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천연기념물 한란 보호구역의 개체군 구조 및 미세 서식처 선호성
신재권 ( Jae Kwon Shin ),구본열 ( Bon Youl Koo ),김한결 ( Han Gyeoul Kim ),권혜진 ( He Jin Kwon ),손성원 ( Sung Won Son ),이종석 ( Jong Seok Lee ),조현제 ( Hyun Je Cho ),배관호 ( Kwan Ho Bae ),조용찬 ( Young Chan Cho ) 한국하천호수학회 2014 생태와 환경 Vol.47 No.3
There are no population ecological research on the natural monument (No. 191) Jeju Cymbidium kanran in South Korea. In this study, we analyzed the population structure and fine-scale habitat affinity of C. kanran in Sanghyo-dong, Jejudo Island from Oct. 2013 to Feb. 2014. We observed total of 1,237 individuals (4,341 pseudobulbs) of C. kanran (989.6 population ha-1) within (1.25 ha) and only 17 (1.4%) individuals were inflorescent. In 60.9% of the entire populations, disease symptoms such as spots and blight leaves were observed. C. kanran populaton exhibited reverse-J shaped size distribution based on leaf area classes as individual size parameter. The three size related attributes of C. kanran (no. of pseudobulb rs=-0.159, no. of leaves rs=-0.148 and leaf arera rs=-0.114) and soil temperature revealed a negative relationship (p. 0.0001). Most of C. kanran (95.4%) were grown under Castamopsis cuspidata and spatially, C. kanran were strongly clumped at all distances. Population characteristics of C. kanran in the study area were likely originated from species habitat affinity and successional environment. Through this study, base line data for C. kanran`s habitat monitoring was established and conservation measures based on population characteristics were discussed.