| Effects of Temperature on Photosynthetic Rates in Korean Fir （Abies koreana） between Healthy and Dieback Population |
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| 作者姓名： | Woo SY Lim JH Lee DK |
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| 作者单位： | Su Young Woo（Department of Environmental Horticulture, University of Seoul, Seoul 130-743, Republic of Korea） ;
Jong-Hwan Lim（Korea Forest Research Institute, Seoul 130-712, Republic of Korea） ;
Don Koo Lee（Department of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University, Seou1151-921, Republic of Korea） ; |
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| 基金项目： | Supported from the Restoration Project Fund provided by the Korea Forest Service （#S210606L0101104）.Acknowledgements We especially thank Ms. Kwon Mi Jung and Je Sun Mi for their field assistance. |
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| 摘 要： | The present study was carried out on natural Korean fir forests (Abies koreana) growing In Mount Halla in Jeju Island, Korea (33°13-36′ N and 126° 12-57′ E). Mount Halla is the highest mountain (1950 m a.s.l.) in South Korea. On the Korean fir forests near the top of Mount Halla in Korea, we established permanent plots between dieback and healthy population. Each permanent plot includes both dieback and relatively healthy Korean fir individuals. Three sites in this study showed similar altitude, topographic position, aspects, slope, diameter at breast height, average height and ages. Net photosynthetic rates (PN) on different temperature regimes were evaluated to explain the forest dieback phenomenon on Korean fir populations. Light response curves were determined on three different temperature regimes: 15℃, 20℃and 25℃. The Irradiance response curve showed higher values in lower air temperatures. Generally, Irradiance response curves of healthy Korean fir populations were higher than the dieback population at all sites.
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| 关 键 词： | 冷杉 光合作用 温度调节 森林 |
| 收稿时间： | 2007-01-22 |
| 修稿时间： | 2007-07-15 |
Effects of temperature on photosynthetic rates in Korean fir (Abies koreana) between healthy and dieback population |
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| Authors: | Woo Su Young Lim Jong-Hwan Lee Don Koo |
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| Institution: | ( Department of Environmental Horticulture, University of Seoul;, Seoul 130-743, Republic of Korea;Korea Forest Research Institute;, Seoul 130-712, Republic of Korea;Department of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University;, Seoul 151-921, Republic of Korea ) |
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| Abstract: | The present study was carried out on natural Korean fir forests (Abies koreana) growing In Mount Halla in Jeju Island, Korea (33°13-36′ N and 126° 12-57′ E). Mount Halla is the highest mountain (1950 m a.s.l.) in South Korea. On the Korean fir forests near the top of Mount Halla in Korea, we established permanent plots between dieback and healthy population. Each permanent plot includes both dieback and relatively healthy Korean fir individuals. Three sites in this study showed similar altitude, topographic position, aspects, slope, diameter at breast height, average height and ages. Net photosynthetic rates (PN) on different temperature regimes were evaluated to explain the forest dieback phenomenon on Korean fir populations. Light response curves were determined on three different temperature regimes: 15℃, 20℃and 25℃. The Irradiance response curve showed higher values in lower air temperatures. Generally, Irradiance response curves of healthy Korean fir populations were higher than the dieback population at all sites. |
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| Keywords: | Abies koreana global warming forest decline photosynthetic rates temperature |
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