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Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (19): 66-74.doi: 10.11924/j.issn.1000-6850.2014-0375

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Community Structure and Variation of Soil Fauna Among the Different Elevations in Evergreen Broad-leaf Forest

  

  • Received:2014-02-18 Revised:2014-04-11 Online:2014-07-05 Published:2014-07-05

Abstract: In order to understand the influence on the distribution of soil fauna by elevation gradient and floor litter quality, in August of 2011 and June of 2012, the author studied the composition and distribution of soil fauna community among different elevation in evergreen broad-leaved forest of Ailaoshan by using field survey method. The results showed that Acarina and Collembola were the dominant groups, and Diptera, Coleoptera, Hymenoptera, Psocoptera, Hemiptera, Lepidoptera were the common groups among the elevation gradient. The groups and individual density of soil fauna were significantly affected by elevation gradient. Soil fauna group decreased along the elevation increase and individual of soil fauna showed increase pattern after decline first. The lowest density was found at elevation of 2400 m. C concentration of floor litter reached the highest on elevation 2200 m, and N concentration of floor litter on elevation 2600 m was the highest among the surveyed elevation gradient. There was positive correlation between Collembola density and N concentration of floor litter in this forest type. The results suggest that litter quality and environmental factors such as temperature and moisture caused by elevation gradient change affect soil fauna community together.