Zoological Studies

Vol. 51 No. 5, 2012

Soil Nematode Abundance and Diversity in Different Forest Types at Changbai Mountain, China

Min Zhang1,2,3, Wen-Ju Liang1, and Xiao-Ke Zhang1,*

1State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110164, China
2Vegetable Research Institute, Liaoning Academy of Agricultural Sciences, Shenyang 110161, China
3Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Min Zhang, Wen-Ju Liang, and Xiao-Ke Zhang (2012) Soil nematode communities were investigated in the O and A horizons of soils in 4 typical forest types (mixed coniferous-broadleaf forest (MCB), dark-coniferous spruce-fir forest (DCSF), dark-coniferous spruce forest (DCS), and Ermans birch forest (EB)) along an elevational gradient at Changbai Mt., China.  Sixty-two genera were identified in this study.  Results showed that soil nematode abundance and diversity significantly differed among the different forest types along an elevational gradient.  A horizon effect was stronger on nematode abundance than on diversity.  Fungivores were found to be the dominant trophic group and comprised approximately 45%-63% of total nematodes.  Nematode assemblages had the greatest diversity, maturity, and generic richness under the MCB.  Forest types could be distinguished through a canonical correspondence analysis of nematode genera.  Forest type and elevation were crucial to the distribution of soil nematode communities at Changbai Mt.  The soil C:N ratio, microbial biomass carbon, and pH were important factors affecting soil nematode communities. 

Key words: Abundance, Diversity, Forest type, Soil horizon, Soil nematodes.

*Correspondence: Tel: 86-24-83970359.  Fax: 86-24-83970300.  E-mail:zxk@iae.ac.cn