Changes in soil organic carbon in croplands subjected to fertilizer management: a global meta-analysis

doi:10.1038/srep27199

CORC > 植物研究所 > 中国科学院植物研究所 > 中科院植物分子生理学重点实验室

	Changes in soil organic carbon in croplands subjected to fertilizer management: a global meta-analysis
	Han, Pengfei 2; Zhang, Wen ; Wang, Guocheng ; Sun, Wenjuan 1; Huang, Yao 2
刊名	SCIENTIFIC REPORTS
	2016
卷号	6
ISSN号	2045-2322
DOI	10.1038/srep27199
文献子类	Article
英文摘要	Cropland soil organic carbon (SOC) is undergoing substantial alterations due to both environmental and anthropogenic changes. Although numerous case studies have been conducted, there remains a lack of quantification of the consequences of such environmental and anthropogenic changes on the SOC sequestration across global agricultural systems. Here, we conducted a global meta-analysis of SOC changes under different fertilizer managements, namely unbalanced application of chemical fertilizers (UCF), balanced application of chemical fertilizers (CF), chemical fertilizers with straw application (CFS), and chemical fertilizers with manure application (CFM). We show that topsoil organic carbon (C) increased by 0.9 (0.7-1.0, 95% confidence interval (CI)) g kg(-1) (10.0%, relative change, hereafter the same), 1.7 (1.2-2.3) g kg(-1) (15.4%), 2.0 (1.9-2.2) g kg(-1) (19.5%) and 3.5 (3.2-3.8) g kg(-1) (36.2%) under UCF, CF, CFS and CFM, respectively. The C sequestration durations were estimated as 28-73 years under CFS and 26-117 years under CFM but with high variability across climatic regions. At least 2.0 Mg ha(-1) yr(-1) C input is needed to maintain the SOC in similar to 85% cases. We highlight a great C sequestration potential of applying CF, and adopting CFS and CFM is highly important for either improving or maintaining current SOC stocks across all agro-ecosystems.
学科主题	Multidisciplinary Sciences
出版地	LONDON
WOS关键词	CLIMATE-CHANGE MITIGATION ; RICE-WHEAT SYSTEM ; RESIDUE MANAGEMENT ; MICROBIAL BIOMASS ; PADDY FIELDS ; SEQUESTRATION ; AGRICULTURE ; AMENDMENTS ; NITROGEN ; MATTER
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	NATURE PUBLISHING GROUP
WOS记录号	WOS:000376868800002
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31370492, 41573069, 41321064]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/25375]
专题	中科院植物分子生理学重点实验室
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Atmospher Phys, LAPC, Beijing 100029, Peoples R China 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	Han, Pengfei,Zhang, Wen,Wang, Guocheng,et al. Changes in soil organic carbon in croplands subjected to fertilizer management: a global meta-analysis[J]. SCIENTIFIC REPORTS,2016,6.
APA	Han, Pengfei,Zhang, Wen,Wang, Guocheng,Sun, Wenjuan,&Huang, Yao.(2016).Changes in soil organic carbon in croplands subjected to fertilizer management: a global meta-analysis.SCIENTIFIC REPORTS,6.
MLA	Han, Pengfei,et al."Changes in soil organic carbon in croplands subjected to fertilizer management: a global meta-analysis".SCIENTIFIC REPORTS 6(2016).