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Scientia Silvae Sinicae ›› 2014, Vol. 50 ›› Issue (7): 99-104.doi: 10.11707/j.1001-7488.20140714

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Effects of Ectomycorrhizal Fungi(Pisolithus tinctorius) of Masson Pine (Pinus massoniana)on Soil Microbial Metabolic Function under Simulated Acid Rain

Wang Lin1, Chen Zhan2, Shang He2   

  1. 1. College of Environment and Planning, Henan University Kaifeng 475001;
    2. Key Laboratory of Forest Ecology and Environment of State Forestry Administration Institute of Forest Ecology, Environment and Protection, CAF Beijing 100091
  • Received:2013-12-30 Revised:2014-04-18 Online:2014-07-25 Published:2014-07-04
  • Contact: 陈展

Abstract:

This study aims to explore the effects of ectomycorrhizal colonization on soil microbial community and function of Pinus massoniana seedlings grown in acidified soils by using sole-carbon-source-utilization (BIOLOG). we set three levels of acid treatments, pH3.5, pH4.5 and pH5.6 (control), and applied two ectomycorrhizal treatments (inoculated Pisolithus tinctorius, non-inoculated) in a pot experiments. Masson pine seedlings were inoculated with P.tinctorius (ECM) for 210 days in acidified forest soil originating from Chongqing, Southwest China. The results showed that: 1) Compared with the control treatment (pH 5.6), high acid stress reduced the average vitality, soil microbial richness and diversity indices; 2) With the control treatment, ectomycorrhizal fungi counteracted the effects of mild acid on soil microbial community; 3) With high acid stress treatments, ectomycorrhizal fungi increased soil microbial activity, richness and diversity, and changed the utilization pattern of carbon source.

Key words: ectomycorrhizal fungi, acid rain, soil microbial community, masson pine

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