Determining phytolith-occluded organic carbon sequestration using an upgraded optimized extraction method: indicating for a missing carbon pool

doi:10.1007/s11356-018-2706-7

	Determining phytolith-occluded organic carbon sequestration using an upgraded optimized extraction method: indicating for a missing carbon pool
	Han, Ning 1,2; Yang, Yufei 3; Gao, Yang 1,2; Hao, Zhuo 1,2; Tian, Jing 1,2; Yang, Tiantian 4; Song, Xianwei 1
刊名	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
	2018-08-01
卷号	25 期号:24 页码:24507-24515
关键词	Wet ashing Phytolith Extraction PhytOC stocks Carbon pool
ISSN号	0944-1344
DOI	10.1007/s11356-018-2706-7
通讯作者	Yang, Yufei(yangyf@craes.org.cn) ; Gao, Yang(gaoyang@igsnrr.ac.cn)
英文摘要	Phytolith-occluded organic carbon (PhytOC) is considered one of the most promising terrestrial carbon (C) sinks. Different methods are used for phytolith extraction from wet-ashing techniques and the subsequent determination of PhytOC content from soil. This is in order to optimize the wet-ashing techniques and to improve estimation accuracy of C sequestration potential of phytoliths from soil. Results show that the organic matter removal and carbonate removal protocol, applying sonication, has a significant effect on phytolith extraction. Namely, the sequential removal of first organic matter and then carbonates applied to such methods could eliminate greater than 17.14, 46.68, and 26.17% extraneous material compared to other methods. Moreover, phytoliths extracted using methods that apply sonication eliminated 7.49, 42.70, and 17.57% more extraneous material than methods that did not. Additionally, the procedure associated with the second oxidation step significantly influenced the determination of PhytOC content, that is, 29.34, 33.75, 26.41, and 64.64% of excess organic C were oxidized during this step. The upgraded optimal method we recommend for phytolith extraction in association with wet-ashing techniques and the subsequent determination of PhytOC content is therefore to first apply sonication, then the second oxidation step, and finally the removal of organic matter. Using this optimal upgraded method, we estimated the C sequestration potential of phytoliths from the soil of slash pine in China at 0.51 Mt. C. Furthermore, using this upgraded optimal method increased the precision of the carbon sequestration potential of phytoliths from soil by up to 63.83%.
资助项目	National Nature Science Foundation of China[31570465] ; National Nature Science Foundation of China[41571130043] ; National Key Research Program of China[2016YFC0500202] ; Youth Innovation Promotion Association CAS
WOS关键词	MICROWAVE DIGESTION ; HARVESTED GRASSES ; ANCIENT CARBON ; PLANT-MATERIAL ; HEAVY LIQUID ; SOIL ; OXIDATION ; SILICA ; SONOCHEMISTRY ; TRANSPORT
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000441784000090
资助机构	National Nature Science Foundation of China ; National Key Research Program of China ; Youth Innovation Promotion Association CAS
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/54394]
专题	中国科学院地理科学与资源研究所
通讯作者	Yang, Yufei; Gao, Yang
作者单位	1.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China 3.Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China 4.Univ Calif Irvine, Dept Civil & Environm Engn, Irvine, CA 92697 USA
推荐引用方式 GB/T 7714	Han, Ning,Yang, Yufei,Gao, Yang,et al. Determining phytolith-occluded organic carbon sequestration using an upgraded optimized extraction method: indicating for a missing carbon pool[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2018,25(24):24507-24515.
APA	Han, Ning.,Yang, Yufei.,Gao, Yang.,Hao, Zhuo.,Tian, Jing.,...&Song, Xianwei.(2018).Determining phytolith-occluded organic carbon sequestration using an upgraded optimized extraction method: indicating for a missing carbon pool.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,25(24),24507-24515.
MLA	Han, Ning,et al."Determining phytolith-occluded organic carbon sequestration using an upgraded optimized extraction method: indicating for a missing carbon pool".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 25.24(2018):24507-24515.