Potential denitrification stimulated by water-soluble organic carbon from plant residues during initial decomposition

• Published in: Soil biology & biochemistry Vol. 147; p. 107841
• Main Authors: Surey, Ronny, Schimpf, Corinna M., Sauheitl, Leopold, Mueller, Carsten W., Rummel, Pauline S., Dittert, Klaus, Kaiser, Klaus, Böttcher, Jürgen, Mikutta, Robert
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.08.2020
• Subjects: biochemistry; carbon dioxide; Chemical composition of organic matter; Crop residues; denitrification; Denitrification potential; gas chromatography; N2O/(N2O+N2) ratio; organic carbon; organic nitrogen; Root exudates; soil; ultraviolet-visible spectroscopy; water solubility; Water-extractable organic carbon; Water-extractable organic carbon; Denitrification potential; N2O/(N2O+N2) ratio; Chemical composition of organic matter; Root exudates; Crop residues

Denitrification usually takes place under anoxic conditions and over short periods of time, and depends on readily available nitrate and carbon sources. Variations in CO2 and N2O emissions associated with plant residues have mainly been explained by differences in their decomposability. A factor rar...