N2O emission from woody plants and its relation to their physiological activities

Abstract

Abstract: Using gas exchange measurement system, the photosynthesis, respiration and stomatal conductance of several coniferous and broadleaved tree species were measured simultaneously.Under conditions of low and middle illumination, N₂O emission is found from leaves or needles of tested tree species.There is no significant relationship between N₂O flux and photosynthetic rate.The N₂O absorption by plants is also observed.Its emission rate is increaed with increasing temperature and respiration rate.Stomata is probably the main pathway for N₂O emission.

Key words: Woody plant, N₂O emission, Stomatal conductance

Yang Sihe, Chen Guanxiong, Lin Jihui, Wu Jie, Ma Yueqiang. N₂O emission from woody plants and its relation to their physiological activities[J]. Chinese Journal of Applied Ecology, 1995, 6(4): 337-340.

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N₂O emission from woody plants and its relation to their physiological activities

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