干旱区生态环境知识资源中心(Arid): Global subsoil organic carbon turnover times dominantly controlled by soil properties rather than climate

Arid

DOI	10.1038/s41467-019-11597-9
	Global subsoil organic carbon turnover times dominantly controlled by soil properties rather than climate
	Luo, Zhongkui 1,3; Wang, Guocheng 2; Wang, Enli 1
通讯作者	Luo, Zhongkui ; Wang, Guocheng
来源期刊	NATURE COMMUNICATIONS
ISSN	2041-1723
出版年	2019
卷号	10
英文摘要	Soil organic carbon (SOC) in the subsoil below 0.3m accounts for the majority of total SOC and may be as sensitive to climate change as topsoil SOC. Here we map global SOC turnover times (tau) in the subsoil layer at 1 km resolution using observational databases. Global mean tau is estimated to be 1015(729)(1414) yr (mean with 95% confidence interval), and deserts and tundra show the shortest (146(114)(188) yr) and longest (3854(2651)(5622) yr) tau respectively. Across the globe, mean t ranges from 9 (the 5% quantile) to 6332 years (the 95% quantile). Temperature is the most important factor negatively affecting tau, but the overall effect of climate (including temperature and precipitation) is secondary compared with the overall effect of assessed soil properties (e.g., soil texture and pH). The high-resolution mapping of tau and the quantification of its controls provide a benchmark for diagnosing subsoil SOC dynamics under climate change.
类型	Article
语种	英语
国家	Australia ; Peoples R China
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000480684500005
WOS关键词	NET PRIMARY PRODUCTION ; RADIOCARBON CONSTRAINTS ; MATTER ; TEMPERATURE ; SYSTEM ; STABILIZATION ; DECOMPOSITION ; VEGETATION ; GRASSLAND ; FEEDBACKS
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
来源机构	中国科学院大气物理研究所 ; Commonwealth Scientific and Industrial Research Organisation
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217744
作者单位	1.CSIRO Agr & Food, GPO Box 1700, Canberra, ACT 2601, Australia; 2.Chinese Acad Sci, Inst Atmospher Phys, LAPC, Beijing, Peoples R China; 3.Zhejiang Univ, Coll Environm & Resource Sci, Hangzhou 310058, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Luo, Zhongkui,Wang, Guocheng,Wang, Enli. Global subsoil organic carbon turnover times dominantly controlled by soil properties rather than climate[J]. 中国科学院大气物理研究所, Commonwealth Scientific and Industrial Research Organisation,2019,10.
APA	Luo, Zhongkui,Wang, Guocheng,&Wang, Enli.(2019).Global subsoil organic carbon turnover times dominantly controlled by soil properties rather than climate.NATURE COMMUNICATIONS,10.
MLA	Luo, Zhongkui,et al."Global subsoil organic carbon turnover times dominantly controlled by soil properties rather than climate".NATURE COMMUNICATIONS 10(2019).