Fig. 9

Association networks of metabolites and nutrients in larch leaves under different light conditions. (a) Correlation row network diagram, (b) MCC calculation score diagram. Nodes represent metabolites and elements, and edges represent correlations between them. Metabolites of the same class are shown in the same colour. Red lines indicate positive correlations, and blue lines indicate negative correlations. The node size reflects the number of edge line connections, and the edge line thickness reflects the strength of the correlation.