Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1017/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
![]() |
ISSN | 1473-5504 |
EISSN | 1475-3006 |
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. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。