster damage.

• Korean Journal of Plant Resources
• /
• v.36 no.1
• /
• pp.91-99
• /
• 2023

Plus tree selection is the essential first step in a tree improvement program. This study was carried out to select plus trees of black locust (Robinia pseudoacacia L.) for tree improvement in Korea. The candidate plus trees of black locust were selected from twenty-one places in the four provinces (Gangwon, Gyeonggi, Chungcheong and Gyeongsang) following comparison selection. The trees were examined for qualitative and quantitative traits of economic interest like tree height (H), diameter at breast height (DBH), clear bole height (CBH), stem straightness (SS), crown size (CS) and disease resistance. The 64 selected trees showed higher quality in growth characteristics than control trees. Average of height, DBH, CBH, SS and CS were 20.5 m, 31.1 cm, 10.1 m, 1.2 and 5.2 m respectively. In particular, it was shown that the growth characteristics were higher in Chungcheong population. The superiority percentage of selected candidate plus trees of black locust over their respective check trees ranged from 7.3% to 18.9% in height, 20.0% to 40.6% in DBH, 32.8% to 73.5% in CBH, 42.9% to 55.2% in SS and -11.1% to 9.4% in CS, respectively. The selected black locust will be useful in future tree breeding programs based on their clonal and progeny performance.

• Journal of the Korean Association of Geographic Information Studies
• /
• v.26 no.1
• /
• pp.89-113
• /
• 2023

This study aimed to identify heat wave vulnerable areas and discuss spatial typology and policy directions through spatial coincidence analysis of heat wave damage. By utilizing the climate change vulnerability assessment of the Intergovernmental Panel on Climate Change (IPCC) and Spatial Statistics Comparison Analysis, this study examined cities, counties, and districts in South Korea for five years (2015-2019), including 2018, when the heat wave was most extreme. It was determined that the number of heat wave days (exposure) was the most impactful among various factors for heat wave vulnerability. Sensitivity and adaptive capacity to heat waves were found to vary according to regional characteristics. The relationship between heat wave vulnerability and damage was categorized into four types through spatial coherence. Hot to Hot and Cold to Cold types have a positive relationship between vulnerability and damage, while Hot to Cold and Cold to Hot types have a negative relationship. The findings suggest that since different types of regions have distinct characteristics and conditions, policies and research for improvement should be directed to address each region separately. This study may be used as basic data for establishing heat-related policies in the future, as it categorizes regions by considering both heat vulnerability and damage and examines the direction of response by type.

• Korean Journal of Environmental Biology
• /
• v.40 no.1
• /
• pp.11-24
• /
• 2022

This study aimed to investigate the flora of Jinjosan Mt. (Uljin-gun, Gyeongsangbuk-do). The vascular plants were surveyed 9 times between March 2019 and April 2020. The results of this survey revealed a total of 414 taxa comprising of 87 families, 274 genera, 365 species, 12 subspecies, 32 varieties, and 5 forms. Among them, 9 taxa were Korean endemic plants and 5 taxa were rare plants of Korea. In addition, the specific plants by floristic region were 66 taxa including 1 taxon of grade IV, 18 taxa of grade III, 24 taxa of grade II, and 23 taxa of grade I. Additionally, eight taxa were classified as plants adaptable to climate change. Thirty-one taxa were of alien plants and three taxa were of ecosystem disturbance species, which were also investigated. The percentage of naturalized plants species and the urbanization index were estimated to be 7.5% and 5.0%, respectively. Our results provide basic data on vascular plants flora, and will guide the conservation processes of plant resources such as plant diversity and distributional changes in Jinjosan Mt.

• Journal of Marine Life Science
• /
• v.3 no.2
• /
• pp.51-58
• /
• 2018

Variations in water temperature are known to affect almost every part of fish physiology. The rise in water temperature due to climate change can physically damage fish. This study was conducted to evaluate the health status of the Atlantic salmon (Salmo salar) at high water temperature (20℃) than the optimum water temperature (15℃). Liver tissue exerts important metabolic functions in thermal adaptation. Therefore, liver tissue was used in this study. The evaluation method is to develop the biomarker gene using NGS RNAseq analysis and to examine the expression pattern using RT-qPCR analysis. The NGS RNAseq analysis revealed 1,366 differentially expressed genes, among which 880 genes were increase expressed and 486 genes were decrease expressed. The biomarker genes are such as heat shock protein 90 alpha (Hsp90α), heat shock protein 90 beta (Hsp90β) and cytochrome P450 1A (CYP1A). The selected genes are sensitive to changes in water temperature through NGS RNAseq analysis. Expression patterns of these genes through RT-qPCR were similar to those of NGS RNAseq analysis. The results of this study can be applied to other fish species and it is considered to be useful industrially.

• Korean Journal of Plant Resources
• /
• v.36 no.4
• /
• pp.341-368
• /
• 2023

Distribution of plant resources in Mt. Baekseok located at Pyeongchang-gun, Gangwon-do, were surveyed for a total 17 times from April 2021 to September 2022. The result of this survey revealed 628 taxa, consisting of 99 families, 346 genera, 552 species, 20 subspecies, 49 varieties, 6 forms, and one hybrid. Among them, 21 taxa were endemic plants to Korea, 12 taxa were red list plants by the Ministry of Environment and 560 taxa were red list plants by the Korea Forest Service. The floristic target species amounted to 164 taxa, specifically one taxon of grade V, 20 taxa of grade IV, 52 taxa of grade III, 53 taxa of grade II, and 38 taxa of grade I. In addition, 34 taxa were classified as plants adaptable to climate change. 42 taxa of alien plants and 3 taxa of ecosystem disturbance species were also found in this area. Useful plants listed consists of 246 taxa (39.2%) of edible plants, 215 taxa (34.2%) of pasture plants, 187 taxa (29.8%) of medicinal plants, 75 taxa (11.9%) of ornamental plants and 22 taxa (3.5%) of timber plants, respectively.