Using Mid-Infrared Diffuse Reflectance Spectroscopy to Investigate the Dynamics of Soil Aggregate Formation in a Clay Soil

Zhaolong Zhu,Budiman Minasny,Damien J. Field,Shaoshan An

CATENA（2023）

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Abstract
•Ratio of peak areas of MIR quantified OM dynamics in soil.•Using ratio of peak area increases our understanding of soil aggregate dynamics.•High C/N OM resulted in slow decomposition and gradual aggregation.•Low C/N OM fostered rapid macroaggregate formation and subsequent reorganisation.•Assigning a MIR band to a C group indicating its stability can be misleading.
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Key words
Diffuse reflectance infrared,Ratio of peak area,Soil carbon,Aggregate stability,Aggregate hierarchy
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