Effects of nitrogen deposition on diversity and composition of soil bacterial community in a subtropical Cunninghamia lanceolata plantation.

doi:10.13287/j.1001-9332.201801.034

Abstract

Abstract: The increasing rate of atmospheric nitrogen (N) deposition has become the focus of research attention. Soil bacterial community plays an important role in soil nutrient cycling. We stimulated N deposition at the Forest Ecosystem of Fujian Normal University and Global Change Research Station in Chenda Town, Sanming City in the Fujian Province of China. We examined the effect of N deposition on the structure and composition of soil bacterial community using 16S rDNA amplification sequencing. The results showed that short-term addition of N had no significant effect on the soil bacterial diversity and composition, but high N treatment significantly affected therelative abundance of individual bacterial species, which increased the abundance of Copiotrophic group and decreased that of the corresponding Oligotrophic group, indicating that changes in soil bacterial nutrient strategies were driven by the availability of nutrients. Enhanced understanding of the responses of soil bacterial community and nutrient distribution pattern to rapid N deposition could improve the prediction ability about the future environment.

HAO Ya-qun, XIE Lin, CHEN Yueh-min, TANG Cai-di, LIU Xiao-fei, LIN Wei-sheng, XIONG De-cheng, YANG Yu-sheng. Effects of nitrogen deposition on diversity and composition of soil bacterial community in a subtropical Cunninghamia lanceolata plantation.[J]. Chinese Journal of Applied Ecology, 2018, 29(1): 53-58.

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