the pH (H2O) in this soil depth, but not with stand structural parameters (Table 2). However, tree species diversity and soil chemistry explained only 22–32% (r = 0.47–0.57) of the variation. In contrast, Wne root necromass of the total soil proWle (0–40 cm) or of the upper 10 cm of the soil was not signiWcantly inXuenced by any of these parameters (data not shown).
Although mean Wne root biomass (0–40 cm) per ground area showed no signiWcant diVerences between stands diVering in tree diversity, Wne root biomass in samples from the topsoil (0–10 cm depth) was signiWcantly higher when four species were present in a soil sample as compared to less diverse samples (Fig. 2). Soil samples with one, two, or three root species present did not signiWcantly diVer with respect to Wne root biomass.
Species contribution to stand Wne root biomass
The proportion of Fagus Wne roots in total Wne root biomass decreased strongly from the DL 1 to the DL 3 plots while that of Tilia, Fraxinus, and Acer increased (Fig. 3). In the
the pH (H2O) in this soil depth, but not with stand structural parameters (Table 2). However, tree species diversity and soil chemistry explained only 22–32% (r = 0.47–0.57) of the variation. In contrast, Wne root necromass of the total soil proWle (0–40 cm) or of the upper 10 cm of the soil was not signiWcantly inXuenced by any of these parameters (data not shown).Although mean Wne root biomass (0–40 cm) per ground area showed no signiWcant diVerences between stands diVering in tree diversity, Wne root biomass in samples from the topsoil (0–10 cm depth) was signiWcantly higher when four species were present in a soil sample as compared to less diverse samples (Fig. 2). Soil samples with one, two, or three root species present did not signiWcantly diVer with respect to Wne root biomass.Species contribution to stand Wne root biomassThe proportion of Fagus Wne roots in total Wne root biomass decreased strongly from the DL 1 to the DL 3 plots while that of Tilia, Fraxinus, and Acer increased (Fig. 3). In the
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