Articles | Volume 15, issue 14
https://doi.org/10.5194/bg-15-4447-2018
https://doi.org/10.5194/bg-15-4447-2018
Research article
 | 
20 Jul 2018
Research article |  | 20 Jul 2018

Fungi regulate the response of the N2O production process to warming and grazing in a Tibetan grassland

Lei Zhong, Shiping Wang, Xingliang Xu, Yanfen Wang, Yichao Rui, Xiaoqi Zhou, Qinhua Shen, Jinzhi Wang, Lili Jiang, Caiyun Luo, Tianbao Gu, Wenchao Ma, and Guanyi Chen

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Cited articles

Bai, Y., Jianguo, W. U., Clark, C. M., Naeem, S., Pan, Q., Huang, J., Zhang, L., and Han, X.: Tradeoffs and thresholds in the effects of nitrogen addition on biodiversity and ecosystem functioning: evidence from inner Mongolia Grasslands, Glob. Change Biol., 16, 358–372, https://doi.org/10.1111/j.1365-2486.2009.01950.x, 2010. 
Borneman, J. and Hartin, R. J.: PCR primers that amplify fungal rRNA genes from environmental samples, Appl. Environ. Microb., 66, 4356–4360, https://doi.org/10.1128/AEM.66.10.4356-4360, 2000. 
Cabello, P., Roldán, M. D., and Moreno-Vivián, C.: Nitrate reduction and the nitrogen cycle in archaea, Microbiology, 150, 3527–3546, 2004. 
Castaldi, S. and Smith, K. A.: Effect of cycloheximide on N2O and NO3- production in a forest and an agricultural soil, Biol. Fert. Soils, 27, 27–34, 1998. 
Che, R., Deng, Y., Wang, W., Rui, Y., Zhang, J., Tahmasbian, I., Tang, L., Wang, S., Wang Y., Xu, Z., and Cui, X.: Long-term warming rather than grazing significantly changed total and active soil procaryotic community structures, Geoderma, 316, 1–10, 2018. 
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Short summary
Soil fungi could be the main source of N2O production potential in the Tibetan alpine grasslands. Warming and winter grazing may not affect the potential for soil N2O production potential, but climate warming can alter biotic pathways responsible for N2O production. These findings indicate that characterizing how fungal nitrification–denitrification contributes to N2O production, as well as how it responds to environmental and land use changes, can advance our understanding of N cycling.
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