Ozone Dosage-Crop Loss Function for Alfalfa: A Standardized Method for Assessing Crop Losses from Air Pollutants

Oshima, R. J.; Poe, M.P.; Braegelmann, P. K.; Baldwin, D. W.; Way, V. Van

doi:10.1080/00022470.1976.10470330

Cited by 49 publications

(11 citation statements)

References 6 publications

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“…For the most part, these are regression models relating the plant response to ozone dose averaged over time (Cure et a/. 1986;Larson and Heck 1976;Krupa and Nosal 1989), or utilization of ozone dose thresholds (Oshima et a/. 1976), or arbitrary assignments of weighting factors (Lefohn and Runeckles 1987;Lefohn eta/.…”

Section: Introductionmentioning

confidence: 99%

A Model for Estimating Daily Ozone Dose for Plants from Atmospheric Ozone Concentration and Vapor Pressure Deficit

Rubin¹,

McCulloch²,

Laurence³

1996

Journal of Agricultural, Biological, and Environmental Statisti

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Abstract-Ozone is the most important plant-damaging air pollutant in the United States today, causing annual crop losses estimated at greater than two billion dollars. The atmospheric ozone concentration that surrounds a plant is not the concentration that actually impinges upon the plant cells, because the plant's cuticle acts as a barrier to direct diffusion of ozone into cells for much of the plant surface. The primary avenue for ozone entry is via the stomata, which are adjustable pores in the epidermis. Ozone production and vapor pressure deficit (VPD) exhibit nonlinear diurnal cycles, which vary from location to location and, at a given location, vary with the seasons. VPD, a measure of the joint effect of temperature and humidity on the water potential gradient between a plant surface and the air, is highly correlated with stomatal closing and can be calculated from atmospheric data.Each plant species has its own threshold set of VPD and atmospheric ozone concentration, below which stomates are fully open and above which stomates are closed. Hence, combining ozone and VPD data with knowledge of how these variables affect the stomata allows one to model the effective ozone dose reaching the plant cells, a dose which typically cannot be measured directly.In this paper, we derive a diffusion model, consistent with Fick's first law, that predicts the ozone concentration reaching the cells adjacent to the substomatal cavity at a given time, using the concurrent ambient ozone concentration and VPD together with species-specific thresholds of ozone concentration and VPD below which stomates are fully open and above which stomates are closed.-1--2-Combining this diffusion model with particular functional forms for the daily curves of atmospheric ozone concentration and VPD allows one to calculate the expected daily ozone dose that the plant's cells receive and the variance of that dose. In addition, this methodology can be modified using hierarchical models to provide realistic regional estimates of the effective daily ozone dose for a species and the variance of the dose, which reflect the regional variation in the diurnal cycles of both atmospheric ozone concentration and VPD. The ozone dose and its variance predicted by this model can be used to assess ozone impact on red spruce in the northeastern US.

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Section: Introductionmentioning

confidence: 99%

A Model for Estimating Daily Ozone Dose for Plants from Atmospheric Ozone Concentration and Vapor Pressure Deficit

Rubin¹,

McCulloch²,

Laurence³

1996

Journal of Agricultural, Biological, and Environmental Statisti

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“…The visual estimate of foliar injury and the translation of this to estimates of yield losses was one of the earlier methods (Benedict et al l9l I ) . Devel-oping dose-response functions by placing plants in areas with differing ozone levels has worked for some crops and some geographic areas (Oshima et al 1976). Controlled-environment studies have been useful in describing injury symptoms and elucidating potential effects, but care had to be exercised in extrapolation to field impact (Heagle et al 1973;Runeckles 1974). Exposures in greenhouses have allowed for exposures under sunlight to ambient levels of pollutant (Thompson and Taylor 1969) but still involved considerable change in environmental conditions.…”

mentioning

confidence: 99%

The Use of Cultivar Yield Data to Estimate Losses Due to Ozone in Peanut

Ensing¹,

Hofstra²,

Adomait³

1986

Can. J. Plant Sci.

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“…The research undertaken here concerns the methodology of information synthesis and transfer of results to new contexts, as are appropriate. Previous work on economic evaluations of pollutant effects ("economic damage functions") often used its own directly-measured data base, 2 but had little realistic representation of damage processes.…”

Section: Methodsmentioning

confidence: 99%

Estimating Crop Yield Effects from Ambient Air Pollutants in the Ohio River Valley

Loucks¹,

Armentano²

1982

Journal of the Air Pollution Control Association

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Ozone Dosage-Crop Loss Function for Alfalfa: A Standardized Method for Assessing Crop Losses from Air Pollutants

Cited by 49 publications

References 6 publications

A Model for Estimating Daily Ozone Dose for Plants from Atmospheric Ozone Concentration and Vapor Pressure Deficit

A Model for Estimating Daily Ozone Dose for Plants from Atmospheric Ozone Concentration and Vapor Pressure Deficit

The Use of Cultivar Yield Data to Estimate Losses Due to Ozone in Peanut

Estimating Crop Yield Effects from Ambient Air Pollutants in the Ohio River Valley

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