Seasonal variations of ecosystem apparent quantum yield (alpha) and maximum photosynthesis rate (P-max) of different forest ecosystems in China

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	Seasonal variations of ecosystem apparent quantum yield (alpha) and maximum photosynthesis rate (P-max) of different forest ecosystems in China
	Zhang, LM; Yu, GR; Sun, XM; Wen, XF; Ren, CY; Fu, YL; Li, QK; Li, ZQ; Liu, YF; Guan, DX
刊名	AGRICULTURAL AND FOREST METEOROLOGY
	2006
卷号	137 期号:3-4 页码:176-187
关键词	Photosynthetic Capacity Drought Monsoon Climate Eddy Covariance
ISSN号	0168-1923
英文摘要	Continuous measurements of carbon dioxide using the eddy covariance (EC) technique were made in 2003 at three ChinaFLUX forest sites, including a temperate mixed forest (CBS), a subtropical evergreen coniferous plantation (QYZ) and a subtropical evergreen broad-leaved forest (DHS) along the North-South Transect of Eastern China (NSTEC). The three forest sites are influenced by Asian monsoon climate to varying degrees. The environmental controls on the seasonal variations of ecosystem apparent quantum yield (alpha), maximum photosynthesis rate (P-max) and ecosystem respiration (R-e) were investigated in the three forest ecosystems. At the CBS site, temperature was found to be the dominant factor controlling the seasonal patterns of ecosystem alpha and P-max, while the phenology, which was mainly embodied by the development of LAI, also displayed important influence. The seasonal patterns of alpha and P-max at (VPD) were mainly ascribed to vapor pressure deficit (VPD). Ecosystem alpha decreased with increasing VPD and P x decreased below and above the optimum VPD as a result of the Asian subtropical monsoon climate which resulted in the extremely high temperature and low moisture. At the DHS site, ecosystem a only appeared weak negative correlation with temperature, while there was no obvious dominant factor controlling the seasonal pattern of ecosystem P-max. The ecosystem respiration of the three forest ecosystems could be estimated well by temperature with an exponential equation. During the growing season, the ecosystem alpha, P-max and R-e at CBS were much stronger than that of QYZ and DHS. The R-c at CBS was more sensitivity to temperature than that of QYZ and DHS, so its response to changing climate deserved more attention in the evaluation of the carbon budget of such ecosystem. (c) 2006 Elsevier B.V. All rights reserved.
学科主题	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
语种	英语
WOS记录号	WOS:000240070700007
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/54903]
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, Acad Sinica, Inst Geog Sci & Nat Resources Res, Synth Res Ctr, Chinese Ecosyst Res Network,Key Lab Ecosyst Netwo, 11A Datun Rd,Anwai St, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Zhang, LM,Yu, GR,Sun, XM,et al. Seasonal variations of ecosystem apparent quantum yield (alpha) and maximum photosynthesis rate (P-max) of different forest ecosystems in China[J]. AGRICULTURAL AND FOREST METEOROLOGY,2006,137(3-4):176-187.
APA	Zhang, LM.,Yu, GR.,Sun, XM.,Wen, XF.,Ren, CY.,...&Yu, GR, Acad Sinica, Inst Geog Sci & Nat Resources Res, Synth Res Ctr, Chinese Ecosyst Res Network,Key Lab Ecosyst Netwo, 11A Datun Rd,Anwai St, Beijing 100101, Peoples R China.(2006).Seasonal variations of ecosystem apparent quantum yield (alpha) and maximum photosynthesis rate (P-max) of different forest ecosystems in China.AGRICULTURAL AND FOREST METEOROLOGY,137(3-4),176-187.
MLA	Zhang, LM,et al."Seasonal variations of ecosystem apparent quantum yield (alpha) and maximum photosynthesis rate (P-max) of different forest ecosystems in China".AGRICULTURAL AND FOREST METEOROLOGY 137.3-4(2006):176-187.