Response of needle dark respiration of Pinus koraiensis and Pinus sylvestriformis to elevated CO2 concentrations for four growing seasons' exposure

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	Response of needle dark respiration of Pinus koraiensis and Pinus sylvestriformis to elevated CO2 concentrations for four growing seasons' exposure
	Zhou, YM; Han, SJ; Zhang, HS; Xin, LH; Zheng, JQ; Zhou, YM, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
刊名	SCIENCE IN CHINA SERIES D-EARTH SCIENCES
	2007
卷号	50 期号:4 页码:613-619
关键词	Elevated Co2 Concentration Long-term Short-term Dark Respiration Pinus Koraiensis Pinus Sylvestriformis
ISSN号	1006-9313
英文摘要	The long-term effect of elevated CO2 concentrations on needle dark respiration of two coniferous species-Pinus koraiensis and Pinus sylvestriformis on the Changbai Mountain was investigated using open-top chambers. P. koraiensis and P. sylvestriformis were exposed to 700, 500 mu mol center dot mol(-1) CO2 and ambient CO2 (approx. 350 mu mol center dot mol(-1)) for four growing seasons. Needle dark respiration was measured during the second, third and fourth growing seasons' exposure to elevated CO2. The results showed that needle dark respiration rate increased for P. koraiensis and P. sylvestriformis grown at elevated CO2 concentrations during the second growing season, could be attributed to the change of carbohydrate and/or nitrogen content of needles. Needle dark respiration of P. koraiensis was stimulated and that of P. sylvestriformis was inhibited by elevated CO2 concentrations during the third growing season. Different response of the two tree species to elevated CO2 mainly resulted from the difference in the growth rate. Elevated CO2 concentrations inhibited needle dark respiration of both P. koraiensis and P. sylvestriformis during the fourth growing season. There was consistent trend between the short-term effect and the long-term effect of elevated CO2 on needle dark respiration in P. sylvestriformis during the third growing season by changing measurement CO2 concentrations. However, the short-term effect was different from the long-term effect for P. koraiensis. Response of dark respiration of P. koraiensis and P. sylvestriformis to elevated CO2 concentrations was related to the treatment time of CO2 and the stage of growth and development of plant. The change of dark respiration for the two tree species was determined by the direct effect of CO2 and long-term acclimation. The prediction of the long-term response of needle dark respiration to elevated CO2 concentration based on the short-term response is in dispute.
学科主题	Geosciences, Multidisciplinary
语种	英语
WOS记录号	WOS:000246273300014
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/54713]
专题	沈阳应用生态研究所_沈阳应用生态研究所
通讯作者	Zhou, YM, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhou, YM,Han, SJ,Zhang, HS,et al. Response of needle dark respiration of Pinus koraiensis and Pinus sylvestriformis to elevated CO2 concentrations for four growing seasons' exposure[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2007,50(4):613-619.
APA	Zhou, YM,Han, SJ,Zhang, HS,Xin, LH,Zheng, JQ,&Zhou, YM, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China.(2007).Response of needle dark respiration of Pinus koraiensis and Pinus sylvestriformis to elevated CO2 concentrations for four growing seasons' exposure.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,50(4),613-619.
MLA	Zhou, YM,et al."Response of needle dark respiration of Pinus koraiensis and Pinus sylvestriformis to elevated CO2 concentrations for four growing seasons' exposure".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 50.4(2007):613-619.