Seasonal patterns and environmental control of ecosystem respiration in subtropical and temperate forests in China

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	Seasonal patterns and environmental control of ecosystem respiration in subtropical and temperate forests in China
	Yu, GR; Wen, XF; Li, QK; Zhang, LM; Ren, CY; Liu, YF; Guan, DX; Yu, GR, Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Chinese Ecosyst Res Network Synth Res Ctr, Beijing 100101, Peoples R China
刊名	SCIENCE IN CHINA SERIES D-EARTH SCIENCES
	2005
卷号	48 页码:93-105
关键词	Chinaflux Eddy Covariance q(10) Drought Effects Temperature Effects
ISSN号	1006-9313
英文摘要	Continuous measurement of carbon dioxide exchange using the eddy covariance (EC) technique was made at two ChinaFLUX forest sites including the young subtropical Pinus plantation (Qianyanzhou) and old temperate broad-leaved Korean pine mixed forest (Changbai Mountains) as part of the ChinaFLUX network. Seasonal patterns and environmental control of ecosystem respiration in the subtropical and temperate forests were evaluated by the often-used multiplicative model and Q(10) model as a function of temperature and soil water content. The results suggested that (i) temperature was found to be a dominant factor in the ecosystem respiration, and most of the temporal variability of ecosystem respiration was explained by temperature. However, in the drought-stressed ecosystem, soil water content controlled the temporal variability of ecosystem respiration other than temperature effects, and soil water content became a dominat factor when severe drought affected the ecosystem respiration; (ii) the regression models analysis revealed that in the drier soil, ecosystem respiration was more sensitive to soil moisture than was expressed by the often-used multiplicative model. It was possible to accurately estimate the seasonal variation of ecosystem respiration based on the 010 model; and (iii) annual ecosystem respiration derived from the often-used multiplicative model was 1209 g C m(-2) and 1303 g C m(-2), and was consistently a little higher than the Q(10) model estimates of 1197 g C m(-2) and 1268 g C m(-2) for Qianyanzhou and Changbai Mountains, respectively.
学科主题	Geosciences, Multidisciplinary
语种	英语
WOS记录号	WOS:000229942300009
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/55117]
专题	沈阳应用生态研究所_沈阳应用生态研究所
通讯作者	Yu, GR, Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Chinese Ecosyst Res Network Synth Res Ctr, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Yu, GR,Wen, XF,Li, QK,et al. Seasonal patterns and environmental control of ecosystem respiration in subtropical and temperate forests in China[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2005,48:93-105.
APA	Yu, GR.,Wen, XF.,Li, QK.,Zhang, LM.,Ren, CY.,...&Yu, GR, Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Chinese Ecosyst Res Network Synth Res Ctr, Beijing 100101, Peoples R China.(2005).Seasonal patterns and environmental control of ecosystem respiration in subtropical and temperate forests in China.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,48,93-105.
MLA	Yu, GR,et al."Seasonal patterns and environmental control of ecosystem respiration in subtropical and temperate forests in China".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 48(2005):93-105.