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Electronic Journal of Biotechnology
Universidad Católica de Valparaíso
ISSN: 0717-3458
Vol. 17, No. 5, 2014, pp. 199-203
Bioline Code: ej14033
Full paper language: English
Document type: Research Article
Document available free of charge

Electronic Journal of Biotechnology, Vol. 17, No. 5, 2014, pp. 199-203

 en Impact of simulated acid rain on soil microbial community function in Masson pine seedlings
Wang, Lin; Chen, Zhan; Shang, He; Wang, Jing & Zhang, Peng-yan

Abstract

Background: Accompanying its rapid economic development and population growth, China is the world's third largest acid rain region, following Europe and North America. The effects of acid rain on forest ecosystem were widely researched, including the growth, the nutrient of the leaf and soil, and so on. However, there are few reports about the effects of acid rain on the soil microbial diversity. This study investigated the effects of acid rain on soil microbial community function under potted Masson pine seedlings ( Pinus massoniana check for this species in other resources Lamb).
Results: After 7 months of treatment with simulated acid rain, the low acid load treatment (pH 5.5) stimulated soil microbial activity, and increased soil microbial diversity and richness, while the higher levels of acid application (pH 4.5, pH 3.5) resulted in lower soil microbial activity and had no significant effects on soil microbial diversity and richness. Principal component analysis showed that there was clear discrimination in themetabolic capability of the soilmicrobial community among the simulated acid rain and control treatments.
Conclusion: The results obtained indicated that the higher acid load decreased the soil microbial activity and no effects on soil microbial diversity assessed by Biolog of potted Masson pine seedlings. Simulated acid rain also changed the metabolic capability of the soil microbial community.

Keywords
Metabolic capability; Soil microbial activity; Soil microbial diversity and richness

 
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