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| Study on species diversity of Eucalyptus spp., Pinusmassoniana and Pinus elliottii plantations |
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| Abstract: |
| The biodiversity characteristics of different types of forest were studied in Guangxi Shatang State Forest
Farm based on the biological community survey about three kinds of pure plantations including Eucalyptus spp., Pinus
massoniana and Pinus elliottii. The results indicated that there was no significant difference among different types of stands
in species diversity index, and the species type and quantity in Eucalyptus plantation depended on those of original
vegetation and biology to a great extent. The Shannon-Weiner diversity index, Simpson dominance index and Margalef
richness index of the herb layer were generally lower than those of the shrub layer, the layering of herb layer and shrub
layer in Eucalyptus plantation was not obvious, and the species richness index and diversity index of the shrub layer were
higher than those of the herb layer. Repeated planting could decrease the diversity index of the shrub layer, but increase
that of the herb layer. |
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