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

文献类型：期刊论文

作者Han, Ning2,3; Yang, Yufei1; Gao, Yang2,3; Hao, Zhuo2,3; Tian, Jing2,3; Yang, Tiantian4; Song, Xianwei2
刊名ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
出版日期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
DOI10.1007/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%.
WOS关键词MICROWAVE DIGESTION ; HARVESTED GRASSES ; ANCIENT CARBON ; PLANT-MATERIAL ; HEAVY LIQUID ; SOIL ; OXIDATION ; SILICA ; SONOCHEMISTRY ; TRANSPORT
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研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000441784000090
出版者SPRINGER HEIDELBERG
资助机构National Nature Science Foundation of China ; National Key Research Program of China ; Youth Innovation Promotion Association CAS
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 Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
2.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, 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.

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来源：地理科学与资源研究所

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