Community diversity of arthropod in monsoon evergreen broad-leaved forest and coniferous and broad-leaf mixed forest in Dinghu Mountain

An investigation of community diversity of arthropod in monsoon evergreen broad-leaved forest and in coniferous and broad-leaf mixed forest were conducted in Dinghu Mountain Biosphere Reserve, Guangdong in May and October 2001. The results showed that average values of arthropod species and individuals in monsoon evergreen broad-leaved forest were significantly higher than those in coniferous and broad-leaf mixed forest in shrub layer in May (because the natural enemies are more and greatly reproduced). In contrast, the values in coniferous and broad-leaf mixed forest were higher than those in monsoon evergreen broad-leaved forest in herb & seedling of ground surface in May. The average values of arthropod species and individuals in monsoon evergreen broad-leaved forest were lower than those in coniferous and broad-leaf mixed forest in shrub layer in October, because the pests (Aphis) greatly reproduced, but there was not a significant difference at 0.05 level between the type of forests.