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Effects of Experimental Warming on Growth of Quercus variabilis Seedlings  

Lee, Sun Jeoung (Department of Environmental Science and Ecological Engineering, Korea University)
Han, Saerom (Department of Environmental Science and Ecological Engineering, Korea University)
Yoon, Tae Kyung (Department of Environmental Science and Ecological Engineering, Korea University)
Chung, Haegeun (Department of Environmental Engineering, Konkuk University)
Noh, Nam Jin (River Basin Research Center, Gifu University)
Jo, Wooyong (Department of Environmental Science and Ecological Engineering, Korea University)
Park, Chan-Woo (Department of Environmental Science and Ecological Engineering, Korea University)
Ko, Suin (Department of Environmental Science and Ecological Engineering, Korea University)
Han, Seung Hyun (Department of Environmental Science and Ecological Engineering, Korea University)
Son, Yowhan (Department of Environmental Science and Ecological Engineering, Korea University)
Publication Information
Journal of Korean Society of Forest Science / v.101, no.4, 2012 , pp. 722-728 More about this Journal
Abstract
Climate change affects all biological processes in terrestrial ecosystems including photosynthesis, plant growth and productivity. This study was conducted to investigate the effects of experimental warming on the growth of Quercus variabilis seedlings. One-year-old Q. variabilis seedlings were planted in control and warmed plots in April 2010. The air temperature of warmed plots was increased by $3^{\circ}C$ compared to control plots using the infrared lamp from November 2010. Shoot height and root collar diameter were measured in March 2011 and June 2012, respectively, and aboveground and belowground biomass were also measured in March 2011 and 2012, respectively. Shoot height and root collar diameter were significantly higher in warmed plots than in control plots, except for root collar diameter in March 2011. Increment (mm) of shoot height and root collar diameter were also higher in warmed plots ($529{\pm}30$, $5.6{\pm}0.5$) than in control plots ($464{\pm}28$, $4.5{\pm}0.4$). However, there were no significant differences between warmed and control plots except for root collar diameter. Increment (g/year) of total, aboveground and belowground biomass were higher in warmed plots ($36.88{\pm}6.52$, $11.91{\pm}3.44$, $24.97{\pm}3.73$) than in control plots ($30.59{\pm}5.51$, $8.73{\pm}1.66$, $21.86{\pm}3.88$), however, the differences were not statistically significant. Higher seedling growth and biomass of warmed plots might be related to the enhanced net photosynthetic rates in spring and the extended growing season.
Keywords
biomass; climate change; oak; seedling growth; warming;
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Times Cited By KSCI : 4  (Citation Analysis)
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