publication . Article . 2008

Effects of elevated CO2 concentrations on photosynthesis, dark respiration and RuBPcase activity of three species seedlings in Changbai Mountain

Zhou Yumei; Han Shi-jie; Zhang Jun-hui; Zou Chun-jing; Chen Yong-Jiang;
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  • Published: 05 Mar 2008 Journal: Journal of Forestry Research, volume 12, pages 235-238 (issn: 1007-662X, eissn: 1993-0607, Copyright policy)
  • Publisher: Springer Science and Business Media LLC
Abstract
Two-year-old seedlings ofPinus koraiensis, Pinus sylvestriformis andFraxinus mandshurica were treated in open-top chambers with elevated CO2 concentrations (700 μL·L−1, 500 μL·L−1) and ambient CO2 concentrations (350 μL·L−1) in Changbai Mountain from June to Sept. in 1999 and 2001. The net photosynthetic rate, dark respiration rate, ribulose-1,5-bisphosphate carboxlase (RuBPcase) activity, and chlorophyll content were analyzed. The results indicated the RuBPcase activity of the three species seedlings increased at elevated CO2 concentrations. The elevated CO2 concentrations stimulated the net photosynthetic rates of three tree species exceptP. sylvestriformis gr...
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free text keywords: Forestry, Photosynthesis, Chemistry, Chlorophyll content, Botany, Respiration rate, Respiration, Chlorophyll, chemistry.chemical_compound, Co2 concentration, Pinus koraiensis, Tree species
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