Figure 1.
Location of eight study forest sites.
Figure 2.
Relationships between community biomass and soil nutrient measures.
PF indicates the pine forest. * P<0.05; *** P<0.001.
Figure 3.
Relationships between litterfall C, N and P productions and soil nutrient measures.
PF indicates the pine forest. ** P<0.01; *** P<0.001.
Figure 4.
Relationships between forest floor turnover rate with F/H layer N:P ratio.
Table 1.
Summary of regressions of forest floor turnover rates against nutrient measures of forest floors.
Table 2.
Correlations between nutrient measures in the plant and soil samples.
Table 3.
Correlations of nutrient measures between the plant and soil samples.
Table 4.
Selected characteristics of the 0–15 cm mineral soil.
Figure 5.
Mean N and P concentrations of plant materials of eight study forests.
Dashed lines depict N:P ratios of 16, 20 and 25 on a mass basis. Ratios of 16 and 20 are P limitation thresholds of plant growth proposed by Koerselman and Meuleman (1996) [34] and Güsewell (2004) [31], respectively; ratio of 25 is the critcial N:P ratio that indicates P limitation on litter decomposition proposed by Güsewell and Verhoeven (2006) [61].
Table 5.
Statistical characteristics of nutrient measures of selected plant materials.