Abstract
The influence of woodland soil bulk density on the growth and distribution of fine root system of main planting tree species in the Weibei Loess Plateau was investigated by means of pot culture and field survey. Results indicated that in the woodland of Pinus tabulaeformis, soil bulk density increased with the depth at different sites, while in the woodland of Robinia pseudoacacia, soil bulk density was higher than that in P. tabulaeformis, and there was no clear difference across the profile. Further analysis implied that there existed negative correlations between soil bulk density and fine root length in the woodland of P. tabulaeformis. Results from pot culture indicated that although the effects of pot culture media on the fine root growth and development of different tree species seedlings were different, all treated seedlings grew better in the soil matter with medium bulk density and porosity and with the biggest biomass. Bulk density of pot culture media had clear effects on the growth and development of P. tabulaeformis and R. pseudoacacia seedling roots, especially on the former, whereas it had little effect on that of Platycladus orientalis and Prunus armeniaca var. ansu, whose fine root biomass changed little in different pot culture media.
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Translated from Scientia Silvae Sinicae, 2004, 40(5) (in Chinese)
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Zhao, Z., Li, P., Xue, W. et al. Relation between Growth and Vertical Distribution of Fine Roots and Soil Density in the Weibei Loess Plateau. Front. Forest. China 1, 76–81 (2006). https://doi.org/10.1007/s11461-005-0006-0
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DOI: https://doi.org/10.1007/s11461-005-0006-0