Title: Isotopic Methods for the Study of Soil Organic Matter Dynamics
Abstract: Chapter 39 Isotopic Methods for the Study of Soil Organic Matter Dynamics Duane C. Wolf, Duane C. Wolf University of Arkansas, Fayetteville, ArkansasSearch for more papers by this authorJ.O. Legg, J.O. Legg University of Arkansas, Fayetteville, ArkansasSearch for more papers by this authorThomas W. Boutton, Thomas W. Boutton Texas A & M University, College Station, TexasSearch for more papers by this author Duane C. Wolf, Duane C. Wolf University of Arkansas, Fayetteville, ArkansasSearch for more papers by this authorJ.O. Legg, J.O. Legg University of Arkansas, Fayetteville, ArkansasSearch for more papers by this authorThomas W. Boutton, Thomas W. Boutton Texas A & M University, College Station, TexasSearch for more papers by this author Book Editor(s):R. W. Weaver, R. W. WeaverSearch for more papers by this authorScott Angle, Scott AngleSearch for more papers by this authorPeter Bottomley, Peter BottomleySearch for more papers by this authorDavid Bezdicek, David BezdicekSearch for more papers by this authorScott Smith, Scott SmithSearch for more papers by this authorAli Tabatabai, Ali TabatabaiSearch for more papers by this authorArt Wollum, Art WollumSearch for more papers by this author First published: 01 January 1994 https://doi.org/10.2136/sssabookser5.2.c39Book Series:SSSA Book Series AboutPDFPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShareShare a linkShare onFacebookTwitterLinked InRedditWechat Summary This chapter addresses isotopic methods of assessing fluxes associated with soil organic matter. Obtaining 14C-labeled materials for studies on organic matter decomposition is the first and possibly the most difficult step. The 13C natural abundance technique for measuring soil organic matter dynamics is complementary to the tracer approaches using 14C- or 15N-enriched organic matter. The decomposition of soil organic nitrogen (N) is measured in terms of net mineralization rates. Since the labeled organic N is not uniformly distributed throughout the organic matter of the soil, estimates of mineralized N derived from both the indigenous and labeled organic N are made. Chemical extractions of soil organic matter have been used to determine the movement of labeled compounds into the various extracted fractions, as well as unknown non hydrolyzable forms. Methods of Soil Analysis: Part 2 Microbiological and Biochemical Properties, 5.2 RelatedInformation
Publication Year: 2018
Publication Date: 2018-09-11
Language: en
Type: book-chapter
Indexed In: ['crossref']
Access and Citation
Cited By Count: 32
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot