Journal ArticleDOI
Applications of NMR to soil organic matter analysis : History and prospects
TLDR
More than 30 years have passed since the first application of nuclear magnetic resonance (NMR) spectroscopy to soil organic matter (SOM), and there has been an explosion of applications using 1H, 13C, 31P, and 15N NMR on both solution and solid-state samples as discussed by the authors.Abstract:
More than 30 years have passed since the first application of nuclear magnetic resonance (NMR) spectroscopy to soil organic matter (SOM). Since then, there has been an explosion of applications using 1H, 13C, 31P, and 15N NMR on both solution and solid-state samples. These have greatly enhanced ourread more
Citations
More filters
Journal ArticleDOI
Physical fractionation of soil and structural and functional complexity in organic matter turnover
TL;DR: In this paper, the authors link the methods of fractionation to concepts of turnover by defining levels of structural and functional complexity that refer to experimentally verifiable pools of organic matter in the soil.
Journal ArticleDOI
Kerogen origin, evolution and structure
M. Vandenbroucke,C. Largeau +1 more
TL;DR: A review of the main advances in kerogen studies since the comprehensive synthesis edited by Durand [Durand, B. as discussed by the authors, 1980] can be found in this paper.
Journal ArticleDOI
The role of DOM sorption to mineral surfaces in the preservation of organic matter in soils.
Klaus Kaiser,Georg Guggenberger +1 more
TL;DR: In this paper, the authors investigated the role of dissolved organic matter (DOM) in the preservation of organic matter in marine sediments and found that DOM sorption contributes considerably to the accumulation and preservation of OM in soil.
Journal ArticleDOI
Physiological effects of humic substances on higher plants
TL;DR: The physiological effects of humic substances (HS) on some aspects of plant growth and metabolism are examined in this article, where the effect of HS on plant growth depends on the source, concentration and molecular weight humic fraction.
Journal ArticleDOI
Chemical composition and bioavailability of thermally altered Pinus resinosa (Red pine) wood
Jeff Baldock,Ronald J. Smernik +1 more
TL;DR: The relationship between changes in chemical composition and biological inertness of char C created in the laboratory by heating Pinus resinosa sapwood to temperatures between 70 and 350°C was quantified in this article.
References
More filters
Journal ArticleDOI
Ramped-Amplitude Cross Polarization in Magic-Angle-Spinning NMR
TL;DR: In this article, a ramped-amplitude cross-polarization sequence (RAMP-CP) was proposed for the Hartmann-Hahn matching profile in CP-MAS NMR.
Journal ArticleDOI
Study of free and occluded particulate organic matter in soils by solid state 13C Cp/MAS NMR spectroscopy and scanning electron microscopy
TL;DR: In this article, a densimetric method for the separation of free and occluded particulate organic materials was developed and applied to five virgin soils, where the free organic matter was isolated by suspending the soil in sodium polytungstate solution (d = 1.6 Mg m-3) and decanting the light material.
Journal ArticleDOI
Soil structure and carbon cycling
TL;DR: In this paper, soil organic matter (SOM) contained in various density fractions was classified as: (a) free particulate OM, (b) occluded particulated OM, and (c) colloidal or clay-associated OM.
Journal ArticleDOI
Aspects of the chemical structure of soil organic materials as revealed by solid-state 13C NMR spectroscopy
TL;DR: In this paper, the authors used solid-state cross-polarization/magic-angle-spinning 3C NMR spectroscopy to characterise semi-quantitatively the organic materials contained in particle size and density fractions isolated from five different mineral soils.
Journal ArticleDOI
Land-use effects on the composition of organic matter in particle-size separates of soil: I. Lignin and carbohydrate signature
TL;DR: In this article, a sample of Eutrochrept A horizons under long-term spruce forest (Sf), mixed deciduous forest (Df), permanent grassland (Gp) and arable rotation (Ar) was fractionated according to particle size and analysed for contents of C, N, lignin-derived phenols and carbohydrates.