Keyphrases
Organic Matter
100%
Chemical Composition
100%
Forest Soil
100%
Humus Layer
100%
Humic Acid Fractions
100%
Polysaccharide
50%
Lignin
50%
Humification
50%
Aromatic Carbon
50%
Humin Fraction
50%
Structural Units
25%
Alkyl
25%
Carbon Structure
25%
NMR Data
25%
Spectroscopic Data
25%
13C NMR Spectroscopy
25%
13C NMR Spectra
25%
Carboxyl
25%
13C CPMAS NMR
25%
Wet Chemical Method
25%
Aromatic Structure
25%
Carbohydrates
25%
Compound Classes
25%
Oxidative Degradation
25%
Carbohydrate Content
25%
Specific Compounds
25%
Soil Horizons
25%
Phenolic Groups
25%
Whole Soil
25%
Humic Acid
25%
Fulvic Acid
25%
Chemical Data
25%
Plant Litter
25%
Forest Humus
25%
Moder
25%
Alkyl Carbon
25%
Selective Preservation
25%
Humin
25%
Fulvic Acid Fractions
25%
Alkyl Aromatics
25%
Microbial Polysaccharides
25%
Condensed Lignin
25%
Methoxyl Group
25%
Oxidative Decomposition
25%
Chemistry
Phase Composition
100%
Humus
100%
Humic Acid
100%
Fulvic Acid
40%
Polysaccharide
40%
13C NMR Spectroscopy
20%
NMR Data
20%
Aromatic Structure
20%
13C NMR Spectrum
20%
Oxidative Degradation
20%
Cross Polarization Magic-Angle Spinning
20%
Microbial Polysaccharides
20%
Chemical Method
20%
Oxidative Decomposition
20%
Material Science
Lignin
100%
Phase Composition
100%
Nuclear Magnetic Resonance
66%
Chemical Processing
33%
13C NMR Spectroscopy
33%
Oxidative Degradation
33%
Engineering
Aromatics
100%
Microbial
33%
Data Show
33%
Observed Data
33%
Phenolics
33%
Increasing Depth
33%
Oxidative Degradation
33%
Immunology and Microbiology
Humification
100%
Oxidation
50%
13C NMR Spectroscopy
50%
Chemical Engineering
Humic Acid
100%
Polysaccharide
60%