Pyrolysis-molecular beam mass spectrometry to characterize soil organic matter composition in chemically isolated fractions from differing land uses

2008 ◽  
Vol 92 (1-2) ◽  
pp. 145-161 ◽  
Author(s):  
Alain F. Plante ◽  
Kim Magrini-Bair ◽  
Merle Vigil ◽  
Eldor A. Paul
Keyword(s):  
Mass Spectrometry ◽  
Organic Matter ◽  
Soil Organic Matter ◽  
Molecular Beam ◽  
Land Uses ◽  
Organic Matter Composition ◽  
Molecular Beam Mass Spectrometry ◽  
Soil Organic Matter Composition

scholarly journals Comparison of soil organic matter composition under different land uses by DRIFT spectroscopy

2021 ◽  
Vol 67 (No. 5) ◽  
pp. 255-263
Author(s):  
Saven Thai ◽  
Lenka Pavlů ◽  
Václav Tejnecký ◽  
Petra Vokurková ◽  
Shahin Nozari ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Molecular Mass ◽  
Forest Soil ◽  
Fulvic Acids ◽  
Land Uses ◽  
Drift Spectroscopy ◽  
Organic Matter Composition ◽  
Diffuse Reflectance Infrared ◽  
Soil Organic Matter Composition

The study aimed to estimate and characterise soil organic matter under different land uses (cropland, grassland, and forest) and soil depths. The soil organic matter composition of the soil was assessed by diffuse reflectance infrared spectroscopy (DRIFT). Humic and fulvic acids (HAs, FAs) were extracted from soils and their compositions were evaluated by DRIFT. Low molecular mass organic acids content was also measured. Our result revealed that the largest differences of the spectra in the composition of organic matter were observed in the upper parts of the soil profile. The forest soil spectra had more intense aliphatic bands, carboxylic, and CH bands than spectra of grassland and cropland soils. The difference of HAs spectra was at 3 010 to 2 800/cm where the most intensive aliphatic bands were in forest soil HAs, followed by grassland and cropland soil HAs. The grassland topsoil FAs spectrum differs most from the other land uses. It has lower peaks around 1 660–1 600/cm and 1 200/cm than cropland and forest. The concentration of low molecular mass organic acid (LMMOA) was the highest in the forest soil and the most abundant acid was citrate.  

scholarly journals Soil organic matter composition of forest Rendzinas in West Bulgaria

2021 ◽  
Vol 10 (4) ◽  
pp. 320-326
Author(s):  
Biser HRİSTOV ◽  
Ivaylo KİRİLOV ◽  
Pavel PAVLOV
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Organic Matter Composition ◽  
Soil Organic Matter Composition

Warming alters surface soil organic matter composition despite unchanged carbon stocks in a Tibetan permafrost ecosystem

2020 ◽  
Vol 34 (4) ◽  
pp. 911-922 ◽  
Author(s):  
Fei Li ◽  
Yunfeng Peng ◽  
Leiyi Chen ◽  
Guibiao Yang ◽  
Benjamin W. Abbott ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Surface Soil ◽  
Carbon Stocks ◽  
Organic Matter Composition ◽  
Soil Organic Matter Composition

scholarly journals Boreal tree species affect soil organic matter composition and saprotrophic mineralization rates

2019 ◽  
Vol 441 (1-2) ◽  
pp. 173-190 ◽  
Author(s):  
Javier H. Segura ◽  
Mats B. Nilsson ◽  
Tobias Sparrman ◽  
Henrik Serk ◽  
Jürgen Schleucher ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Tree Species ◽  
Organic Matter Composition ◽  
Soil Organic Matter Composition
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