Journal cover Journal topic
Biogeosciences An interactive open-access journal of the European Geosciences Union
doi:10.5194/bg-2017-116
© Author(s) 2017. This work is distributed
under the Creative Commons Attribution 3.0 License.
Research article
18 Apr 2017
Review status
This discussion paper is under review for the journal Biogeosciences (BG).
Effects of temperature on the composition and diversity of bacterial communities in bamboo soils at different elevations
Yu-Te Lin1, Zhongjun Jia2, Dongmei Wang2, and Chih-Yu Chiu1 1Biodiversity Research Center, Academia Sinica, Taipei 11529, Taiwan
2State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Science, Nanjing, China
Abstract. Bamboo is an important resource distributed in mountain areas in Asia. Little is known about the impact of temperature changes on bamboo soil bacterial communities. In this study, responses of bacterial communities collected at 600, 1,200, and 1,800 m to different incubation temperatures (15 °C, 20 °C, and 35 °C) were examined using barcoded pyrosequencing and soil analyses. Soil respiration was greater at higher elevation and incubation temperature. The bacterial diversity in samples incubated at 35 °C decreased after 112 days of incubation. Before incubation, Acidobacteria and Proteobacteria were the most abundant phyla in all communities. The relative abundance of Acidobacteria generally decreased after 112 days of incubation at the three temperatures. α-Proteobacteria showed a similar trend, while the abundance of γ-Proteobacteria increased after incubation, except those from 1,800 m incubated at 35 °C. Non-metric multi-dimensional scaling analysis revealed structural variability under different incubation times and temperatures. Principal component analysis indicated that bacterial structure incubated at 35 °C correlated with temperature and soil respiration, while structures in samples incubated at 15 °C and 20 °C correlated with time. These results suggest that a temperature rise could result in increasing soil respiration and soil soluble carbon and nitrogen consumption, influencing the bacterial diversity and structure at different elevations.

Citation: Lin, Y.-T., Jia, Z., Wang, D., and Chiu, C.-Y.: Effects of temperature on the composition and diversity of bacterial communities in bamboo soils at different elevations, Biogeosciences Discuss., doi:10.5194/bg-2017-116, in review, 2017.
Yu-Te Lin et al.
Yu-Te Lin et al.
Yu-Te Lin et al.

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Short summary
We evaluated the bacterial composition and diversity of bamboo soils sampled at different elevations and incubated at different temperatures. Soil respiration was greater at higher elevation and temperature. Soil bacterial structure and diversity showed variable under different incubation times and temperatures. Increases in temperature increased soil respiration and consumption of soil soluble carbon and nitrogen, thus influencing the bacterial diversity and structure at different elevations.
We evaluated the bacterial composition and diversity of bamboo soils sampled at different...
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