Emissions of nitric oxide from 79 plant species in response to simulated nitrogen deposition
2012
Chen, Juan | Wu, Fei-Hua | Liu, Ting-Wu | Chen, Lei | Xiao, Qiang | Dong, Xue-Jun | He, Jun-Xian | Pei, Zhen-Ming | Zheng, Hai-Lei
To assess the potential contribution of nitric oxide (NO) emission from the plants grown under the increasing nitrogen (N) deposition to atmospheric NO budget, the effects of simulated N deposition on NO emission and various leaf traits (e.g., specific leaf area, leaf N concentration, net photosynthetic rate, etc.) were investigated in 79 plant species classified by 13 plant functional groups. Simulated N deposition induced the significant increase of NO emission from most functional groups, especially from conifer, gymnosperm and C₃ herb. Moreover, the change rate of NO emission was significantly correlated with the change rate of various leaf traits. We conclude that the plants grown under atmospheric N deposition, especially in conifer, gymnosperm and C₃ herb, should be taken into account as an important biological source of NO and potentially contribute to atmospheric NO budget.
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