With Acacia podalyriifolia seedlings as the material, different illumination treatments (0%,
30% and 50% respectively) were used to determine the growth indexes (seedling height, ground diameter),
chlorophyll content and biomass of the leaves of the A. podalyriifolia. The results showed that under the condition
of illumination of 50%, the seedling growth index was low under the conditions of 0%, which showed that
the A. podalyriifolia was not tolerant to shade. With the decrease of light intensity, the content of chlorophyll
increased gradually, the chlorophyll content of 50% under the forest was the highest, and the chlorophyll content
was different under the condition of 0% and 30% under the light of forest. The biomass of the A. podalyriifolia
under different shading was decreased with the increase of shading, at the high light level, the plant increased the
biomass distribution of the leaves and branches, and the distribution of the biomass of the roots under the low light
level, and the distribution of the roots、leaves and shoots in the medium illumination was between the two. The
results of various growth indexes (seedling height, ground diameter), chlorophyll content and biomass of leaves
showed that the weak light was not conducive to the growth of A. podalyriifolia seedlings.
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