Fig. 6 | Scientific Reports

Fig. 6

From: Sulfur-mediated transformation, export and mineral complexation of organic and inorganic C, N, P and Si in dryland soils

Fig. 6

Fluorescence (excitation-emission matrix, EEM) spectra of water-extracted/labile state (HSLS) (a) and alkali-extracted/complexed state (HSCS) (b) of humic substances from forest, agriculture, grassland and desert dry-affected soils, and detected fluorescence peaks of humic acid-like (HA-like), fulvic acid-like (FA-like) and protein-like substances-like (PLS-like) identified using EEM-PARAFAC modeling. ‘nd’: not detected.

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