[Variation of soil microsite moisture-physical properties and its effect on Fraxinus mandshurica juvenile stand growth].

Soil microsite plays an important role in the regeneration, seedling survival, and individual growth of trees. This paper studied the relationship between soil microsite moisture-physical properties and Fraxinus mandshurica growth. Variation was found not only among different sites in traditional scale, but also among different microsites. Some variations of soil properties among different microsite were greater than those among different sites. The growth of Fraxinus mandshurica varied greatly among different microsites. Microsites affected most soil moisture-physical properties and tree growth. The study demonstrated the importance of matching trees to the proper microsite on the growth of plantation stand.