Arid
DOI10.1017/S1473550414000019
Field method for rapid quantification of labile organic carbon in hyper-arid desert soils validated by two thermal methods
Fletcher, Lauren E.1,2; Valdivia-Silva, Julio E.2,3; Perez-Montano, Saul2,4; Condori-Apaza, Renee M.5; Conley, Catharine A.6; Navarro-Gonzalez, Rafael3; McKay, Christopher P.2
通讯作者Fletcher, Lauren E.
来源期刊INTERNATIONAL JOURNAL OF ASTROBIOLOGY
ISSN1473-5504
EISSN1475-3006
出版年2014
卷号13期号:2页码:182-189
英文摘要

The objective of this work was to develop a field method for the determination of labile organic carbon in hyper-arid desert soils. Industry standard methods rely on expensive analytical equipment that are not possible to take into the field, while scientific challenges require fast turn-around of large numbers of samples in order to characterize the soils throughout this region. Here we present a method utilizing acid-hydrolysis extraction of the labile fraction of organic carbon followed by potassium permanganate oxidation, which provides a quick and inexpensive approach to investigate samples in the field. Strict reagent standardization and calibration steps within this method allowed the determination of very low levels of organic carbon in hyper-arid soils, in particular, with results similar to those determined by the alternative methods of Calcination and Pyrolysis-Gas Chromatography-Mass Spectrometry. Field testing of this protocol increased the understanding of the role of organic materials in hyper-arid environments and allowed real-time, strategic decision making for planning for more detailed laboratory-based analysis.


英文关键词organic-variability acid hydrolysis permanganate oxidation hyper-arid extreme environments thermal methods labile soil organic carbon
类型Article
语种英语
国家England ; USA ; Mexico ; Peru
收录类别SCI-E
WOS记录号WOS:000333749700011
WOS关键词MARS-LIKE SOILS ; ATACAMA DESERT ; PERMANGANATE OXIDATIONS ; MASS-SPECTROMETRY ; MICROBIAL LIFE ; SULFURIC-ACID ; TAYLOR VALLEY ; MINERAL SOILS ; MATTER ; HYDROLYSIS
WOS类目Astronomy & Astrophysics ; Biology ; Geosciences, Multidisciplinary
WOS研究方向Astronomy & Astrophysics ; Life Sciences & Biomedicine - Other Topics ; Geology
来源机构Universidad Nacional Autónoma de México ; University of Oxford
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/182675
作者单位1.Univ Oxford, Clarendon Lab, AOPP, Oxford OX1 3PU, England;
2.NASA, Ames Res Ctr, Div Space Sci, Moffett Field, CA 94035 USA;
3.Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Lab Quim Plasmas & Estudios Planetarios, Mexico City 04510, DF, Mexico;
4.San Jose State Univ, Dept Chem, San Jose, CA 95192 USA;
5.Univ Nacl San Agustin, Arequipa, Peru;
6.NASA Headquarters, Sci Mission Directorate, Planetary Sci Div, Washington, DC USA
推荐引用方式
GB/T 7714
Fletcher, Lauren E.,Valdivia-Silva, Julio E.,Perez-Montano, Saul,et al. Field method for rapid quantification of labile organic carbon in hyper-arid desert soils validated by two thermal methods[J]. Universidad Nacional Autónoma de México, University of Oxford,2014,13(2):182-189.
APA Fletcher, Lauren E..,Valdivia-Silva, Julio E..,Perez-Montano, Saul.,Condori-Apaza, Renee M..,Conley, Catharine A..,...&McKay, Christopher P..(2014).Field method for rapid quantification of labile organic carbon in hyper-arid desert soils validated by two thermal methods.INTERNATIONAL JOURNAL OF ASTROBIOLOGY,13(2),182-189.
MLA Fletcher, Lauren E.,et al."Field method for rapid quantification of labile organic carbon in hyper-arid desert soils validated by two thermal methods".INTERNATIONAL JOURNAL OF ASTROBIOLOGY 13.2(2014):182-189.
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