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	Spatial characteristics of soil organic carbon storage in China's croplands
	Wang S. Q. ; Yu G. R. ; Zhao Q. J. ; Niu D. ; Chen Q. M. ; Wu Z. F.
	2005
关键词	carbon storage cropland soil organic carbon spatial characteristics land-use change agricultural intensification clay content sequestration ecosystems nitrogen pattern stocks
英文摘要	The soil organic carbon (SOC) pool is the largest component of terrestrial carbon pools. With the construction of a geographically referenced database taken from the second national general soil survey materials and based on 1546 typical cropland soil profiles, the paddy field and dryland SOC storage among six regions of China were systematically quantified to characterize the spatial pattern of cropland SOC storage in China and to examine the relationship between mean annual temperature, precipitation, soil texture features and SOC content. In all regions, paddy soils had higher SOC storage than dryland soils, and cropland SOC content was the highest in Southwest China. Climate controlled the spatial distribution of SOC in both paddy and dryland soils, with SOC storage increasing with increasing precipitation and decreasing with increasing temperature.
出处	Pedosphere
卷	15
期	4
页	417-423
收录类别	SCI
语种	英语
ISSN号	1002-0160
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/22860]
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. Q.,Yu G. R.,Zhao Q. J.,et al. Spatial characteristics of soil organic carbon storage in China's croplands. 2005.

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