Abstract
Eco-physiological responses of seedlings of eight species,Pinus koraiensis, Picea koraiensis, Larix olgensis, Populus ussuriensis, Betula platyphylla, Tilia amurensis, Traxinus mandshurica andAcer mono from broadleaved/Korean pine forest, to elevated CO2 were studied by using open-top chambers under natural sunlight in Changbai Mountain, China in two growing seasons (1998–1999). Two concentrations of CO2 were designed: elevated CO2 (700 μmol·mol−1) and ambient CO2 (400 μmol·mol−1). The study results showed that the height growth of the tree seedlings grown at elevated CO2 increased by about 10%–40% compared to those grown at ambient CO2. And the water using efficiency of seedlings also followed the same tendency. However, the responses of seedlings in transpiration and chlorophyll content to elevated CO2 varied with tree species. The broad-leaf tree species were more sensitive to the elevated CO2 than conifer tree species. All seedlings showed a photosynthetic acclimation to long-term elevated CO2.
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Foundation item: The project was supported by National Key Basic Development of China (G1999043400) and the grant KZCX 406-4, KZCX1 SW-01 of the Chinese Academy of Sciences
Biography: WANG Miao (1964-), maie, associate professor in Institute of applied Ecology, Chinese Academy of Sciences, Shenyang 110016, P. R. China.
Responsible editor: Song Funan
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Miao, W., Qiu-rong, L., Li-min, D. et al. Response of seedlings of different tree species to elevated CO2 in Changbai Mountain. Journal of Forestry Research 14, 112–116 (2003). https://doi.org/10.1007/BF02856775
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DOI: https://doi.org/10.1007/BF02856775