기후변화 대응 지피식물의 식재 및 관리를 위한 침수 내성 평가 = Assessment of Flood Resilience for Planting and Management of Cover Plants in Response to Climate Change

다국어 초록 (Multilingual Abstract)

In urban areas, the frequency of abnormal weather phenomena and various environmental issues is increasing due to climate change. To enhance urban resilience, there is a growing focus on nature-based solutions. Given the close relationship between vegetation and natural processes, there is a demand for plant materials that exhibit strong resilience to environmental stress. This study aimed to evaluate the flood tolerance of 47species of cover plants, providing basic data for the selection of garden plant materials. The target plants were completely submerged up to the shoot for 3 and 7days. Subsequently, they were managed using conventional methods, and their growth was observed over a 4-week period. Flood tolerance was categorized into 5groups based on changes in plant appearance and differences in the S/R ratio (Shoot/Root ratio) between the control and treatment groups. Group A, consisting of 28species such as ‘Ligularia Fischeri’, showed no changes in appearance, and the S/R ratio was 0.8-1.2 times, indicating that they were not significantly affected by flooding. Notably, 17species in Groups B, C, D, and E exhibited distinct changes in appearance and S/R ratio due to flooding. Among them, four species, including 'Dendranthema zawadskii', displayed significant changes in appearance, with an S/R ratio four times that of the control group (Group C). Additionally, 'Aruncus dioicus' experienced complete withered (Group E). Based on these results, it is appropriate to consider plants in Group A when selecting plant materials that can withstand flooding.

국문 초록 (Abstract)

도시 내 기후변화로 인한 이상 기상 현상과 함께 다양한 환경문제의 발생 빈도가 높아지고 있다. 도시의 회복력 향상을 위해서 자연기반해법이 대두되며, 이는 식물의 생육과 밀접한 관련이 있으므로 환경 스 트레스에 회복력이 강한 식물 소재가 요구되고 있다. 본 연구는 식물 소재 중 지피식물 47종을 대상으로 침수 내성을 평가하여 식재 및 관리를 위한 기초자료로 활용하고자 수행되었다. 시험 식물을 3일 및 7일 간 지제부까지 완전히 침수시킨 후 관행의 방법으로 관리하여 생육 변화를 4주간 관찰하였다. 식물의 외관 변화와 대조구와 처리구간의 S/R율(Shoot / Root ratio)차이에 따라 내침수성을 5개 집단으로 구분 하였다. Group A는 ‘곰취’등 28종의 식물로 외관 변화가 없으며, 침수에 의한 영향을 받지 않는다. Group B, C, D 및 E의 17종은 침수에 의한 외관 변화나 S/R율의 차이가 뚜렷이 확인되었다. 특히 ‘구절초’등 4종은 외관의 변화가 뚜렷하고 대조구와 처리구간 S/R율이 4배 수준이며(Group C), ‘눈개승마’는 지상 부가 완전히 고사하였다(Group E). 따라서 침수에 대응한 식재 계획에서는 Group A의 식물을 이용하는 것이 적합할 것으로 판단된다.

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