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Differences in Phenological Phases of Plants Subsequent to Microclimate Change  

Jo, Hyun-Kil (Division of Forest Management and Landscape Architecture, Kangwon National University)
Ahn, Tae-Won (Environment & Regional Development Research Division, Gangwon Development Research Institute)
Publication Information
Korean Journal of Environment and Ecology / v.22, no.3, 2008 , pp. 221-229 More about this Journal
Abstract
This study observed and compared phenological changes in the spring for some native woody plants growing at Mt. Jumbong and Mt. Bongeui located at central districts of our country, and also inquired into the phenological difference subsequent to microclimate change by measuring its related environment factors as well. The average air temperature at a survey point of Mt. Jumbong from January to May in 2004 was $4.1^{\circ}C$ lower than that of Mt. Bongeui. As for the soil temperature in April by a survey section within Mt. Jumbong, the soil temperature on the west and northwest slopes was $1.8^{\circ}C$ and $4.4^{\circ}C$ lower than that of the south slope, respectively. It was found that the earliest tree species in a flowering period was Lindera obtusiloba among the sample woody plants and its flowering began in late March at Mt. Bongeui and in early April at Mt. Jumbong. The flowering of the same species began faster on the south slope than the west or north slope; in case of the tree species flowering in early spring, there appeared about two-week interval between the survey sites. Likewise, leafing time of the same species was two weeks earlier at Mt. Bongeui(in mid-April) than at Mt. Jumbong(in early May). Nuttonson's Index and Year Day Index for the flowering and leafing time of the same species showed similar value between the survey sites. It is analyzed that the transition in phenological phases between the sites is mainly caused by temperatures; further, it is implied that the climate changes and rise in temperatures could expedite the changes in phenological phases more than ever.
Keywords
FLOWERING; LEAFING; TEMPERATURE CHANGE; Mt. JUMBONG; Mt. BONGEUI;
Citations & Related Records
연도 인용수 순위
  • Reference
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