Title: Intact Soil Core Total, Inorganic, and Organic Carbon Measurement Using Laser-Induced Breakdown Spectroscopy
Abstract: Soil Science Society of America JournalVolume 75, Issue 3 p. 1006-1018 Pedology Intact Soil Core Total, Inorganic, and Organic Carbon Measurement Using Laser-Induced Breakdown Spectroscopy Ross S. Bricklemyer, Corresponding Author Ross S. Bricklemyer [email protected] Dep. of Crop and Soil Sciences, Washington State Univ., PO Box 646420, Pullman, WA, 99164-6420Corresponding author ([email protected]).Search for more papers by this authorDavid J. Brown, David J. Brown Dep. of Crop and Soil Sciences, Washington State Univ., PO Box 646420, Pullman, WA, 99164-6420Search for more papers by this authorJames E. Barefield, James E. Barefield Los Alamos National Lab., Chemical Diagnostics and Engineering Group (C-CDE), PO Box 1663, MS J565, Los Alamos, NM, 87545Search for more papers by this authorSamuel M. Clegg, Samuel M. Clegg Los Alamos National Lab., Chemical Diagnostics and Engineering Group (C-CDE), PO Box 1663, MS J565, Los Alamos, NM, 87545Search for more papers by this author Ross S. Bricklemyer, Corresponding Author Ross S. Bricklemyer [email protected] Dep. of Crop and Soil Sciences, Washington State Univ., PO Box 646420, Pullman, WA, 99164-6420Corresponding author ([email protected]).Search for more papers by this authorDavid J. Brown, David J. Brown Dep. of Crop and Soil Sciences, Washington State Univ., PO Box 646420, Pullman, WA, 99164-6420Search for more papers by this authorJames E. Barefield, James E. Barefield Los Alamos National Lab., Chemical Diagnostics and Engineering Group (C-CDE), PO Box 1663, MS J565, Los Alamos, NM, 87545Search for more papers by this authorSamuel M. Clegg, Samuel M. Clegg Los Alamos National Lab., Chemical Diagnostics and Engineering Group (C-CDE), PO Box 1663, MS J565, Los Alamos, NM, 87545Search for more papers by this author First published: 01 May 2011 https://doi.org/10.2136/sssaj2009.0244Citations: 30 All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission for printing and for reprinting the material contained herein has been obtained by the publisher. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract Laser-induced breakdown spectroscopy (LIBS) is an emerging elemental analysis technology with the potential to provide rapid, accurate, and precise analysis of soil constituents. We evaluated the accuracy of LIBS in measuring soil profile C for field-moist, intact soil cores by interrogating 78 intact soil cores from three Montana agricultural fields. Samples from each core were analyzed in the laboratory for total C (TC), inorganic C (IC), and soil organic C (SOC). Partial least squares 2 (PLS2) regression calibration models were derived using 58 cores (227 samples) and independently validated at the field scale with the remaining 20 cores (79 samples). We obtained the best LIBS validation predictions for IC (r2 = 0.66, standard error of prediction [SEP] = 5.3 g kg−1, ratio product differential [RPD] = 1.7) followed by TC (r2 = 0.63, SEP = 6.0 g kg−1, RPD = 1.6) and SOC (r2 = 0.22, SEP = 3.2 g kg−1, RPD = 1.1). Although the SEP for SOC was less than for TC and IC, low SOC variance limited our ability to evaluate LIBS SOC prediction capabilities. Regression coefficients from LIBS PLS2 models suggested a reliance on stoichiometric relationships between C and other elements related to total and inorganic C in the soil matrix (e.g., Ca, Mg, and Si) to discriminate TC from IC. Results indicate that LIBS spectral data collected on intact soil cores can be calibrated to accurately estimate and differentiate between soil total and inorganic C concentrations at the field scale. Citing Literature Volume75, Issue3May 2011Pages 1006-1018 RelatedInformation
Publication Year: 2011
Publication Date: 2011-05-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 39
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