Fig. 1: Denitrification rate (DR) and methane-oxidizing activity (MOA) in rice paddy fields across various climatic regions of China.
From: Metabolic coupling between soil aerobic methanotrophs and denitrifiers in rice paddy fields
A The distribution patterns of DR and MOA; B Correlations between MOA and DR, and between gene abundances associated with methane oxidation (pmoA) and denitrification (nirK and nirS); C Structural equation modeling describing the direct and indirect effects of climate, soil properties, MOA and microbial attributes on DR. The solid lines were fitted by linear regressions in (B). The error bands surrounding the regression lines represent the 95% confidence interval of the correlation (n = 139). Solid and dashed arrows indicate significant and insignificant relationships in (C), respectively. MAP mean annual precipitation, MAT mean annual temperature, SOC soil organic carbon; Microbial community, axes of NMDS ordinations. * Indicates statistically significant levels of p < 0.05 and ** indicates p < 0.01. We only included direct or indirect associations that could potentially influence DR for graphical simplicity. Additional associations of climate and soil properties with microbial attributes are available in Supplementary Table 6. Exact p values and Source data are provided as a Source Data file.
