Articles | Volume 14, issue 9
https://doi.org/10.5194/bg-14-2513-2017
https://doi.org/10.5194/bg-14-2513-2017
Research article
 | 
17 May 2017
Research article |  | 17 May 2017

Soil nitrogen transformation responses to seasonal precipitation changes are regulated by changes in functional microbial abundance in a subtropical forest

Jie Chen, Guoliang Xiao, Yakov Kuzyakov, G. Darrel Jenerette, Ying Ma, Wei Liu, Zhengfeng Wang, and Weijun Shen

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Cited articles

Auyeung, D. S. N., Martiny, J. B. H., and Dukes, J. S.: Nitrification kinetics and ammonia-oxidizing community respond to warming and altered precipitation, Ecosphere, 6, 83, https://doi.org/10.1890/es14-00481.1, 2015.
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Bárta, J., Melichová, T., Vaněk, D., Picek, T., and Šantrůčková, H.: Effect of pH and dissolved organic matter on the abundance of nirK and nirS denitrifiers in spruce forest soil, Biogeochemistry, 101, 123–132, https://doi.org/10.1007/s10533-010-9430-9, 2010.
Beier, C., Beierkuhnlein, C., Wohlgemuth, T., Penuelas, J., Emmett, B., Korner, C., de Boeck, H. J., Christensen, J. H., Leuzinger, S., Janssens, I. A., and Hansen, K.: Precipitation manipulation experiments – challenges and recommendations for the future, Ecol. Lett., 15, 899–911, https://doi.org/10.1111/j.1461-0248.2012.01793.x, 2012.
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Short summary
We conducted a field manipulation experiment by redistributing 67 % of dry-season rainfall into the wet season while keeping the annual rainfall unchanged in a subtropical forest. Soil net nitrification and N mineralization rates were decreased by 13–20 % in the dry season and increased by 50 % with an accelerated NO3 leaching in the wet season. Functional microbial gene abundance and microbial biomass were the main factors affecting the N-process responses to the rainfall seasonality changes.
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