Emissions of nitric oxide from 79 plant species in response to simulated nitrogen deposition.
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 C(3) 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 C(3) herb, should be taken into account as an important biological source of NO and potentially contribute to atmospheric NO budget.
Key Laboratory for Subtropical Wetland Ecosystem Research of MOE, College of the Environment and Ecology, Xiamen University, Xiamen, 361005 PR China.
Juan
J
Chen
Fei-Hua
FH
Wu
Ting-Wu
TW
Liu
Lei
L
Chen
Qiang
Q
Xiao
Xue-Jun
XJ
Dong
Jun-Xian
JX
He
Zhen-Ming
ZM
Pei
Hai-Lei
HL
Zheng
D000393:Air Pollutants / Q000032:analysis; D009569:Nitric Oxide / Q000737:chemistry*; D009584:Nitrogen / Q000378:metabolism*; D018515:Plant Leaves / Q000737:chemistry / Q000378:metabolism; D010944:Plants / Q000737:chemistry / Q000378:metabolism*
D000393:Air Pollutants; D009569:Nitric Oxide; D009584:Nitrogen