extremely significantp < 0.01
Results Characterization of physicochemical properties of different species of litter There were extremely significant differences in Dw ( p < 0.01, F = 3296.941), total C ( p < 0.01, F = 20.538), total P ( p < 0.05, F = 7.668), C/N ( p < 0.01, F = 68.247), N/P ( p < 0.01, F = 21.415), and C/P ( p < 0.01, F = 26.931) among the three types of leaf litter, but there was no significant difference in the content of total N ( p > 0.05, F = 4.355), as shown in Table 1 .