An observational study of the carbon-sink strength of East Asian subtropical evergreen forests

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	An observational study of the carbon-sink strength of East Asian subtropical evergreen forests
	Yu Gui-Rui
	2012
关键词	Carbon Climate change Ecosystems Forestry Photosynthesis Tropics
英文摘要	Relatively little is known about the effects of regional warming on the carbon cycle of subtropical evergreen forest ecosystems, which are characterized by year-round growing season and cold winters. We investigated the carbon balance in three typical East Asia subtropical evergreen forests, using eddy flux, soil respiration and leaf-level measurements. Subtropical evergreen forests maintain continuous, high rates of photosynthetic activity, even during winter cold periods. Warm summers enhance photosynthetic rates in a limited way, because overall ecosystem productivity is primarily restrained by radiation levels during the warm period. Conversely, warm climates significantly enhance the respiratory carbon efflux. The finding of lower sensitivity of photosynthesis relative to that of respiration suggests that increased temperature will weaken the carbon-sink strength of East Asia subtropical evergreen forests. 2012 IOP Publishing Ltd.
出处	Environmental Research Letters
卷	7 期:4
收录类别	EI
内容类型	EI期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/31361]
专题	地理科学与资源研究所_历年回溯文献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 Gui-Rui. An observational study of the carbon-sink strength of East Asian subtropical evergreen forests. 2012.