Synthetic ozone deposition and stomatal uptake at flux tower sites

Ducker, Jason A.; Holmes, Christopher D.; Keenan, Trevor F.; Fares, Silvano; Goldstein, Allen H.; Mammarella, Ivan; Munger, J. William; Schnell, Jordan L.

doi:10.5194/bg-2018-172

Cited by 5 publications

(8 citation statements)

References 60 publications

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“…There are a few models, most commonly for crops, considering both instantaneous and cumulative stomatal uptake (Emberson et al, ; Ewert & Porter, ; Tao et al, ). Plant damage is often assumed more closely related to cumulative, rather than instantaneous, stomatal ozone uptake (Ducker et al, ; Massman et al, ; Matyssek et al, ).…”

Section: Theory Models and Observations Of Terrestrial Ozone Deposimentioning

confidence: 99%

“…Outliers are defined as values >1.5× the interquartile range of the 25th to 75th percentiles. Sites and references included are Auchencorth Moss (Fowler et al, ), Bergamo (Gerosa et al, ), Bily Kriz (Juráň et al, ; Zapletal et al, ), Blodgett Forest (Ducker et al, ; Fares, McKay, et al, ; Goldstein, ; Kurpius & Goldstein, ), Bondville (L. Zhang et al, ), Braunscheig (Mészáros, Horváth, et al, ), Bugacpuszta (Horváth et al, ), Burriana (Cieslik, ), Cadenazzo (Bassin et al, ), Cala Violina (Cieslik, ), Camp Borden (Fuentes et al, ), Castelporziano (Cieslik, , ; Gerosa et al, ; Gerosa, Finco, Mereu, Vitale, et al, ,Gerosa, Finco, Mereu, Marzuoli, et al, ; Fares et al, ; Hoshika et al, ; Savi & Fares, ), California Ozone Deposition Experiment cotton (Grantz et al, ), California Ozone Deposition Experiment vineyard (Grantz et al, ), Comun Nuovo (Bassin et al, ; Cieslik, ), Cuatro Vientos (Cieslik, ), Diepoholz (El‐Madany et al, ), Flanders (Neirynck et al, ), Gilchriston Farm (Coyle et al, ), GLEES Brooklyn Lake (Zeller & Nikolov, ), Grignon (Stella, Personne, et al, ; Stella et al, ), Hartheim (Joss & Graber, ), Harvard Forest (Clifton et al, ; Ducker et al, ), Hyytiälä (Altimir et al, ; Ducker et al, ; Launiainen et al, ; Rannik et al, ; P. T. Zhou et al, ), Ispra (Cieslik, ), Kaamanen (Tuovinen et al, ), Kane Experimental Forest (L. Zhang et al, ), Klippeneck (Cieslik, ), Kranzberger Forst (Nunn et al, ), La Cape Sud (Stella, Personne, et al, ), Le Dézert (Cieslik, ), Les Landes (Lamaud et al, ), Lincove (Fares et al, ), Lochristi (Zona et al, ), Central Plains Experimental Range (Massman, ), Nashville (L. Zha...…”

Section: Modeling Ozone Dry Deposition Using Resistance Networkmentioning

confidence: 99%

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Dry Deposition of Ozone Over Land: Processes, Measurement, and Modeling

Clifton

Fiore

Massman

et al. 2020

Reviews of Geophysics

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115

133

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Dry deposition of ozone is an important sink of ozone in near‐surface air. When dry deposition occurs through plant stomata, ozone can injure the plant, altering water and carbon cycling and reducing crop yields. Quantifying both stomatal and nonstomatal uptake accurately is relevant for understanding ozone's impact on human health as an air pollutant and on climate as a potent short‐lived greenhouse gas and primary control on the removal of several reactive greenhouse gases and air pollutants. Robust ozone dry deposition estimates require knowledge of the relative importance of individual deposition pathways, but spatiotemporal variability in nonstomatal deposition is poorly understood. Here we integrate understanding of ozone deposition processes by synthesizing research from fields such as atmospheric chemistry, ecology, and meteorology. We critically review methods for measurements and modeling, highlighting the empiricism that underpins modeling and thus the interpretation of observations. Our unprecedented synthesis of knowledge on deposition pathways, particularly soil and leaf cuticles, reveals process understanding not yet included in widely used models. If coordinated with short‐term field intensives, laboratory studies, and mechanistic modeling, measurements from a few long‐term sites would bridge the molecular to ecosystem scales necessary to establish the relative importance of individual deposition pathways and the extent to which they vary in space and time. Our recommended approaches seek to close knowledge gaps that currently limit quantifying the impact of ozone dry deposition on air quality, ecosystems, and climate.

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Section: Theory Models and Observations Of Terrestrial Ozone Deposimentioning

confidence: 99%

Section: Modeling Ozone Dry Deposition Using Resistance Networkmentioning

confidence: 99%

Dry Deposition of Ozone Over Land: Processes, Measurement, and Modeling

Clifton

Fiore

Massman

et al. 2020

Reviews of Geophysics

Self Cite

115

133

View full text Add to dashboard Cite

show abstract

“…We compared the drought signal to a data set of stomatal ozone fluxes derived from flux tower measurements (Ducker et al., 2018, see Text S1 in Supporting Information for more details). The stomatal ozone flux does not exceed 3 nmol m −2 s −1 and is up to 50% lower compared to the multi‐year summer average value (Figure 1).…”

Section: Methodsmentioning

confidence: 99%

“… Summer 2012 ozone fluxes around northern Italy in a spatio‐temporal context. (a) June–August average daytime total (outer circles) and stomatal (inner circles) ozone fluxes derived from observations at FLUXNET locations (data from Ducker et al., 2018). (b) July–August normalized 6‐month SPEI anomaly (gridded data, derived from https://spei.csic.es/index.html, last access 24 March 2022), where negative (positive) values indicate drier (wetter) than average conditions, and the total and stomatal ozone flux relative anomaly compared to the observational record at the FLUXNET location.…”

Section: Methodsmentioning

confidence: 99%

The Combined Impact of Canopy Stability and Soil NO_x Exchange on Ozone Removal in a Temperate Deciduous Forest

et al. 2022

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Removal of ozone at the land surface (ozone dry deposition) is an important component of the tropospheric ozone budget, accounting for 15%-20% of the total tropospheric ozone sink (Bates & Jacob, 2020;Hu et al., 2017;Young et al., 2018). Ozone dry deposition occurs when air masses, transported downward by turbulent motions in the atmospheric boundary layer, come in contact with the land surface. Forests are particularly efficient ozone sinks (e.g., Hardacre et al., 2015): removal processes include plant uptake through stomata and various non-stomatal sinks such as external leaf surfaces and soils, and chemical removal in the canopy airspace (Fowler et al., 2009). Upon stomatal uptake, ozone may impact stomatal conductance and photosynthesis, reducing ecosystem carbon assimilation on large spatial scales (Ainsworth et al., 2012). Better quantitative estimates

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“…Most studies infer stomatal conductance (g s ) from canopy-top micro-meteorological and eddy covariance observations using an inverted form of the Penman-Monteith equation (e.g. Fowler et al, 2001;Clifton et al, 2017Clifton et al, , 2019Ducker et al, 2018), although some studies apply alternative g s estimation methods based on gross primary production (GPP; El-Madany et al, 2017;Clifton et al, 2017). In such observation-based studies, the non-stomatal ozone removal component (g ns ) is generally treated as the residual of the total uptake 'conductance' (g c , inferred based on the ozone dry deposition velocity) and g s .…”

mentioning

confidence: 99%

Ozone deposition impact assessments for forest canopies require accurate ozone flux partitioning on diurnal timescales

Visser

Ganzeveld

Goded

et al. 2021

Preprint

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Abstract. Dry deposition is an important sink of tropospheric ozone that affects surface concentrations, and impacts crop yields, the land carbon sink and the terrestrial water cycle. Dry deposition pathways include plant uptake via stomata and nonstomatal removal by soils, leaf surfaces and chemical reactions. Observational studies indicate that ozone deposition exhibits substantial temporal variability that is not reproduced by atmospheric chemistry models due to a simplified representation of vegetation uptake processes in these models. In this study, we explore the importance of stomatal and non-stomatal uptake processes in driving ozone dry deposition variability on diurnal to seasonal timescales. Specifically, we compare two land surface ozone uptake parameterizations – a commonly applied ’big leaf’ parameterization (W89; Wesely, 1989) and a multi-layer model (MLC-CHEM) constrained with observations – to multi-year ozone flux observations at two European measurement sites (Ispra, Italy, and Hyytiälä, Finland). We find that W89 cannot reproduce the diurnal cycle in ozone deposition due to a mis-representation of stomatal and non-stomatal sinks at our two study sites, while MLC-CHEM accurately reproduces the different sink pathways. Evaluation of non-stomatal uptake further corroborates the previously found important roles of wet leaf uptake in the morning under humid conditions, and soil uptake during warm conditions. The misrepresentation of stomatal versus non-stomatal uptake in W89 results in an overestimation of growing-season cumulative ozone uptake (CUO), a metric for assessments of vegetation ozone damage, by 18 % (Ispra) and 28 % (Hyytiälä), while MLC-CHEM reproduces CUO within 7 % of the observation-inferred values. Our results indicate the need to accurately describe the partitioning of the ozone atmosphere-biosphere flux over the in-canopy stomatal and non-stomatal loss pathways to provide more confidence in atmospheric chemistry model simulations of surface ozone mixing ratios and deposition fluxes for large-scale vegetation ozone impact assessments.

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Synthetic ozone deposition and stomatal uptake at flux tower sites

Cited by 5 publications

References 60 publications

Dry Deposition of Ozone Over Land: Processes, Measurement, and Modeling

Dry Deposition of Ozone Over Land: Processes, Measurement, and Modeling

The Combined Impact of Canopy Stability and Soil NO_x Exchange on Ozone Removal in a Temperate Deciduous Forest

Ozone deposition impact assessments for forest canopies require accurate ozone flux partitioning on diurnal timescales

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Synthetic ozone deposition and stomatal uptake at flux tower sites

Cited by 5 publications

References 60 publications

Dry Deposition of Ozone Over Land: Processes, Measurement, and Modeling

Dry Deposition of Ozone Over Land: Processes, Measurement, and Modeling

The Combined Impact of Canopy Stability and Soil NOx Exchange on Ozone Removal in a Temperate Deciduous Forest

Ozone deposition impact assessments for forest canopies require accurate ozone flux partitioning on diurnal timescales

Contact Info

Product

Resources

About

The Combined Impact of Canopy Stability and Soil NO_x Exchange on Ozone Removal in a Temperate Deciduous Forest