Response of canopy quantum yield of alpine meadow to temperature under low atmospheric pressure on Tibetan Plateau

CORC > 地理科学与资源研究所 > 中国科学院地理科学与资源研究所 > 生态系统研究网络观测与模拟重点实验室 > CERN水分分中心

	Response of canopy quantum yield of alpine meadow to temperature under low atmospheric pressure on Tibetan Plateau
	Yu Guirui; Shi Peili; Zhang XianZhou(张宪洲)
刊名	SCIENCE IN CHINA SERIES D-EARTH SCIENCES
	2006
卷号	49 期号:Suppl. 2 页码:219-225
关键词	Tibetan Plateau alpine meadow canopy quantum yield temperature
ISSN号	1006-9313
通讯作者	Xu LL
学科主题	Geosciences, Multidisciplinary
收录类别	SCI
语种	英语
公开日期	2011-06-10
附注	An open-path eddy covariance system was set up in Damxung rangeland station to measure the carbon flux from July to October, 2003. The canopy quantum yield (alpha) of alpine meadow was calculated by the linear function between the net ecosystem carbon dioxide exchange (NEE) and the photosynthetic active radiation (PAR) under low light, and how it was influenced by the temperature was also discussed. Results showed that the canopy a decreased almost linearly with temperature, with the decrease in every 1 degrees C increase of temperature similar to those measured on leaf level of C-3 plant. At the beginning, the decrease of canopy a with temperature was 0.0005 Nmol CO2-mu mol(-1) PAR; while it increased to 0.0008 Nmol CO2.mu mol(-1) PAR in September, showing a rising trend with plant growing stages. Compared with the canopy a calculated with rectangular hyperbola function, the value in the paper was lower. However, the method advanced here has the advantages in examining the relationship between a and the key environmental factors, such as temperature.
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/4301]
专题	地理科学与资源研究所_生态系统研究网络观测与模拟重点实验室_CERN水分分中心
推荐引用方式 GB/T 7714	Yu Guirui,Shi Peili,Zhang XianZhou. Response of canopy quantum yield of alpine meadow to temperature under low atmospheric pressure on Tibetan Plateau[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2006,49(Suppl. 2):219-225.
APA	Yu Guirui,Shi Peili,&Zhang XianZhou.(2006).Response of canopy quantum yield of alpine meadow to temperature under low atmospheric pressure on Tibetan Plateau.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,49(Suppl. 2),219-225.
MLA	Yu Guirui,et al."Response of canopy quantum yield of alpine meadow to temperature under low atmospheric pressure on Tibetan Plateau".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 49.Suppl. 2(2006):219-225.