Hyeyoung Choi

한국조경학회지(Journal of the Korean Institute of Landscape Architecture)

The new Hibiscus syriacus cultivar 'Samilhong' was developed to address the growing demand for compact, refined ornamental shrubs suitable for contemporary urban landscapes and container cultivation. Through controlled hybridization and successive selection, 'Samilhong' consistently exhibits a stable dwarf and compact growth habit, dense branching, and a well-proportioned canopy throughout its developmental stages, differentiating it from the paternal parent and control cultivar, 'Samchulli.' At five years of age, 'Samilhong' has a significantly reduced height (122.0 ± 5.7 cm) and a lower shape index (0.85 ± 0.09), indicative of restrained vertical growth and enhanced manageability. With regard to its leaf morphology, 'Samilhong' is characterized by longer, narrower leaves with more deeply lobed margins, contributing to fine-textured foliage. Distinctive floral characteristics comprise a smaller flower diameter, a more vivid and elongated red eye spot, and narrower, undulate petals with slight overlap (I-b), which collectively confer an intricate and graceful appearance compared with the compact floral form of 'Samchulli.' 'Samilhong' exhibits extended individual flower longevity of approximately 54 h, nearly three times that of 'Samchulli,' coupled with consistently prolific flower production. The new cultivar exhibits robust adaptability to diverse environmental conditions, including tolerance to heat, drought, and partial shade. It is readily propagated clonally via cuttings, maintaining genetic stability across generations. For the commercialization of 'Samilhong', plant variety protection in Korea was secured in 2015, European Community plant variety rights were granted in 2023, and a U.S. plant patent was approved in 2024. The cultivar has been introduced to the European market under the trade name 'Little Legends Pink.' This study records the first instance of a Korean-developed H. syriacus cultivar achieving simultaneous intellectual property protection in Korea, the United States, and Europe, thereby attesting to its substantial ornamental appeal, ecological resilience, and international market competitiveness as a premium cultivar for contemporary landscape applications.

한국조경학회지(Journal of the Korean Institute of Landscape Architecture)

This paper investigates the transformation potential of the Meethotamulla waste landfill in Sri Lanka into a “Living Landscape Museum Park” through landscape architectural strategies. Meethotamulla, once one of the largest unsanitary landfills in the country, operated for over three decades before collapsing in April 2017, resulting in significant loss of life and property damage. Post-collapse stabilisation measures by the Urban Development Authority in 2020—such as reshaping, soil capping, and leachate control—improved safety but fell short of international post-closure standards. The site remains unused, environmentally vulnerable, and socially disconnected. Drawing on global precedents (Nanjido Park, South Korea; Ariel Sharon Park, Israel; Freshkills Park, USA; Okhla Landfill, India), this study analyses adaptive design strategies applicable to the Meethotamulla context. A mixed-method approach integrates literature review, precedent analysis, and site-specific research to propose a master plan incorporating ecological restoration, cultural commemoration, public recreation, and environmental education. The design emphasises wetland systems, morphological landform strategies, and native planting to ensure long-term ecological resilience. The project offers one of the first comprehensive landfill-to-park frameworks in Sri Lanka, demonstrating how post-industrial landscapes can be rehabilitated to restore ecological function, reconnect urban communities, and inspire public stewardship.

Understanding how urban parks are utilized and perceived by the public is crucial for effective urban planning and management. This study introduces a novel dataset derived from Instagram, using 42,187 images tagged with #Seoul and #Park hashtags from 2017 to 2023. These images were filtered using InternLM-XComposer2, a Multimodal Large Language Model (MLLM), to confirm they depicted park scenes. GPT-4 then annotated the filtered images, resulting in 29,866 valid image annotations of physical elements, human activities, animals, and emotions. The dataset is publicly available at https://huggingface.co/datasets/RedBall/seoul-urban-park-analysis-by-llm.

한국조경학회지(Journal of the Korean Institute of Landscape Architecture)

본 연구는 “평택역 광장 조성 국제설계공모”를 통해 사람 중심 광장의 설계 방향을 제시하는것을 목적으로 삼았다. 시민들의 편의 및 보행 환경을 개선하고 주변 도시발전 및 재생계획과 통합적으로 연계될 수 있는 방향을 제시하고자 하였다. 현재 평택역 광장이 가진 문제점을 분석한뒤 평택 시민이 요구하는 문화체험의 광장, 선행연구와 사람 중심 도시 설계 원칙에서 중요시하는 보행 중심의 광장, 편의시설 및 녹지가 풍부한 광장, 상징성 및 장소성을 갖춘 광장을 조성하기 위해 네 가지 설계 전략을 수립하였다. 첫째, 현재 차량 동선으로 분절되어 있는 광장을 하나의 광장으로 통합하고 모든 차량의 접근을 광장의 경계로 배치하였다. 둘째, 지상 보행 연결을 통해 사람들이 광장에서 주변 지역으로 손쉽게 이동할 수 있도록 하였다. 셋째, 광장의 중앙을 비우고 실내 공간을 담은 캐노피를 둘러 사계절 다양한 활동이 가능하며, 평택시의 상징이 될 수 있도록 하였다. 넷째, 주변 지역으로 녹지 네트워킹이 가능하도록 숲과 수목을 주변과 연계하여 배치하였다. 본 논문을 통해 평택시의 발전을 견인했던 평택역 광장이 현재의 기능 중심 역할에서 벗어나 사람을 중심에 둔 사회적, 문화적 장소로 재활성화될 수 있는 가능성을 탐색하였다.

한국조경학회지(Journal of the Korean Institute of Landscape Architecture)

한국조경학회지(Journal of the Korean Institute of Landscape Architecture)