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Fig. 5 | Annals of Forest Science

Fig. 5

From: Potential soil methane oxidation in naturally regenerated oak-dominated temperate deciduous forest stands responds to soil water status regardless of their age—an intact core incubation study

Fig. 5

Structural equation model analysis showing the direct influence of soil water content (SWC) and soil mineral nitrogen on potential CH4 oxidation and CO2 production in the top soil layer (intact soil cores), and the covariation of these two processes, in A fall 2018 (χ2 = 0.011, p = 0.917; cfi = 1.000; rmsea = 0.000; srmr = 0.003), B spring 2019 (χ2 = 0.000, p = 0.998; cfi = 1.000; rmsea = 0.000; srmr = 0.000) and C summer 2019 (χ2 = 0.962, p = 0.327; cfi = 1.000; rmsea = 0.000; srmr = 0.031). Solid straight arrows represent significant pathways (p < 0.05), and dotted arrows indicate nonsignificant pathways. Numbers adjacent to the arrows are standardised path coefficients (shown only for significant paths). The curved double-sided arrows represent the covariation between CH4 oxidation and CO2 production. e is the variance that is not explained by the predictors. Numbers of observations are 156 (12 samples in 13 stands) in A and B and 96 in C (12 samples in 8 stands)

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Annals of Forest Science

ISSN: 1297-966X