Response of seedlings of different tree species to elevated C02 in Changbai Mountain

编号 zgly0000303655

文献类型 期刊论文

文献题名 Response of seedlings of different tree species to elevated C02 in Changbai Mountain

学科分类 220.1060;森林生态学

作者 DAILi-min  JILan-zhu  WANGMiao  LIQiu-rong 

作者单位 InstituteofAppliedEcology 

母体文献 Journal of Forestry Research;林业研究: 英文版 

年卷期 2003,14(2)

页码 112-116

年份 2003 

分类号 S718.512.1 

关键词 长白山阔叶红松林  树种  苗木  大气二氧化碳浓度  高生长  水分利用效率  叶绿素含量  蒸腾速率  光合驯化现象 

文摘内容 Eco-physiological responses of seedlings of eight species, Pinus koraiensis, Picea koraiensis, Lanx olgensis,Populus ussuriensis, Betula platyphylla, Tilia amurensis, Traxinus mandshurica and Acer 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 pmol· mol^-1) and ambient CO2 (400μmol· 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 CO2than conifer tree species. All seedlings showed a photo-synthetic acclimation to Iong-term elevated CO2。