The uptake of gaseous organic nitrogen by leaves: A significant global nitrogen transfer process

Jed P. Sparks; James M. Roberts; Russell K. Monson

doi:10.1029/2003GL018578

The uptake of gaseous organic nitrogen by leaves: A significant global nitrogen transfer process

Jed P. Sparks, James M. Roberts, Russell K. Monson

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Abstract

We report measurements of the uptake of peroxyacetyl nitrate (PAN) by plant leaves at mixing ratios typical of the continental lower troposphere. PAN uptake rates between 20 and 55 pmol m^-2 s^-1 were measured in eight plant species at an atmospheric mixing ratio of 250 pptv. Uptake rates in all species were strongly controlled by the leaf stomatal aperture. Foliar PAN uptake has important implications for balancing global and regional N cycles. From our measurements, we estimate 3% of the global annual emission of NO_x to the atmosphere could be removed by foliar uptake of PAN. Regionally, the deposition rate of PAN can be as much as 20% the rate of total N deposition.

Original language	English (US)
Pages (from-to)	ASC 4-1 - ASC 4-4
Journal	Geophysical Research Letters
Volume	30
Issue number	23
DOIs	https://doi.org/10.1029/2003GL018578
State	Published - Dec 1 2003
Externally published	Yes

ASJC Scopus subject areas

Geophysics
General Earth and Planetary Sciences

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10.1029/2003GL018578

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title = "The uptake of gaseous organic nitrogen by leaves: A significant global nitrogen transfer process",

abstract = "We report measurements of the uptake of peroxyacetyl nitrate (PAN) by plant leaves at mixing ratios typical of the continental lower troposphere. PAN uptake rates between 20 and 55 pmol m-2 s-1 were measured in eight plant species at an atmospheric mixing ratio of 250 pptv. Uptake rates in all species were strongly controlled by the leaf stomatal aperture. Foliar PAN uptake has important implications for balancing global and regional N cycles. From our measurements, we estimate 3% of the global annual emission of NOx to the atmosphere could be removed by foliar uptake of PAN. Regionally, the deposition rate of PAN can be as much as 20% the rate of total N deposition.",

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AU - Monson, Russell K.

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N2 - We report measurements of the uptake of peroxyacetyl nitrate (PAN) by plant leaves at mixing ratios typical of the continental lower troposphere. PAN uptake rates between 20 and 55 pmol m-2 s-1 were measured in eight plant species at an atmospheric mixing ratio of 250 pptv. Uptake rates in all species were strongly controlled by the leaf stomatal aperture. Foliar PAN uptake has important implications for balancing global and regional N cycles. From our measurements, we estimate 3% of the global annual emission of NOx to the atmosphere could be removed by foliar uptake of PAN. Regionally, the deposition rate of PAN can be as much as 20% the rate of total N deposition.

AB - We report measurements of the uptake of peroxyacetyl nitrate (PAN) by plant leaves at mixing ratios typical of the continental lower troposphere. PAN uptake rates between 20 and 55 pmol m-2 s-1 were measured in eight plant species at an atmospheric mixing ratio of 250 pptv. Uptake rates in all species were strongly controlled by the leaf stomatal aperture. Foliar PAN uptake has important implications for balancing global and regional N cycles. From our measurements, we estimate 3% of the global annual emission of NOx to the atmosphere could be removed by foliar uptake of PAN. Regionally, the deposition rate of PAN can be as much as 20% the rate of total N deposition.

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The uptake of gaseous organic nitrogen by leaves: A significant global nitrogen transfer process

Abstract

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