Fig. 4: Analysis of elemental spatial distribution based on STXM–NEXAFS images showing greater C–Ca co-localization in the rhizosphere.
From: Root exudates simultaneously form and disrupt soil organo-mineral associations
Color-coded composite RGB optical density maps for a rhizosphere and b non-rhizosphere soils. See color triangle for color coding. Elemental spatial correlation plots between carbon and calcium for two c rhizosphere and d non-rhizosphere samples. Pearson correlation coefficients and lines are shown for elemental correlation. White bars: 5 µm.
