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	Carbon sinks and sources in China's forests during 1901-2001
	Wang S. ; Chen J. M. ; Ju W. M. ; Feng X. ; Chen M. ; Chen P. ; Yu G.
	2007
关键词	carbon sink carbon source forest carbon cycle China net primary productivity land-use change canada forests storage climate model biomass age co2 variability
英文摘要	This paper reports the annual carbon (C) balance of China's forests during 1901-2001 estimated using the Integrated Terrestrial Ecosystem C-budget model (InTEC). Annual carbon source and sink distributions are simulated for the same period using various spatial datasets including land cover and leaf area index (LAI) obtained from remote sensing, soil texture, climate, forest age, and nitrogen deposition. During 1901-1949, China's forests were a source of 21.0 +/- 7.STgCyr(-1) due to disturbances (human activities). Its size increased to 122.3 +/- 25.3TgCyr(-1) during 1950-1987 due to intensified human activities in the late 1950s, early 1960s, 1970s and early 1980s. The forests became large sinks of 176.7 +/- 44.8TgCyr(-1) during 1988-2001, owing to large-scale plantation and forest regrowth in previously disturbed areas as well as growth stimulation by nondisturbance factors such as climatic warming, atmospheric CO, fertilization, and N deposition. From 1901 to 2001, China's forests were a small carbon source of 3.32PgC, about 32.9 +/- 22.3TgCyr(-1). The overall C balance in biomass from InTEC generally agrees with previous results derived from forest inventories of China's forests. InTEC results also include C stock variation in soils and are therefore more comprehensive than previous results. The uncertainty in InTEC results is still large, but it can be reduced if a detailed forest age map becomes available. (C) 2006 Elsevier Ltd. All rights reserved.
出处	Journal of Environmental Management
卷	85
期	3
页	524-537
收录类别	SCI
语种	英语
ISSN号	0301-4797
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/22877]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Wang S.,Chen J. M.,Ju W. M.,et al. Carbon sinks and sources in China's forests during 1901-2001. 2007.

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