Contrasting Effects of Agricultural Management on Soil Organic Carbon Balance in Different Agricultural Regions of China

	Contrasting Effects of Agricultural Management on Soil Organic Carbon Balance in Different Agricultural Regions of China
	Wang Guo-Cheng ; Luo Zhong-Kui ; Wang En-Li ; Huang Yao2
	2013
发表期刊	PEDOSPHERE
ISSN	1002-0160
卷号	23 期号:6 页码:717-728
摘要	Improving management of soil organic carbon (SOC) has been considered as a substantial mitigation strategy to climate change. Management such as stubble retention (SR), conservation tillage (ZT), and fertilization are recommended for both promoting production and accumulating SOC. However, whether such management practices can cause net increase in SOC or just a slow-down of SOC decline largely depends on the current status of SOC for a given region. This paper synthesized the available SOC data in the croplands of China, and analysed the change of SOC in the top 20 cm soil as a result of management change. The results showed that, on average, SOC increased by 18.3% through SR, by 9.1% through ZT, and by 12.4%, 36.9% and 41.5% through application of inorganic (IF), organic (OF) and combined inorganic and organic fertilizers (IOF), respectively, compared to those under stubble removal, conventional tillage and no fertilization. Under SR, ZT, IF, OF and IOF, SOC increased by 16.0%, 10.2%, 8.2%, 32.2% and 41.3%, respectively, at the end of the trials compared with the initial values at the start of the trials. Our analysis also showed that in Northeast and Northwest China, SOC in agricultural soils is still decreasing due to cultivation. In North and South China, however, SOC appears to have reached a new equilibrium of low SOC state after a long cultivation history, and soils have greater potential to sequester C. Our analysis highlights the need of taking account of the baseline status to assess the net soil C balance over time and space.
关键词	agricultural practices climate change fertilization residue management tillage
学科领域	Soil Science
收录类别	SCI
语种	英语
WOS关键词	LONG-TERM FERTILIZATION ; CROP YIELDS ; TILLAGE ; NITROGEN ; FRACTIONS ; CROPLANDS ; SYSTEM ; MATTER ; SEQUESTRATION ; MANURE
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000327913300002
出版者	SCIENCE PRESS
文献子类	Article
出版地	BEIJING
EISSN	2210-5107
资助机构	National Basic Research Program of China(National Basic Research Program of China) ; National Natural Science Foundation of China(National Natural Science Foundation of China (NSFC))
作者邮箱	Wang, Enli/K-7478-2012 ; Wang, Guocheng/M-3857-2013 ; Huang, Yao/O-6832-2014 ; LAPC, IAP/AAI-6991-2020 ; Luo, Zhongkui/B-8125-2008 ; Wang, Guocheng/AAJ-6674-2020 ; Luo, Zhongkui/D-1628-2011 ; Huang, Yao/GQH-3308-2022 ; Huang, Yao/AAN-8569-2021
引用统计	被引频次：12[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/27927
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100083, Peoples R China 2.CSIRO Land & Water, Canberra, ACT 2601, Australia 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Wang Guo-Cheng,Luo Zhong-Kui,Wang En-Li,et al. Contrasting Effects of Agricultural Management on Soil Organic Carbon Balance in Different Agricultural Regions of China[J]. PEDOSPHERE,2013,23(6):717-728.
APA	Wang Guo-Cheng,Luo Zhong-Kui,Wang En-Li,&Huang Yao.(2013).Contrasting Effects of Agricultural Management on Soil Organic Carbon Balance in Different Agricultural Regions of China.PEDOSPHERE,23(6),717-728.
MLA	Wang Guo-Cheng,et al."Contrasting Effects of Agricultural Management on Soil Organic Carbon Balance in Different Agricultural Regions of China".PEDOSPHERE 23.6(2013):717-728.

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